Minia2a Remote MCP server

A-share Billboard: Returns the day's A-share dragon-tiger details: listed stocks, top-5 buy/sell seats, institution/hot-money net, listing reason (limit-up/down/turnover/amplitude). Full seat-game panorama. -- English -- 返回当日 A股龙虎榜明细：上榜个股、买卖前五席位、机构/游资净额、上榜原因（涨停/跌停/换手/振幅）。席位博弈全景。 🆓 5 free trial calls per signed wallet

A-share Valuation: Pass a code; returns the stock's PE/PB historical percentile (where it sits in history), percentile value, historical range and peer comparison. See cheap-or-expensive at a glance. -- English -- 传入代码，返回该股的 PE/PB 历史分位（当前处于历史的百分之多少）、分位值、历史区间与同行对比。一眼看清贵不贵。 🆓 5 free trial calls per signed wallet

A-share Limit-Up Scanner (A股涨停扫描): 🆓 5 free trial calls per signed wallet

Get live platform statistics: service count, agent count, trial usage, paid calls.

Search and discover API services on the minia2a marketplace. Returns service name, price, category.

2048 Move: Compute the next 2048 game move given a board state.

24game Solve: Solve the 24 Game puzzle — find expressions that evaluate to 24.

Abbreviation: Look up common abbreviations and their meanings.

ABI Decode: Decode ABI-encoded calldata into human-readable arguments.

ABI Encode: Encode function arguments into ABI calldata.

ABI Lookup: Contract ABI lookup via 4byte.directory. 🆓 5 free trial calls per signed wallet

Abundant Numbers: Check if a number is abundant.

Acceleration: Convert between acceleration units.

Accessibility Check: Check a web page for accessibility issues.

Account Age: Blockchain account age lookup. 🆓 5 free trial calls per signed wallet

Accounting Format: Format a number as currency (accounting).

Acres To Hectares: Convert acres to hectares.

Acronym Expand: Expand an acronym to its full form.

Acronym Find: Find the meaning of an acronym.

Add Business Days: Add business days to a date.

Add Commas: Add thousands separators to a number.

Add Days: Add days to a date.

Add Hours: Add hours to a time.

Add Months: Add Months

Add Years: Add Years

Address Normalize: Address Normalize

Address Parse: Parse blockchain addresses. 🆓 5 free trial calls per signed wallet

Address Validate: Address Validate

Adjacency Matrix: Adjacency Matrix

Adjusted R Squared: Adjusted R Squared

Advice Slip: Advice Slip

Age: Calculate age from a date of birth.

Age Calculate: Age Calculate

x402-agent-intel: 查 agent 的链上活动情报——给定 agent 钱包地址，返回 Base/Ethereum 余额、交易数、

x402-agent-skill-pack: Packaged agent skills.

Agent Toolkit: Composite transformation: extracts structured data, entities, tables, and stats from text. One call replaces 4 endpoints.

AI Ask: Ask a general question to an AI assistant.

AI Contract Audit: Smart contract security audit, solidity/rust/move vulnerability scan. AI deep audit across chains — 3x sampled, deduplicated. Catches business-logic, economic, cross-contract flaws (uninitialized owner, account confusion, missing signer auth). LIMITATIONS: AI audit is probabilistic — may miss vulnerabilities or report non-issues; treat as guidance, not proof; critical findings require manual verification. Case: minia2a.uk/blog/blog-ai-contract-audit-august-2026.html

AI Blog Outline: Generate a blog post outline with an AI.

AI Briefing: Generate a concise briefing on a topic using AI.

AI Changelog: Generate a changelog from git commits using AI.

AI Chat: Chat with an AI assistant.

AI Cite: Generate citations with AI.

AI Classify: Classify text into one of your labels (default: spam/urgent/technical/finance/general) via AI. Pass text plus optional labels array; returns the best single label.

AI Code Explain: Explain code in plain English with AI.

AI Code Review: Review code for bugs with AI.

AI Cold Outreach: Draft cold outreach emails with AI.

AI Commit Msg: Generate a commit message with AI.

AI Compare: Compare two items with AI.

AI Contract: Analyze a smart contract with AI.

AI Data: Analyze data: trends, outliers, insights.

AI Diff Review: Review a code diff with AI.

AI Email Draft: Draft an email with AI.

AI Email Writer: Generate a full email in any tone (professional, casual, persuasive...) with subject line via AI. Provide topic and optional subject/tone.

AI Error Explain: Explain an error message with AI.

AI Extract: Extract entities, keywords and a summary from text via AI, returned as structured JSON.

AI FAQ: Generate FAQ from a topic with AI.

AI Grammar: Check and fix grammar with AI.

AI Headline: Generate a headline with AI.

AI Interview Q: Generate interview questions with AI.

AI JSON Schema: Generate JSON Schema from plain description.

AI Language: Language detection and translation with AI.

AI Meeting Notes: Generate meeting notes with AI.

AI Mock: Generate mock data with AI.

x402-ai-name-gen: [下架·不上架] 重复服务 Brand/project name ideas.

AI Naming: Generate names with AI.

AI Outline: Generate an outline with AI.

AI Product Desc: Generate product descriptions with AI.

AI Prompt Optimize: Improve your AI prompts for better output.

AI Readme: Generate a README with AI.

AI Regex: Generate a regex from a natural-language description.

AI Rewrite: Rewrite in any tone: professional, casual, concise.

AI SEO Meta: Generate SEO meta tags with AI.

AI Social Bio: Generate a social bio with AI.

AI SQL: Generate SQL from natural language with AI.

AI Summarize: Summarize a text with AI.

AI Tagline: Creative taglines & slogans for any product.

x402-ai-tests: Unit tests from code.

AI Translate: Translate text with AI.

AI Tweet: Generate a tweet with AI.

AI Tweet Thread: Generate a tweet thread with AI.

AI Web Analyze: Analyze a web page with AI.

Aliquot Sequence: Aliquot sequence of a number.

Aliquot Sum: Sum of proper divisors (aliquot sum).

Allowance Scan: Scan token allowances and approvals.

Amicable Pair: Check if two numbers are an amicable pair.

Analogous: Check if two ratios are proportional.

Angle Unit: Convert between angle units.

Angular Velocity: Angular velocity calculation.

Annualized Return: Annualized return calculation.

Annuity Fv: Future value of an annuity.

Annuity Pv: Annuity Pv

Annulus Area: Area of an annulus (ring).

Answer Score: Score an answer against expected keywords.

API Key Detect: Detect exposed API keys in text.

API Review: Review API design. 🆓 5 free trial calls per signed wallet

Area: Convert an area value between square meters, square kilometers, hectares, acres, and square feet. Provide value and from/to units (e.g. from=ha,to=m2).

Area Size: Convert between area units.

Arithmetic Series: Arithmetic series terms.

Arithmetic Series Sum: Sum of an arithmetic series.

Aspect Ratio: Aspect ratio calculation.

Aspect Ratio Calc: Aspect Ratio Calc

Asset Turnover: Asset Turnover

x402-assistant: 平台自营 x402 导购——agent 付 USDC 用自然语言描述需求，返回匹配的可用服务推荐（含 id/价格/理由）。

Astronomical Unit: Astronomical Unit

Atm To Pascal: Convert atm to pascal.

Atom Parse: Atom Parse

Atr: Calculate Average True Range (ATR), a volatility indicator. Provide high/low/close price arrays and an optional period (default 14).

Autocorrelation: Autocorrelation

Avatar Generate: Avatar Generate

Avg Sentence Length: Length of avg sentence.

Avg Word Length: Length of avg word.

Avogadro: Return Avogadro's constant (6.02214076 x 10^23), the number of constituent particles in one mole of a substance.

Banner Grab: Banner Grab

Bar To Psi: Convert bar to PSI.

Barcode: Generate a barcode image URL from text via the tec-it renderer. Provide text plus optional format (default code128) and size; returns a PNG render URL.

Barcode Generate: Barcode Generate

Base32: Base32 encode/decode.

Base58: Base58 encode/decode.

Base64: Encode/decode base64 strings.

Base64 Decode: Base64 Decode

Base64url: Base64url

Bearing: Calculate the initial bearing (compass direction in degrees 0-360) between two GPS coordinates given lat1/lon1 and lat2/lon2.

Bell Number: Bell Number

Beta Levered: Beta Levered

Beta Unlevered: Beta Unlevered

Bfs: Breadth-first search on a graph.

Bias Detect: Detect bias in text.

BIC Lookup: Look up a bank BIC/SWIFT code.

Bigram Similarity: Bigram Similarity

Bigrams: Split text into consecutive two-word pairs (bigrams), lowercased. Provide text or input; returns the list of bigrams.

BIN Lookup: Look up a bank card BIN (issuer, type, country).

Binary Search: Binary search a sorted array.

Binomial: Calculate the binomial coefficient C(n,k) — the number of ways to choose k items from n. Provide n and k (both >=0).

Binomial Coefficient: Binomial Coefficient

Binomial Pascal Row: Binomial Pascal Row

Binomial Pmf: Binomial Pmf

Birthstone: Birthstone

Bisection Method: Bisection Method

Bit And: Perform a bitwise AND operation between two integers. Provide a and b; returns a & b.

Bit Clear: Bit Clear

Bit Count: Count set bits in a number.

Bit Length: Length of bit.

Bit Not: Perform a bitwise NOT operation on an integer. Provide value; returns the bitwise complement (~value).

Bit Or: Perform a bitwise OR operation between two integers. Provide a and b; returns a | b.

Bit Set: Set a specific bit in an integer to 1. Provide value and bit index; returns the integer with that bit set.

Bit Shift Left: Bit Shift Left

Bit Shift Right: Bit Shift Right

Bit Toggle: Bit Toggle

Bit Unsigned Shift Right: Bit Unsigned Shift Right

Bit Xor: Perform a bitwise XOR operation between two integers. Provide a and b; returns a ^ b.

Black Scholes Call: Black Scholes Call

Black Scholes Put: Black Scholes Put

Block Explorer: Blockchain block and transaction explorer.

Block Fee: Block Fee

Block Number: Block Number

BMI: Calculate Body Mass Index.

Bollinger Bands: Bollinger Bands

Boltzmann: Boltzmann

BOM Check: Check for a UTF-8 BOM in text.

Bond Convexity: Bond Convexity

Bond Duration: Bond Duration

Bond Price: Bond Price

Bond Yield: Bond Yield

Book Value Per Share: Book Value Per Share

x402-bounties: Cross-platform bounty aggregator. 🆓 5 free trial calls per signed wallet

Box Volume: Volume of box.

Boyle Law: Law of boyle.

Break Even: Break Even

x402-bridge-quote: Estimate a cross-chain bridge fee from gas costs (honest gas-based estimate, not a live protocol quote). Provide fromChain, toChain, optional amount.

Brotli Compress: Brotli Compress

Browser Scrape: Fetch a public URL and return the full raw HTML page source — for agents that need the complete page, not just extracted text. SSRF-guarded.

x402-bson: 手写 BSON（MongoDB 二进制 JSON）编码/解码（无外部依赖）。encode 输出 base64，decode 输入 base64 → JSON。

Bubble Sort: Bubble Sort

Byte Count: Count bytes in a string.

Bytecode Size: Bytecode Size

Cagr: Calculate Compound Annual Growth Rate (CAGR) as a percentage. Provide start value, end value, and number of years.

Calendar Weeks: Calendar Weeks

Calories To Joules: Convert calories to joules.

Camel Split: Camel Split

Cap Rate: Calculate the capitalization rate (cap rate) for real estate: NOI divided by property value, as a percentage. Provide noi and value.

Capacitance: Capacitance

Capacitance Energy: Energy of capacitance.

Capacitive Reactance: Capacitive Reactance

Capital City: Capital City

Captcha Solve: reCAPTCHA v2/v3, hCaptcha, Turnstile. Paid per call via x402 in USDC on Base. No free trial — every call spends a prepaid solver balance.

Card Validator: Validate a credit card number (Luhn).

Carmichael Function: Carmichael Function

Cartesian Product: Product of cartesian.

Case: Convert string case — camel, snake, kebab, title.

Cash Conversion Cycle: Cash Conversion Cycle

Cat Fact: Fetch a random cat fact from the catfact.ninja API. No input needed; returns a fun fact and its length.

Catalan Number: Catalan Number

Catalan Series: Catalan number series.

x402-cbor: 手写 CBOR（RFC 8949）编码/解码（无外部依赖）。encode 输出 base64，decode 输入 base64 → JSON。

Celo: Celo blockchain data.

Celsius To Fahrenheit: Convert Celsius to Fahrenheit.

Celsius To Kelvin: Convert Celsius to Kelvin.

Centripetal Force: Centripetal force calculation.

Cert Expiry: Check SSL certificate expiry date.

Chain Compare: Compare live gas price and block height across multiple chains (base, ethereum, optimism, arbitrum) in one call via public RPC.

Chain ID: Look up a blockchain chain ID.

Chain Info: Live block height + gas for ETH/Base/Polygon. 🆓 5 free trial calls per signed wallet

x402-chain-registry: Chain metadata registry. 🆓 5 free trial calls per signed wallet

Changelog Gen: Generate a changelog.

Char Codes: Character codes (ASCII/Unicode).

Char Count: Count characters in a string.

Char Diversity: Character diversity of a string.

Character Count: Count characters in a string.

Charles Law: Charles law (gas volume vs temperature).

Charset Detect: Detect text character encoding.

Chebyshev: Chebyshev polynomials.

Chebyshev Distance: Chebyshev distance between points.

Chebyshev Inequality: Chebyshev Inequality

Chess Move: Compute a chess move for a given board.

Chi Square Stat: Chi Square Stat

Chinese New Year: Chinese New Year

Chinese Remainder: Chinese Remainder

Chinese Zodiac: Chinese Zodiac

Chuck Norris: Chuck Norris

Chunk: Split an array into chunks of a given size. Provide values array and optional size (default 2); returns array of sub-arrays.

CIDR: Compute network, broadcast, netmask and usable-host count from a CIDR block (e.g. 192.168.1.0/24) with validation.

CIDR To Range: Convert cidr to range.

Circle Arc Length: Length of circle arc.

Circle Area: Area of circle.

Circle Circumference: Circle Circumference

Circle Sector Area: Area of circle sector.

Circle Segment Area: Area of circle segment.

Clamp: Clamp a numeric value to a range. Provide value plus min and/or max; returns the value bounded within [min, max].

Cm To Inches: Convert cm to inches.

Cname Lookup: Cname Lookup

x402-code-diagnose: Code diagnosis: syntax check + 9 bug patterns

Code Pipeline: Code pipeline — build, test, and deploy helpers.

Code Points: Code Points

Coeff Variation: Coeff Variation

Coefficient Of Variation: Coefficient Of Variation

Cohens D: Calculate Cohen's d effect size between two groups. Provide group1 and group2 arrays; measures how far two means differ in standard deviations.

Collapse Spaces: Collapse Spaces

Collatz: Generate the Collatz sequence for a positive integer n. Provide n; returns the sequence until it reaches 1.

Color: Color utilities — convert, blend, and manipulate colors.

Color Blend: Color Blend

Color Converter: Color Converter

Color Name: Color Name

Color Palette: Generate color palettes. 🆓 5 free trial calls per signed wallet

Color Shade: Color Shade

Color Temperature: Temperature of color.

Color Tint: Color Tint

Combination Count: Combination Count

Combinations: Combinations

Common Prefix: Common Prefix

Common Suffix: Common Suffix

Company Check: Company check — registration, reputation, and risk.

Compass Direction: Compass Direction

Competitor Tech: Competitor tech stack analysis.

Complementary: Complementary

Complex Add: Complex Add

Complex Angle: Complex Angle

Complex Conjugate: Complex Conjugate

Complex Div: Complex Div

Complex Magnitude: Complex Magnitude

Complex Mul: Complex Mul

Complex Sub: Complex Sub

Compound: Compound interest calculator.

Compound Interest: Compound Interest

Concentration: Concentration

Cone Frustum Volume: Volume of cone frustum.

Cone Surface: Surface area of cone.

Cone Volume: Volume of cone.

Confidence Interval Mean: Mean of confidence interval.

Confusion Matrix: Confusion Matrix

x402-connect4-move: Minimax connect-four move (per turn, alpha-beta)

Connected Components: Connected Components

Constant Time Equal: Constant time equal.

Contains Any: Contains Any

Content Score: Score content quality.

Content Studio: Summarize+SEO+grammar+stats+slug. 5-in-1.

Content Type: Content Type

Content Word Ratio: Ratio of content word.

Continued Fraction: Continued Fraction

Contract Scan: Scan a smart contract for vulnerabilities.

Contract Triage: Smart contract triage — quick risk assessment.

Contrast Ratio: Ratio of contrast.

Coreference: Coreference

Correlation: Correlation

Correlation Coefficient: Correlation Coefficient

Cors Check: Cors Check

Cosine Similarity: Cosine Similarity

Coulomb Constant: Constant coulomb.

Count By: Count occurrences of each distinct value in an array. Provide values; returns a frequency map of value to count.

Count Emoji: Count emoji.

Countdown: Countdown

Counting Sort: Counting Sort

x402-country: Country by ISO code. 🆓 5 free trial calls per signed wallet

Country Brief: Country brief — economy, regulation, and market.

Country Code: Country Code

Covariance: Covariance

Covariance Matrix: Covariance Matrix

Covariance Sample: Covariance Sample

Crates Package Info: Crates Package Info

Credit Card Type: Credit Card Type

Credit Card Validate: Credit Card Validate

Cron: Cron expression utilities — parse and describe schedules.

Cron Humanize: Cron Humanize

Cron Next: Cron Next

Cron Parse: Cron Parse

Cron Validate: Cron Validate

x402-cron-validator: 标准 5 字段 cron 表达式校验（min hour dom mon dow）：支持 * / range , step。返回字段展开摘要。纯解析器，无外部依赖。

Cross Product2d: Cross Product2d

Crypto: Crypto market data.

Crypto Brief: Crypto brief in one call: coin prices (optional), fear-and-greed index and gas. Provide optional coins list (default bitcoin,ethereum).

Crypto Fiat: Crypto Fiat

Crypto Pack: Crypto data pack — prices, on-chain, and market signals.

Crypto Price: Current crypto price (CoinGecko).

Crypto Trending: Trending cryptocurrencies.

Csp Parse: Csp Parse

CSV Build: Build a CSV from data.

CSV Filter: CSV Filter

CSV Headers: CSV Headers

CSV JSON: Convert CSV data to JSON. 🆓 5 free trial calls per signed wallet

CSV Parse: Parse a CSV string.

CSV Sort: Sort CSV data by a specified column. Provide csv text and column (or col); optional order=desc for descending.

CSV Stats: Compute statistics on CSV data.

Cube Diagonal: Face diagonal of a cube.

Cube Series: Cube number series.

Cube Space Diagonal: Space diagonal of a cube.

Cube Surface: Surface area of a cube.

Cube Volume: Volume of a cube.

Cuboid Diagonal: Space diagonal of a cuboid.

Cum Product Array: Cumulative product array.

Cum Sum Array: Cumulative sum array.

Cumulative Max: Cumulative maximum of an array.

Cumulative Min: Cumulative minimum of an array.

Cumulative Product: Cumulative product of an array.

Cumulative Sum: Cumulative sum of an array.

Cups To Ml: Convert cups to ml.

Currency By Country: Currency By Country

Currency Code: Currency Code

Currency Convert: Convert between currencies.

Currency Format: Currency Format

Currency List: Currency List

Currency Rate: Currency Rate

Current Ratio: Ratio of current.

Current Yield: Current Yield

Cve Lookup: Cve Lookup

Cvss Score: Cvss Score

Cwe Lookup: Cwe Lookup

Cylinder Lateral Surface: Surface area of cylinder lateral.

Cylinder Surface: Surface area of cylinder.

Cylinder Volume: Volume of cylinder.

Dad Joke: Fetch a random dad joke from icanhazdadjoke.com. No input needed; returns the joke text.

Data: Convert a data size between bytes, KB, MB, GB, TB. Provide value and from/to units (e.g. from=MB,to=GB).

Data Agent: AI data lookup: ask any question, get facts + sources.

Data Enrich: Enrich company/domain/person with web data + AI.

Data Size: Convert between data size units (KB, MB, GB).

Data Size Humanize: Data Size Humanize

Data Transfer: Data Transfer

Data Transform: Transform data between formats.

Date: Date utilities — format, parse, and compare.

Date Diff: Date Diff

Date Math: Date arithmetic and formatting. 🆓 5 free trial calls per signed wallet

Date To Epoch: Convert date to epoch.

Date To Unix: Convert a date to Unix timestamp.

Date Trivia: Date Trivia

Day Name Full: Day Name Full

Day Name Short: Short name of a day of week.

Day Of Week: Get the day of week for a date.

Day Of Year: Day Of Year

Daylight Savings: Daylight Savings

Days Between: Days Between

Days In Month: Days In Month

Days In Month Year: Days In Month Year

Days In Quarter: Days In Quarter

Days In Year: Days In Year

Days Sales Outstanding: Days Sales Outstanding

Days Since: Days Since

Days Until: Days Until

Debt Service Coverage: Debt Service Coverage

Debt To Equity: Convert debt to equity.

Decay Constant: Constant decay.

Decile: Calculate a decile of a dataset. Provide values array and decile (1-10); returns the value at that decile boundary.

Decimal To Dms: Convert decimal to dms.

Decimal To Fraction: Convert decimal to fraction.

Decrease By Percent: Decrease By Percent

Decrypt Aes256gcm: Decrypt Aes256gcm

Dedent: Remove common leading whitespace from every line of multi-line text. Provide text or input; useful for cleaning indented code blocks.

Dedent Lines: Dedent Lines

Dedupe: Remove duplicate values from an array. Provide values; returns the array with unique elements preserved in order.

DEFI Brief: DeFi brief — protocols, yields, and risks.

DEFI Directory: Curated DeFi protocols. 🆓 5 free trial calls per signed wallet

x402-defi-tvl: Top 20 DeFi chains by total value locked (TVL) from DefiLlama — chain name, TVL, and token symbol.

Deficient Numbers: Deficient Numbers

Deflate Compress: Deflate Compress

Deg To Rad: Convert deg to rad.

Degrees To Radians: Convert degrees to radians.

Density: Calculate density: mass divided by volume. Provide mass and volume values.

Depreciation: Depreciation

Derangement Count: Derangement Count

Dev Pack: Architecture plan+GitHub repos. AI-augmented.

Dex Arb: Scan DEXes for arbitrage opportunities.

DEX Liquidity Depth: Slippage estimate for large orders across DEX pools.

Dex Price: Token price from GeckoTerminal. 🆓 5 free trial calls per signed wallet

Dex Scanner: Scan DEXes for new pairs and liquidity.

Dfs: Perform depth-first search traversal on an undirected graph. Provide edges (list of [a,b] pairs) and optional start node; returns traversal order.

Diff Array: Diff Array

Difference: Difference

Digit Count: Digit Count

Dilution: Calculate the final concentration after dilution. Provide initialConcentration, initialVolume, and finalVolume.

Discount: Discount and percentage calculators.

Discount Calc: Discount Calc

Discounted Payback: Discounted Payback

Distance: Convert between distance units.

Distance To Horizon: Convert distance to horizon.

Distance2d: Distance2d

Distance3d: Distance3d

Dividend Payout: Dividend Payout

Dividend Payout Ratio: Ratio of dividend payout.

Dividend Yield: Dividend Yield

Dkim Check: Dkim Check

Dmarc Check: Dmarc Check

Dms To Decimal: Convert dms to decimal.

x402-dns: A, AAAA, MX, TXT, NS, CNAME. 🆓 5 free trial calls per signed wallet

DNS All: Full DNS lookup — all record types.

DNS Lookup: Resolve DNS records: A, AAAA, MX, TXT, NS, CNAME, SOA, PTR. 🆓 5 free trial calls per signed wallet

DNS Record: DNS Record

DNS Reverse: DNS Reverse

Dockerfile Lint: Dockerfile Lint

Domain Age: Domain Age

Domain Audit: Domain audit — ownership, DNS, and security.

Domain Due Diligence: Domain due diligence — ownership, reputation, risk.

Domain Expiry: Domain Expiry

Domain Intel: Combined domain check: SSL cert validity (issuer, expiry, days remaining) + HTTP headers. Two checks, one call. $0.005/call, 5 free trials.

Domain Report: Domain report — WHOIS, DNS, SSL, and reputation.

Doppler Frequency: Frequency of doppler.

Doubling Time: Doubling Time

Drawdown: Calculate the drawdown series of an asset's price: the percentage decline from its running peak. Provide values array.

Duplicate Lines: Duplicate Lines

Duration: Format and parse time durations.

Duration Human: Format a duration in human terms.

Duration Humanize: Humanize a duration.

Duration ISO: Format a duration as ISO 8601.

EAN: Validate EAN barcodes.

EAN Validate: Validate an EAN barcode.

Ean13 Check: Ean13 Check

Earnings Yield: Earnings Yield

Earth Gravity: Earth gravitational constant.

Earth Mass: Earth mass constant.

Earth Radius: Earth radius constant.

Easter Date: Compute the Easter date for a year.

Ecb Rates: European Central Bank exchange rates.

Ecosystem Health: Live ecosystem metrics. 🆓 5 free trial calls per signed wallet

Editorconfig: Generate an EditorConfig file.

Effect Size: Effect size (Cohen d).

Efficiency: Efficiency calculation.

Egyptian Fraction: Egyptian fraction decomposition.

Elapsed Time: Elapsed time between two moments.

Electric Power: Electric power calculation (P=VI).

Electron Mass: Electron mass constant.

Elementary Charge: Elementary Charge

Elevation: Elevation

Ellipse Area: Area of ellipse.

Ellipse Circumference: Ellipse Circumference

Ellipsoid Volume: Volume of ellipsoid.

EMA: Calculate the Exponential Moving Average (EMA) of a price series. Provide values array and optional period (default 14).

x402-email: Validate an email address: format check, domain MX-record presence and disposable-email detection. Free — no key or SMTP needed.

Email Report: Email address report — verification and reputation.

Email Security: Email security checks — spoofing, DMARC, SPF.

x402-email-validator: Email 语法校验（RFC 5322 近似）+ 顶级域/长度检查。纯正则，不查送达、不发信。

Email Verify: Verify email validity. 🆓 5 free trial calls per signed wallet

Emoji: Emoji utilities — lookup, convert, and search.

Empirical Rule: Empirical Rule

Encrypt Aes256gcm: Encrypt Aes256gcm

End Of Day: End Of Day

Ends With Any: Ends With Any

Ends With Vowel: Ends With Vowel

Energy: Convert an energy value between joules, kilojoules, calories, kilocalories, watt-hours, kWh, BTU, and electronvolts. Provide value and from/to units.

Engineering Notation: Engineering Notation

Ens Avatar: Ens Avatar

Ens Records: Ens Records

x402-ens-resolve: ENS to ETH address. 🆓 5 free trial calls per signed wallet

Enterprise Value: Enterprise value calculation.

Entity Link: Entity Link

Entity Lookup: Look up an entity (company, person, token).

Entropy: Calculate the Shannon entropy of a dataset. Provide values array; measures the information or randomness.

Epoch To Date: Convert epoch to date.

Eps: Calculate Earnings Per Share: net income divided by number of shares. Provide netIncome and shares.

Erc1155 Info: Erc1155 Info

x402-erc20-info: ERC20 name/symbol/decimals

Erc721 Info: Erc721 Info

x402-erc8004: ERC-8004 agent identity (registration-v1) + onchain nonce query

Escape HTML: Escape HTML

Escape JSON: Escape JSON

Escape Regex: Escape Regex

Escape Special Chars: Escape Special Chars

Escape Velocity: Velocity of escape.

Eslint Config: Eslint Config

Estimate Gas: Estimate Gas

Eth Recover: Eth Recover

Eth Sign: Sign a message with an Ethereum private key using EIP-191 (personal_sign). Provide message and privateKey; returns the signature.

Eu Brief: EU market brief — 4 European equity indices (price + % change), the ECB's daily reference rates for USD, GBP, CHF, JPY and CNY, and the latest ECB press releases, speeches and interviews. No inputs, one call.

Eu Data Check: GDPR, EU AI Act, DMA, DSA quick assessment.

Eu Indices: EU stock indices.

Euler: Return Euler's number e (2.71828...), the base of natural logarithms. No input needed.

Euler Phi: Euler Phi

Euler Totient: Euler Totient

Ev Ebitda: Ev Ebitda

Even Series: Series of even.

x402-event-decode: Decode ERC20 Transfer/Approval events from an Ethereum transaction receipt into readable entries (from, to, amount). Provide a txHash.

EVM Opcodes: EVM Opcodes

Expected Value: Expected Value

Exponential Pdf: Exponential Pdf

Exponential Smoothing: Exponential Smoothing

Extended Gcd: Extended Gcd

Extract Emails: Extract email addresses from text.

Extract Initials: Extract initials.

Extract Numbers: Extract numbers.

Extract Urls: Extract URLs from text.

Extrapolation: Extrapolation

F1 Score: Calculate the F1 score (harmonic mean of precision and recall) from actual and predicted labels. Provide yTrue and yPred arrays.

Fact Check: Fact Check

Factorial Series: Series of factorial.

Fahrenheit To Celsius: Convert fahrenheit to celsius.

Faraday Constant: Constant faraday.

Farcaster Profile: Farcaster Profile

Favicon Fetch: Favicon Fetch

Fear Greed: Crypto market sentiment: Fear-and-Greed index (0-100) with classification from alternative.me.

Fee Estimate: Fee Estimate

Fee History: Last N blocks base fee + priority fee. 🆓 5 free trial calls per signed wallet

Feed Monitor: Monitor a feed for changes.

Feed Normalize: Feed Normalize

Feet To Meters: Convert feet to meters.

x402-fetch: Fetch a page safely: returns raw HTML, HTTP status and extracted links with SSRF protection. Not a rendered browser view.

Fibonacci: Fibonacci numbers.

Fibonacci Index: Fibonacci Index

Fibonacci N: Fibonacci N

Fibonacci Retracement: Fibonacci Retracement

Fibonacci Series: Series of fibonacci.

File Ext Info: File Ext Info

File Size Humanize: File Size Humanize

Finance Suite: Finance suite — valuation, ratios, and analysis.

Find: Keyword search over the live x402 service catalogue, returning matching service ids, names, endpoints and prices. Supports q (query) and limit (1-20).

Find Max: Find the maximum value in an array. Provide values array; returns the largest element.

Find Max Index: Find max index.

Find Min: Find the minimum value in an array. Provide values array; returns the smallest element.

Find Min Index: Find min index.

First N Lines: First N Lines

Fiscal Quarter: Fiscal Quarter

Fiscal Year: Fiscal Year

Five Number Summary: Five-number summary of a dataset.

Flatten: Flatten a nested array to a given depth. Provide values and optional depth (default fully flat).

Force: Calculate force in physics: mass multiplied by acceleration. Provide mass and acceleration values.

Force Unit: Force of unit.

Forex: Forex exchange rates.

Formality Score: Formality Score

Format Binary: Format binary.

Format Bits: Format bits.

Format Bytes: Format bytes.

Format Compact: Format compact.

Format Currency: Format currency.

Format D D M M Y Y Y Y: Format a date as DDMMYYYY.

Format Date: Format date.

Format Decimal: Format decimal.

Format Fixed: Format a number with fixed decimals.

Format Hex Num: Format a number as hex.

Format Integer: Format an integer.

Format M M D D Y Y Y Y: Format a date as MMDDYYYY.

Format Octal Num: Format a number as octal.

Format Ordinal Suffix: Add an ordinal suffix to a number.

Format Percent: Format a number as a percentage.

Format Roman Num: Format a number as Roman numerals.

Format Scientific: Format a number in scientific notation.

Format Significant: Format a number with significant figures.

Format Thousands: Format thousands.

Format Time12: Format time in 12-hour notation.

Format Time24: Format time in 24-hour notation.

Format Y Y Y Y M M D D: Format y y y y m m d d.

Fraction To Percent: Convert a fraction to a percentage.

Free Cash Flow: Free Cash Flow

Frequency: Frequency and period calculation.

Frequency Unit: Frequency of unit.

From Binary: From Binary

From Hex: Convert a hexadecimal string to a decimal integer. Provide value as hex (e.g. 'ff'); returns the decimal number.

From Octal: From Octal

From Roman: From Roman

From Unicode: From Unicode

Frustum Volume: Volume of frustum.

x402-funding-rate: Perpetual funding rates. 🆓 5 free trial calls per signed wallet

Future Value: Future Value

Fx Snapshot: Forex snapshot — live rates across currencies.

Gallons To Liters: Convert gallons to liters.

Gas: Gas prices across 5 chains. 🆓 5 free trial calls per signed wallet

Multi-chain Gas Compare: Compare live gas across chains, find cheapest.

Gas Constant: Constant gas.

Gas Now: Current gas price (gwei) for a chain (default base) via direct RPC with timestamp.

Gas Optimizer: Optimize gas for transactions.

Gas Price: Gas price across chains.

Gas Priority: Gas Priority

Gas Time: Current gas price and latest block timestamp for a chain (default base) via direct RPC.

Gas Tracker: Track gas prices over time.

Gas Trend Analysis: Multi-block gas fee trend and timing suggestion.

Gb To Mb: Convert gb to mb.

Geo Bounding: Geo Bounding

Geo Distance: Distance between geo.

Geocode: Geocode a place name or address to coordinates using OpenStreetMap Nominatim. Provide query or address; returns latitude and longitude.

Geometric Mean: Mean of geometric.

Geometric Pmf: Geometric Pmf

Geometric Series: Series of geometric.

Geometric Series Sum: Sum of geometric series.

Gini Coefficient: Gini Coefficient

Github Trending: GitHub trending repositories.

Gitignore Gen: Gitignore Gen

Goldbach Pairs: Goldbach Pairs

Golden: Return the golden ratio (1.61803...). No input needed.

Golden Ratio: Ratio of golden.

Gradient Generate: Gradient Generate

Grams To Ounces: Convert grams to ounces.

Graph Degrees: Graph Degrees

Graph Edge Count: Graph Edge Count

Graph Vertex Count: Graph Vertex Count

Graphql Introspect: Graphql Introspect

Gravatar: Generate Gravatar URLs from email.

Gravatar URL: Gravatar URL

Gravitational Constant: Constant gravitational.

Gravitational Force: Force of gravitational.

Gray Code: Gray Code

Grayscale: Grayscale

Grep Lines: Grep Lines

Gross Margin: Gross Margin

Group By: Group array items by a key. Provide values array and key field; returns an object mapping key values to arrays of items.

x402-guardian: Security guardian service. 🆓 5 free trial calls per signed wallet

x402-guess-number: Bulls-and-cows solver from guess history

Gzip Compress: Gzip Compress

Gzip Decompress: Gzip Decompress

Hailstone Length: Length of hailstone.

Hailstone Max: Maximum of hailstone.

Half Life: Half Life

Hallucination Check: Hallucination Check

Hamming: Calculate the Hamming distance between two equal-length strings (number of positions where characters differ). Provide a (or text) and b (or other).

Hamming Weight: Weight of hamming.

x402-handbook: The x402 Agent Handbook (PDF, ~59KB) — the full guide to the x402 protocol, agent

Hapax Legomena: Hapax Legomena

Harmonic Mean: Mean of harmonic.

Harmonic Number: Harmonic Number

Harmonic Series: Series of harmonic.

Has Emoji: Has Emoji

Has Repeated Char: Has Repeated Char

Hash: Compute hash digests (SHA256, MD5, etc.).

Hash File: Hash File

x402-hash-generator: 哈希生成——node crypto 支持 sha256/sha1/md5/sha512/ripemd160，输出 hex（或 base64）。纯内置。

Haveibeenpwned: Haveibeenpwned

Heap Sort: Heap Sort

Hectares To Acres: Convert hectares to acres.

Hemisphere Surface: Surface area of hemisphere.

Hemisphere Volume: Volume of hemisphere.

x402-hex: Hex 编解码——text→hex 编码，或 hex→utf8 解码。纯内置，无外部依赖。

Hex Decode: Hex Decode

Hex Encode: Hex Encode

Hex To Hsl: Convert hex to hsl.

Hex To Rgb: Convert a hex color to RGB.

Highest Bit: Highest Bit

Hn Top: Hacker News top stories.

Holding Period Return: Holding Period Return

Horsepower To Watts: Convert horsepower to watts.

Hours Between: Hours Between

Hsts Check: Hsts Check

HTML Entity: Encode/decode HTML entities.

HTML Table Extract: HTML Table Extract

HTML Text Extract: HTML Text Extract

x402-html-to-markdown: Convert HTML to Markdown

x402-html-validate: HTML tag matching + accessibility checks

x402-http-analyze: HTTP header analysis. 🆓 5 free trial calls per signed wallet

HTTP Codes: HTTP Codes

HTTP Headers: Parse and analyze HTTP headers.

HTTP Methods: HTTP Methods

HTTP Status: Look up HTTP status codes.

x402-hyperliquid-account: Hyperliquid perpetual account state for any address — account value, total notional position, margin used, maintenance margin, withdrawable balance, and the raw open positions. Public on-chain data: pass any 0x address you want to inspect, including your own, a counterparty's, or a whale's.

x402-hyperliquid-book: Hyperliquid L2 order book for one perpetual, with derived microstructure a trading agent actually uses — best bid/ask, spread in ticks and basis points, midpoint, and bid/ask depth imbalance over the requested levels. Thin books and lopsided depth are how you spot a bad fill before you send it.

x402-hyperliquid-candles: Hyperliquid perpetual OHLCV candles for any listed coin, with trend statistics computed for you (first/last close, percent change, high, low, average volume, direction). Interval: 1m, 5m, 15m, 1h, 4h, 1d. Use it for momentum, breakout and mean-reversion checks on perps.

x402-hyperliquid-funding: Hyperliquid funding-rate history for one perpetual, with the summary a carry trade needs (current rate, mean, annualized mean, min/max, share of positive periods, direction of drift). Funding is paid hourly and is the main cost of holding a perp, so this is the number that decides whether a position is worth keeping.

x402-hyperliquid-mids: Every Hyperliquid mid price in one call — the cheapest way to price a whole portfolio or screen the exchange. Returns plain perp coins (BTC, ETH, ...) and, separately, Hyperliquid's numbered outcome markets (keys like "#12090"), which are its on-chain prediction markets. Optional case-insensitive substring filter, e.g. {"filter":"sol"}.

x402-hyperliquid-perps: Hyperliquid perpetual futures overview across every listed perp — mark/oracle/mid price, hourly funding rate, open interest, 24h notional volume, max leverage. Sortable by volume, open interest, funding or leverage. One call gives a perp trading agent the full board before it commits capital.

x402-hyperliquid-predicted-funding: Predicted funding rates for the same coin across venues (Hyperliquid, Binance, Bybit and others), annualized so they are comparable despite different funding intervals, with the spread between the cheapest and richest venue. This is the cross-exchange funding arbitrage signal: long where funding is lowest, short where it is highest.

IBAN Validate: IBAN Validate

Ideal Gas: Ideal Gas

Ideal Gas Pressure: Pressure of ideal gas.

Implementation Address: Implementation Address

Impulse: Calculate impulse in physics: force multiplied by time. Provide force and time values.

Inches To Cm: Convert inches to cm.

Increase By Percent: Increase By Percent

Indent: Indent each line of text by a number of spaces. Provide text and optional spaces (or n); returns indented text.

Indent Lines: Indent Lines

Inductive Reactance: Inductive Reactance

Infinite Geometric Sum: Sum of infinite geometric.

Inflation Adj: Deflate: convert a FUTURE nominal amount into today's purchasing power (value / (1+rate)^years). Opposite of x402-inflation-adjust. Returns direction=deflate.

Inflation Adjust: Inflate: project a PRESENT amount forward to a future nominal value (value * (1+rate)^years). Opposite of x402-inflation-adj. Returns direction=inflate.

Initialism: Initialism

Initials Avatar: Initials Avatar

Insert Newlines: Insert Newlines

Insertion Sort: Insertion Sort

Insider Alert: Insider trading alerts.

Int To IP: Convert int to ip.

x402 Integration White-Box Audit: AI white-box audit of your x402 payment integration source (JS/Py/Go) against the x402 Payment Security Checklist v2 — payment verification, replay, delivery races, allowance, custody, denial. status=needs-confirmation findings.

Interest Coverage: Interest Coverage

Interior Angle Sum: Sum of interior angle.

Interpolate: Interpolate

Interpolation: Interpolation

Interquartile Mean: Mean of interquartile.

Intersect: Intersect

Inventory Turnover: Inventory Turnover

Inverse Lerp: Inverse Lerp

IP Geo: IP geolocation — country, city, and coordinates.

IP Geolocation: IP Geolocation

IP Info: IP geolocation and validation via ipwho.is: country, city, region, ISP, timezone, plus version and private/reserved detection.

x402-ip-lookup: IP: country, city, ISP. 🆓 5 free trial calls per signed wallet

IP Report: IP address report — geo, ASN, and threat intel.

IP To Int: Convert ip to int.

Ipo Watch: IPO watchlist and calendar.

Iqr: Calculate the interquartile range (IQR) of a dataset. Provide values array; returns Q3 minus Q1 (75th minus 25th percentile).

IRR Calc: Calculate the Internal Rate of Return (IRR) from a cashflow series. Provide cashflows or flows as an array (e.g. [-1000,300,300,300,300]); returns the rate.

Is Abundant: Is Abundant

Is Achilles: Is Achilles

Is Achilles Number: Is Achilles Number

Is Afternoon: Is Afternoon

Is Alpha: Check whether a string contains only alphabetic letters (a-z, A-Z). Provide value; returns true if purely alphabetic.

Is Alphanumeric: Is Alphanumeric

Is Approximately: Is Approximately

Is Armstrong: Is Armstrong

Is Automorphic: Is Automorphic

Is Automorphic Number: Is Automorphic Number

Is Base64: Is Base64

Is Between: Is Between

Is Binary: Is Binary

Is Bipartite: Is Bipartite

Is Bit Set: Is Bit Set

Is Brilliant: Is Brilliant

Is Business Day: Is Business Day

Is Camel Case: Is Camel Case

Is Carmichael: Is Carmichael

Is Circular Prime: Is Circular Prime

Is Close To: Convert is close to .

Is Complete Graph: Is Complete Graph

Is Congruent: Is Congruent

Is Coprime Pair: Is Coprime Pair

Is Credit Card: Is Credit Card

Is Credit Card Valid: Is Credit Card Valid

Is Cullen: Is Cullen

Is Date Valid: Is Date Valid

Is Deficient: Is Deficient

Is Deficient Num: Is Deficient Num

Is Deficient Number: Is Deficient Number

Is Disarium: Is Disarium

Is Disarium Number: Is Disarium Number

Is Domain: Is Domain

Is Dst: Check whether a date falls in Daylight Saving Time for the local timezone. Provide optional date.

Is EAN: Validate an EAN-8, EAN-13, or EAN-14 barcode number via its check digit. Provide value; returns true for valid EANs.

Is Email: Validate an email address format (local@domain.tld). Provide value or input; returns true for valid emails.

Is Emirp: Check whether a number is an emirp: a prime whose reversal is also a different prime. Provide value.

Is Emirp Number: Is Emirp Number

Is Evening: Is Evening

Is Fermat: Is Fermat

Is Fermat Prime: Is Fermat Prime

Is Fermat Prime Num: Is Fermat Prime Num

Is Fibonacci: Is Fibonacci

Is Float: Check whether a value is a float (has a fractional part). Provide value; returns true for non-integer numbers.

Is Future: Is Future

Is Giuga: Check whether a number is a Giuga number: composite where prime factors divide n/k-1. Provide value.

Is Happy: Check whether a number is a happy number — repeatedly replace it by the sum of squares of its digits until it reaches 1 or cycles. Provide value.

Is Happy Number: Is Happy Number

Is Harshad: Is Harshad

Is Harshad Number: Is Harshad Number

Is Hex: Check whether a string contains only hexadecimal digits (0-9, a-f, A-F). Provide value.

Is Hex Color: Is Hex Color

Is Hex Color Valid: Is Hex Color Valid

Is Hexagonal: Is Hexagonal

Is Highly Abundant: Is Highly Abundant

Is Highly Composite: Is Highly Composite

Is Hostname: Is Hostname

Is IBAN: Validate an International Bank Account Number (IBAN) format and check digits. Provide value.

Is Integer: Is Integer

Is IP: Check whether a string is a valid IPv4 or IPv6 address. Provide value or input.

Is Ipv4: Validate an IPv4 address: four dot-separated octets each 0-255. Provide value or input.

Is IPV6: Validate an IPv6 address format (colon-separated hex groups). Provide value or input.

Is Isbn10: Is Isbn10

Is Isbn13: Is Isbn13

Is JSON: Validate whether a string is valid JSON. Provide value or input; returns true if it parses, false otherwise.

Is Kaprekar: Is Kaprekar

Is Kaprekar Number: Is Kaprekar Number

Is Kebab Case: Is Kebab Case

Is Latitude: Is Latitude

Is Latitude Valid: Is Latitude Valid

Is Leap Year: Is Leap Year

Is Leap Year Num: Is Leap Year Num

Is Longitude: Is Longitude

Is Longitude Valid: Is Longitude Valid

Is Lucas Prime: Is Lucas Prime

Is Luhn: Check whether a number passes the Luhn checksum (used for credit cards and IDs). Provide value.

Is Mac Address: Is Mac Address

Is Mersenne: Is Mersenne

Is Mersenne Prime: Is Mersenne Prime

Is Morning: Is Morning

Is Narcissistic: Is Narcissistic

Is Narcissistic Number: Is Narcissistic Number

Is Night: Check whether a given time or the current local time falls in night hours (21:00-05:00). Returns true if it is nighttime.

Is Numeric: Is Numeric

Is Octagonal: Is Octagonal

Is Octal: Validate whether a string consists only of octal digits (0-7). Returns true for valid octal notation like '755'.

Is Palindromic Num: Is Palindromic Num

Is Palindromic Number: Is Palindromic Number

Is Palindromic Prime: Is Palindromic Prime

Is Passport: Is Passport

Is Past: Check whether a given date or timestamp is in the past relative to now. Useful for deadline or expiry checks.

Is Pentagonal: Is Pentagonal

Is Perfect: Is Perfect

Is Perfect Num: Is Perfect Num

Is Perfect Number: Is Perfect Number

Is Phone: Check whether a string looks like a phone number (7-20 digits, optional +,-,space,parens). Provide value.

Is Port: Check whether a number is a valid network port (0-65535). Provide value.

Is Powerful: Is Powerful

Is Powerful Number: Is Powerful Number

Is Practical: Is Practical

Is Prime: Check whether a number is prime. Provide n or number; returns true for primes (2, 3, 5...) and false for composite or numbers <2.

Is Prime Pair: Is Prime Pair

Is Primitive Root: Is Primitive Root

Is Pronic: Is Pronic

Is Pronic Number: Is Pronic Number

Is Pseudoprime: Is Pseudoprime

Is Quadratic Residue: Is Quadratic Residue

Is Rgb: Validate an RGB color string like rgb(255,0,0) with each channel 0-255. Provide value.

Is Rgba: Validate an RGBA color string like rgba(255,0,0,0.5) with channels 0-255 and alpha 0-1. Provide value.

Is Routing Number: Is Routing Number

Is Safe Prime: Is Safe Prime

Is Same Day: Is Same Day

Is Same Month: Check if two dates are in the same month.

Is Same Year: Is Same Year

Is Self Dividing: Is Self Dividing

Is Semi Prime: Is Semi Prime

Is Semiperfect: Check if a number is semiperfect.

Is Slug: Check whether a string is a URL slug: lowercase alphanumeric words joined by single hyphens. Provide value.

Is Smarandache: Is Smarandache

Is Smith: Check whether a number is a Smith number: composite where digit sum equals the digit sum of its prime factors. Provide value.

Is Smith Number: Is Smith Number

Is Snake Case: Is Snake Case

Is Sophie Germain: Is Sophie Germain

Is Sorted: Is Sorted

Is Sphenic: Is Sphenic

Is Square Free: Is Square Free

Is Ssn: Validate a US Social Security Number format (###-##-####) excluding invalid ranges. Provide value.

Is Strong: Is Strong

Is Strong Password: Is Strong Password

Is SWIFT BIC: Is SWIFT BIC

Is Today: Check whether a given date is today. Provide date or value; returns true if it matches the current calendar day.

Is Triangular: Is Triangular

Is Twin Prime: Is Twin Prime

Is Twin Prime Pair: Is Twin Prime Pair

Is Ugly: Check whether a number is ugly: positive with only 2, 3, and 5 as prime factors. Provide value.

Is Ugly Number: Is Ugly Number

Is Untouchable: Is Untouchable

Is URL: Check whether a string is a valid URL. Provide value or input; returns true if it parses as a URL.

Is UUID: Validate a UUID string (8-4-4-4-12 hex format). Provide value or input.

Is Vin: Validate a 17-character Vehicle Identification Number (VIN), allowing letters A-H,J-N,P-R,Z and digits. Provide value.

Is Weekend: Is Weekend

Is Weekend Date: Is Weekend Date

Is Weird: Check whether a number is 'weird' — abundant (sum of proper divisors exceeds it) but not semi-perfect. Provide value.

Is Within Range: Is Within Range

Is Woodall: Is Woodall

ISBN: Validate ISBN numbers.

ISBN Validate: ISBN Validate

ISO To Unix: Convert iso to unix.

ISO Week: Calculate the ISO 8601 week number for a given date. Provide date; returns the week of year (1-53).

ISO Weekday: ISO Weekday

Jaccard Similarity: Jaccard Similarity

Joule To KWH: Convert joule to kwh.

Joules To Calories: Convert joules to calories.

JSON Diff: JSON Diff

JSON Flatten: JSON Flatten

JSON Format: Format and pretty-print JSON.

JSON Keys: JSON Keys

JSON Merge: JSON Merge

JSON Minify: JSON Minify

JSON Path: JSON Path

JSON Pretty: JSON Pretty

JSON Schema Validate: JSON Schema Validate

JSON Toml: JSON Toml

JSON Toolkit: JSON toolkit — validate, transform, and query.

JSON Type: JSON Type

JSON Unflatten: JSON Unflatten

JSON Validate: Validate + pretty-print JSON. 🆓 5 free trial calls per signed wallet

JSON Values: JSON Values

JSON Yaml: JSON Yaml

Julian Day: Julian Day

JWT Decode: Decode a JWT token — header, payload, and expiry.

JWT Verify: JWT Verify

Kanye Quote: Kanye Quote

Kebab Case: Kebab Case

Keccak256: Keccak256

x402-keeperhub: KeeperHub 自动化协议情报——查 keeper 网络状态。给定 keeper 地址（可选）查其注册/活跃状态，

Keyword Density: Density of keyword.

Keyword Extract: Keyword Extract

x402-keywords: Extract keywords from text. 🆓 5 free trial calls per signed wallet

Kg To Pounds: Convert kg to pounds.

Kg To Tons: Convert kg to tons.

Kilowatt To Watt: Convert kilowatt to watt.

Kinetic Energy: Energy of kinetic.

Kite Area: Area of kite.

Km To Miles: Convert km to miles.

Knots To Kph: Convert knots to kph.

Kph To Knots: Convert kph to knots.

Kph To Mps: Convert kph to mps.

Kurtosis Sample: Kurtosis Sample

KWH To Joule: Convert kwh to joule.

Label Encode: Label Encode

Language By Country: Language By Country

Language Name: Language Name

Last N Lines: Last N Lines

Legendre Symbol: Legendre Symbol

Lemmatize: Lemmatize

Length: Convert a length value between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. Provide value and from/to units.

Lerp: Linearly interpolate between two values a and b by a factor t (0-1). Provide a, b, and optional t (default 0.5).

Lerp Value: Lerp Value

Levenshtein: Compute Levenshtein edit distance between strings.

Levenshtein Distance: Distance between levenshtein.

Lexical Diversity: Lexical Diversity

License Gen: License Gen

Light Speed: Speed of light.

Line Contains: Line Contains

Line Count: Line Count

Linear Regression: Linear Regression

Linear Search: Linear Search

Link Check: Link Check

Liters To Gallons: Convert liters to gallons.

x402-liveness-check-v1: Service liveness probe. 🆓 5 free trial calls per signed wallet

Loan: Loan calculator — monthly payment, amortization.

Loan Amortize: Loan Amortize

Loan Payment: Loan Payment

Log Base: Calculate the logarithm of a value with a specified base. Provide value and optional base (default 10).

Log Returns: Log Returns

Longest Common Substring: Longest Common Substring

Lorem: Generate Lorem Ipsum placeholder text.

Lorem Ipsum: Lorem Ipsum

Lorenz Curve: Lorenz Curve

Lowercase Count: Lowercase Count

Lowercase Ratio: Ratio of lowercase.

Lowest Bit: Lowest Bit

Lucas Index: Lucas Index

Lucas Number: Lucas Number

Lucas Series: Series of lucas.

Macd: Calculate the MACD (Moving Average Convergence Divergence) indicator. Provide values array and optional fast/slow/signal periods.

Manhattan Distance: Distance between manhattan.

Map To Range: Convert map to range.

Map Value: Map Value

Margin Calc: Margin Calc

Margin Of Error: Margin Of Error

x402-markdown: Markdown to text or HTML. 🆓 5 free trial calls per signed wallet

Markdown Frontmatter: Markdown Frontmatter

Markdown HTML: Convert Markdown to HTML.

Markdown Links: Markdown Links

Markdown Lint: Markdown Lint

Markdown Table: Extract tables from Markdown into structured JSON — list of tables, each with headers and row objects.

Markdown Toc: Markdown Toc

Markdown Tool: Markdown utilities.

Market Cap: Market Cap

X402 Market Census: x402 ecosystem census — platform hub snapshot (premium, no trial).

Market Overview: Major token snapshot with 24h sentiment.

Market Pulse: Crypto market overview: prices with 24h change for top coins (optional custom list) plus the fear-and-greed index.

Market Terminal: Market terminal — real-time prices and analysis.

Markup Calc: Markup Calc

Mask: Mask sensitive data (emails, cards, keys).

Mask Card: Mask card.

Mask Email: Mask email.

Mask Phone: Mask phone.

Mass From Moles: Mass of from moles.

Mastermind: Bulls/cows guessing game logic.

Math: Safe math expressions. 🆓 5 free trial calls per signed wallet

Matrix Add: Matrix Add

Matrix Cols: Matrix Cols

Matrix Determinant: Matrix Determinant

Matrix Diagonal: Diagonal of matrix.

Matrix Flatten: Matrix Flatten

Matrix Identity: Matrix Identity

Matrix Is Square: Matrix Is Square

Matrix Multiply: Matrix Multiply

Matrix Rows: Matrix Rows

Matrix Scalar: Matrix Scalar

Matrix Shape: Matrix Shape

Matrix Sub: Matrix Sub

Matrix Trace: Matrix Trace

Matrix Transpose: Matrix Transpose

Matrix Zero: Matrix Zero

Max Drawdown: Maximum of drawdown.

Mb To Gb: Convert mb to gb.

Mean Abs Deviation: Mean of abs deviation.

Mean Absolute Error: Mean of absolute error.

Mean Of: Mean of of.

Mean Squared Error: Mean of squared error.

Mechanical Advantage: Mechanical Advantage

Median: Calculate the median of a numeric array. Provide values; returns the middle value (or average of two middles for even counts).

Median Absolute Deviation: Median of absolute deviation.

Median Filter: Median of filter.

Merge Sort: Merge Sort

Meta Tags: Meta Tags

Metaphone: Metaphone

Meters To Feet: Convert meters to feet.

Meters To Yards: Convert meters to yards.

Metric Imperial: Metric Imperial

Midhinge: Calculate the midhinge: the average of the first and third quartiles of a dataset. Provide values array.

Midpoint: Calculate the midpoint (halfway point) between two GPS coordinates given lat1/lon1 and lat2/lon2.

Midrange: Calculate the midrange of a dataset: the average of its minimum and maximum. Provide values array.

Miles To Km: Convert miles to km.

Miller Rabin: Miller Rabin

Mime: Look up MIME types by extension.

Mime Detect: Mime Detect

x402-mime-type: Detect MIME type from filename extension. FREE utility. 🆓 5 free trial calls per signed wallet

Min Max Normalize: Minimum of max normalize.

Minesweeper: Generate minesweeper boards and reveal cells.

Mixed Case Ratio: Ratio of mixed case.

Ml To Cups: Convert ml to cups.

Mode: Compute the mode of a dataset.

Molar Mass: Mass of molar.

Molarity: Calculate molarity: moles of solute divided by volume of solution. Provide moles and volume.

Moles From Mass: Mass of moles from.

Momentum: Calculate momentum in physics: mass multiplied by velocity. Provide mass and velocity values.

Monochromatic: Monochromatic

Month Days: Month Days

Month End: Month End

Month Name: Month Name

Month Name Full: Month Name Full

Month Name Short: Month Name Short

Month Start: Month Start

Monthly To Annual: Convert monthly to annual.

Moon Phase: Moon Phase

Morse: Encode/decode Morse code.

Mortgage Calc: Mortgage Calc

Mortgage Payment: Mortgage Payment

Moving Average: Average of moving.

Moving Std: Moving Std

Moving Sum: Sum of moving.

Mph To Mps: Convert mph to mps.

Mps To Kph: Convert mps to kph.

Mps To Mph: Convert mps to mph.

x402-msgpack: 手写 MessagePack 编码/解码（无外部依赖）。encode 输出 base64（UTF-8 JSON 文本 → msgpack 二进制 → base64），

x402-multi-balance: Check an Ethereum wallet balance across multiple chains in parallel via direct RPC (ethereum, base, optimism, arbitrum and more).

x402-multi-gas: 多链并行查 gas 价格。默认查 base/ethereum/optimism/arbitrum，可指定 chains=base,eth。

Multinomial: Multinomial

Multiplicative Inverse: Multiplicative Inverse

Mx Lookup: Mx Lookup

x402-mythos-ekg: Mythos heartbeat. 🆓 5 free trial calls per signed wallet

Nanoid: Generate a NanoID.

Nearest City: Nearest City

Ner Extract: Ner Extract

Neutron Mass: Mass of neutron.

x402-new-token-check: New token due-diligence: age, holder/creator concentration, liquidity, tax, honeypot, CEX listing -> TRADEABLE/CAUTION/AVOID.

x402-news: x402-news — service

News Brief: News brief — top stories and analysis.

Newton Method: Newton Method

Next Business Day: Next Business Day

Next Month: Next Month

Next Weekday: Next Weekday

Next Year: Next Year

NFT Metadata: NFT Metadata

NFT Owner: NFT Owner

Ngram: Generate n-grams from an array of values. Provide values and optional n (default 2); returns consecutive n-item groups.

Ngram Gen: Ngram Gen

Nonce Fetch: Nonce Fetch

Normal Cdf: Normal Cdf

Normal Pdf: Normal Pdf

Normal Quantile: Normal Quantile

Normalize: Normalize

Normalize Array: Normalize Array

Normalize Vector: Normalize Vector

Normalize Whitespace: Normalize Whitespace

x402-npm-audit: NPM package security audit. 🆓 5 free trial calls per signed wallet

Npm Package Info: Npm Package Info

NPV Calc: Calculate Net Present Value (NPV) from a cashflow series and discount rate. Provide cashflows and rate.

Nroot: Calculate the nth root of a value. Provide value and optional root (default 2, i.e. square root).

Ns Lookup: Ns Lookup

Nth Largest: Nth Largest

Nth Smallest: Nth Smallest

Number Base: Convert between number bases (binary, hex, decimal).

Number Humanize: Number Humanize

Number Precision: Number Precision

Number Report: Generate a number analysis report.

Number To Hex Color: Convert number to hex color.

Number To Words: Convert number to words.

Number Trivia: Number Trivia

Oauth Scopes: Oauth Scopes

Obfuscate Email: Obfuscate Email

Obv: Calculate On-Balance Volume (OBV), a volume-based momentum indicator. Provide close price and volume arrays.

Odd Series: Series of odd.

Odds Ratio: Ratio of odds.

Og Image: Generate an Open Graph image URL from a title. Provide title and optional width/height; returns an OG image link.

Og Tags: Fetch and extract Open Graph meta tags from a URL. Provide a url; returns og:title, og:image, og:description etc.

Ohms Law I: Ohms Law I

Ohms Law R: Ohms Law R

Ohms Law V: Ohms Law V

x402-onchain: Generic read-only JSON-RPC passthrough

x402-onchain-reads-v1: Multi-chain onchain reads. 🆓 5 free trial calls per signed wallet

One Hot Encode: One Hot Encode

Operating Cycle: Operating Cycle

Operating Margin: Operating Margin

Option Intrinsic: Option Intrinsic

Option Time Value: Option Time Value

OSINT Pack: OSINT toolkit — domain, IP, email, and social recon.

Ounces To Grams: Convert ounces to grams.

Outlier Detect: Outlier Detect

Page Audit: Web page audit — SEO, accessibility, and performance.

Palindrome: Check if a string is a palindrome.

Paragraph Count: Paragraph Count

Paragraph Split: Paragraph Split

Parallelogram Area: Area of parallelogram.

Parse Date: Parse date.

Parsec: Return the length of a parsec in meters (3.0857 x 10^16), an astronomical distance unit. No input needed.

Partition: Partition

Partition Number: Partition Number

Pascal Case: Pascal Case

Pascal To Atm: Convert pascal to atm.

Password: Generate strong passwords.

Password Entropy: Password Entropy

Password Leak: Password Leak

Password Strength: Password Strength

x402-path-validator: 路径安全校验——拒绝 traversal(..)/NUL/绝对路径逃逸，返回规范化相对路径。文件系统操作前的防护工具。

X402 Payment Debugger: x402 payment chain diagnosis (premium, no trial).

Pay Period: Period of pay.

x402 Payment Endpoint Trust Check: Black-box check: does the x402 endpoint verify payment (reject forged txHash/signature/replay) before delivering? Buyer-side trust check before you pay. Returns SAFE/RISK/NOT_X402.

Pbkdf2: Derive a PBKDF2-SHA256 key from a password and salt. Provide password, salt, and optional iterations/keylen.

x402-pdf: Parse a PDF from a URL into extracted text, page count and metadata via pdf-parse. SSRF-guarded and free.

Pdf Text: Extract text from PDF files. 🆓 5 free trial calls per signed wallet

Pe Ratio: Ratio of pe.

Percent: Percentage calculators.

Percent Change Array: Percent Change Array

Percent Change Of: Percent Change Of

Percent Composition: Percent Composition

Percent Of: Percent Of

Percent Of Value: Percent Of Value

Percent To Ratio: Convert percent to ratio.

Percent Yield: Percent Yield

Percentage Change: Percentage Change

Percentage Of: Percentage Of

Percentile: Percentile

Percentile Rank: Percentile Rank

Percentile Rank Of: Percentile Rank Of

Perfect Numbers: Perfect Numbers

Period: Calculate the period of a wave: the reciprocal of frequency. Provide frequency value.

Permutation Count: Permutation Count

Permutations: Permutations

x402-perp-funding-arb: The same perpetual, priced for carry on two venues at once — Polymarket Perps and Hyperliquid — with both hourly funding rates annualised onto the same basis and the spread between them. Funding is what a leveraged position pays or earns every hour, so a venue that charges far less (or pays far more) is the difference between a carry trade that works and one that bleeds. Both venues publish this keylessly, which is why one call can do what no single-venue service can. Optionally pass symbol to check one asset.

Perpetuity: Perpetuity

Ph From Concentration: Ph From Concentration

x402-phone-validator: 电话号码格式校验（E.164 全局格式为主，国家码可选）。只验格式与位数规则，不做运营商查询/真号验证。

Photon Energy: Energy of photon.

Pi: Return the mathematical constant pi (3.14159...). No input needed.

Ping: HTTP ping a URL: returns status code and latency with SSRF protection.

Ping Check: Ping Check

x402-pip-audit: Python package security audit. 🆓 5 free trial calls per signed wallet

Placeholder Image: Placeholder Image

Planck Constant: Constant planck.

Platform Uptime: Check minia2a platform uptime.

Pluralize: Pluralize

Poh From Concentration: Poh From Concentration

Poisson Pmf: Poisson Pmf

x402-poker-equity: Monte-carlo poker hand equity vs N opponents

Poker Hand Evaluator: Evaluate 5-7 card poker hands.

Poly CLOB: Raw Polymarket CLOB order book for one outcome token — every resting bid and ask exactly as the exchange returns it. Needs a token id from x402-poly-markets or x402-polymarket. For derived views use x402-poly-depth (cumulative), x402-poly-walls (large clusters) or x402-poly-signals (just the touch).

Poly Depth: Cumulative Polymarket order-book depth for one outcome token, walking outward from the touch — how much size it takes to move the price. Built from the same book as x402-poly-clob; x402-poly-walls shows the largest individual price clusters instead.

x402-poly-history: Price time series for a Polymarket outcome token, with the trend statistics agents need (first/last price, change in cents and percent, high, low, average, direction, volatility). Existing Polymarket services here give you a snapshot of the book; this is the only one that gives you where the odds have been, which is what a momentum or mean-reversion decision actually needs.

Poly Markets: The busiest Polymarket markets right now, with the full tradable record — conditionId, CLOB token ids, outcome names and prices, bid/ask, 24h volume, liquidity, end date and minimum price tick. Use x402-poly-volume to rank by activity rather than size, or x402-polymarket-odds to look up a market you already know.

Poly Price: Search Polymarket by keyword and get the matching markets with their prices. Uses a real search endpoint, so a term with no matches comes back as an explicit no-match answer rather than an unrelated default list. Use x402-polymarket to browse by tag instead.

Poly Signals: The touch for one Polymarket outcome token: best bid, best ask, midpoint, spread in absolute and relative terms, and whether the book is one-sided. Use x402-poly-clob when you need the full book rather than the top of it.

Poly Volume: Polymarket activity screen — ranks markets by turnover (24h volume divided by resting liquidity) and reports the round-trip cost, so you can tell a market that is genuinely busy from one that is merely large. Filter with minVolumeUsd and maxSpreadBps to get only markets worth trading. Use x402-poly-markets for a plain list; use this when the question is "where is there real activity I can actually participate in".

Poly Walls: The largest resting price clusters in a Polymarket order book — the prices where the most size is stacked, which is where a move tends to stall. minSize tunes the threshold. Siblings: x402-poly-clob (raw book), x402-poly-depth (cumulative depth).

Polygon Area: Area of polygon.

Polymarket: Browse Polymarket markets by tag/category, with everything you need to trade what you find — conditionId, CLOB token ids, outcome names and prices, current bid/ask, end date and the minimum price tick. Use this when you know the category you want; use x402-poly-price to search by keyword, x402-poly-markets for the overall busiest markets, and x402-polymarket-scan for whole events instead of single markets.

Polymarket Odds: Current odds for a specific Polymarket market — pass the slug you already have, or the numeric market id, or a keyword to search with. Returns every outcome with its implied probability, plus 24h volume, liquidity, end date and the CLOB token ids. Use this once you know which market you mean; use x402-poly-markets or x402-polymarket-scan to find one in the first place.

x402-polymarket-scan: Scan live Polymarket events ranked by volume, each with its markets inside — one call shows a whole topic rather than a single question. The cheapest entry point in this family: use it to see what is worth looking at, then x402-polymarket-odds for the specific market you pick.

x402-polyperp-book: Level-2 order book for one Polymarket Perps market, with the microstructure a trading agent needs before sending an order — best bid and ask, spread in absolute terms and basis points, midpoint, and cumulative bid/ask depth plus their imbalance. Thin books and lopsided depth are how you spot a bad fill in advance. Works on equities, indices and commodities as well as crypto.

x402-polyperp-candles: OHLCV candles for one Polymarket Perps market, with trend statistics computed for you — first open, last close, percent change, high, low, average volume, total trades and direction. Intervals: 1m, 5m, 15m, 30m, 1h, 4h, 1d, 1w. Use it for momentum, breakout and mean-reversion checks. Note these markets trade 24/7, so a daily candle covers the whole day for equities and commodities too — including the hours when the underlying cash market is shut.

x402-polyperp-exchange: The venue-level facts a bot needs before it starts trading on Polymarket Perps: whether the exchange is accepting orders or cancel-only, the settlement chain and contract address, the engine version, the maker/taker fee schedule per market category (equity, crypto and so on, with volume tiers), the API rate limits per volume tier, and the collateral asset with its decimals and withdrawal fee. One cheap call that prevents a bot from being throttled or from budgeting against the wrong fees.

x402-polyperp-funding: Funding-rate history for one Polymarket Perps market, hourly, with the summary a carry position needs — the current rate, the mean over the window, that mean annualised, the extremes, how many periods were positive versus negative, and which side pays. Funding is charged every hour and is the main cost of holding a leveraged position, so this is the number that decides whether a carry trade survives. Pair it with x402-perp-funding-arb to compare the same asset against Hyperliquid.

x402-polyperp-markets: Every market tradable on Polymarket Perps, with the constraints you need before sending an order — max leverage, risk tiers, minimum notional, maximum market and limit notional, price and quantity decimals, the allowed price band as a percentage, funding interval, liquidation fee, and whether the market is isolated-margin only. Covers 40 US equities (AAPL, NVDA, TSLA, MSFT, META, GOOG, AMZN, AMD, TSM, ASML, ORCL, PLTR, BABA, SAMSUNG...), 40 crypto pairs, 5 indices (SP500, NAS100, EWY, DRAM, NCLD) and 4 commodities (GOLD, SILVER, WTI, BRENT) — leveraged and trading 24/7, including weekends when the underlying cash market is shut. Use x402-polyperp-quotes for the live prices of these markets.

x402-polyperp-quotes: Live quotes for Polymarket Perps markets — index price, mark price, last traded price, mid, open interest, the current hourly funding rate and its annualised equivalent, and when funding is next charged. Also reports how far the mark sits from the index in basis points, which is the number that tells you whether the perpetual is trading rich or cheap versus its underlying. One call without a symbol returns the whole board; pass symbol to price a single market.

x402-polyperp-trades: The recent trade tape for one Polymarket Perps market — every fill with its side, price, size and timestamp — plus the derived flow statistics a signal actually uses: buy/sell volume split, net flow, volume-weighted average price, the largest print, and average trade size. Works for equities, indices and commodities as well as crypto. Use x402-polyperp-book to see resting liquidity, and this to see what actually executed.

Liquidity Pool Intel: A-B pair pool depth and best pool.

Pooled Std: Pooled Std

Pooled Variance: Pooled Variance

Population: Population

Population Mean: Mean of population.

Population Stddev: Population Stddev

Population Variance: Population Variance

Pos Tag: Part-of-speech tagging for English text. Provide text; returns word tags using a lightweight heuristic tagger.

Postal Code: Postal Code

Potential Energy: Energy of potential.

Pounds To Kg: Convert pounds to kg.

Pow Mod: Calculate modular exponentiation (base^exponent mod modulus) efficiently. Provide base, exponent, and modulus integers.

Power: Convert power between watts and horsepower. Provide value in watts; returns horsepower (0.00134102 hp per watt).

Power Series: Series of power.

Power Unit: Power of unit.

Power V I: Power of v i.

Powerset: Generate the powerset of an array — every possible subset. Provide values; returns array of all subsets.

Premium AI Toolkit: Premium AI toolkit — text, code, and analysis.

Premium Crypto Data: Premium crypto data — prices, on-chain, and market depth.

Premium Dev Tools: Premium developer toolkit.

Premium Finance: Premium finance toolkit — markets, valuation, and analysis.

Premium Security: Premium security toolkit — scans, audits, and intel.

Premium Web Scrape: Premium web scraping with anti-bot handling.

Present Value: Present Value

Pressure: Calculate pressure: force divided by area. Provide force and area values.

Pressure Unit: Pressure of unit.

Prettier Config: Prettier Config

Prev Month: Prev Month

Prev Weekday: Prev Weekday

Preview: Preview a URL (title, image, description).

Price Anomaly Detector: Cross-source price deviation detection.

Price Earnings: Price Earnings

Price Oracle: Multi-source price oracle. 🆓 5 free trial calls per signed wallet

x402-price-screener: multi-exchange price aggregation: BTC/ETH/SOL across coingecko+binance+kraken+coinbase, best/worst/avg/spread

Price To Book: Convert price to book.

Price To Cash Flow: Convert price to cash flow.

Price To Sales: Convert price to sales.

Prime: Prime number utilities — check, generate, factorize.

Prime Factors: Prime Factors

Prime Series: Series of prime.

Prism Volume: Volume of prism.

Profanity Count: Profanity Count

Profile Card: Profile Card

Profit Margin: Profit Margin

Progress Percent: Progress Percent

x402-prompt-templates: AI prompt template library.

Proportion Of: Proportion Of

Proton Mass: Mass of proton.

Proxy Detect: Proxy Detect

Psi To Bar: Convert psi to bar.

Paperknife PDF to JSON: Convert a public PDF URL into clean page-aware JSON for RAG and LLM ingestion. Actual x402 challenge price: $0.003 USDC on Base. Up to 20 MB and 100 pages; no API key.

moneytest-x402-seller-readiness: Deterministic x402 manifest, OpenAPI, and payment-challenge readiness receipt with explicit blockers, recommendations, and an optional separately scoped implementation path.

KHOTEM - cryptographic witness: Cryptographic witness for AI agents: seal, attest, verify, timestamp. x402 USDC on Base. Free trial seal, loyalty ladder -20%/-30% for repeat payers.

mm-x402-ops-map: MoneyMaker x402 earn-ops service map JSON (public discovery catalog of Worker SKUs and prices). GET returns service list for agents.

mm-earn-ops-brief: GET JSON earn-ops brief: soft-stop checklist + live Worker SKU map for x402 agents. Method GET.

payeecheck: Does this payTo address actually get paid? Reads inbound USDC transfers on Base from a 100%-coverage snapshot and reports the count and total. Built for the question our own on-chain census says every buyer should ask first: of 879 directory-listed x402 sellers, 805 received nothing in 24 hours. Returns paid true/false plus transfers and USD, with the snapshot window and its caveats. Base mainnet USDC only. Not a trust score.

Source Integrity Evidence: Fetch a public webpage and return a citation-ready excerpt with final URL, title, canonical URL, status, SHA-256 hash, and fetch timestamp.

Adversarial Claim Verifier: Before you pay an agent, verify the claim it made about itself. Does the seller's x402 payTo match what it advertises? Is that treasury balance real? Does the contract have the owner it says? Send POST {"claim":"...","checks":[...]} and each check is probed against the primary source, never against the claimant: http (status / body / JSON path), evm_balance (native or ERC-20 via asset, asserted against expect), evm_call (ownerOf / symbol / any view function), evm_tx (receipt status + Transfer log sender, recipient, amount), dns, x402 (does the payTo and price in the live 402 challenge match the seller's advertised price), x402_enforce (does the paywall actually hold when re-requested with no payment, a forged tx hash or a malformed header), hash (sha256 of an input). Returns per-check PASS / FAIL / UNVERIFIABLE with raw evidence and a copy-paste reproduce command, plus an overall CONFIRMED / REFUTED / PARTIALLY_VERIFIED. UNVERIFIABLE means the claim as stated cannot be probed and is therefore not evidence, and it is never reported as PASS. Use it on a stated number, a payout address, a contract ownership claim or an x402 price before you transact with that counterparty. 在付款给任何 agent 之前，先验证它自称的东西：x402 的 payTo 是否与它宣传的一致、金库余额是否真实、合约 owner 是否是它说的那个。每条 check 都打向一手来源，而不是打向声称方；不可验证的一律不报 PASS。

TokenSafe - ERC-20 Token Safety Verdict (Base): Live per-field token safety verdict for any Base ERC-20 address: holder concentration, LP/liquidity state, mint/freeze authority, honeypot transfer-tax behaviour. Each field from a live query; null means source unavailable. Same verdict on a free /free preview route.

RailAudit - x402 Facilitator & Rail Liveness Audit: Live audit of any x402 paywall: resolves the 402 challenge, tests the facilitator for settlement liveness, and reports whether the rail will actually settle a USDC payment on Base. Per-rail report, no key needed.

Punctuation Count: Punctuation Count

Purchasing Power: Power of purchasing.

Pypi Package Info: Pypi Package Info

Pyramid Surface: Surface area of pyramid.

Pyramid Volume: Volume of pyramid.

Pythagorean: Pythagorean

Pythagorean Leg: Pythagorean Leg

QR: Generate a QR code for text or a URL.

QR Generate: QR Generate

Quarter Of Year: Quarter Of Year

Quarter Start: Quarter Start

Quartile: Calculate quartiles (Q1, Q2 median, Q3) of a dataset. Provide values; returns the three quartiles.

Quartile Deviation: Quartile Deviation

Query String Build: Query String Build

Query String Parse: Query String Parse

Question Type: Question Type

Quick Ratio: Ratio of quick.

Quick Sort: Quick Sort

Quote Extract: Quote Extract

R Squared: R Squared

R2 Score: Compute R² (coefficient of determination).

Rad To Deg: Convert rad to deg.

Radians To Degrees: Convert radians to degrees.

Radioactive Decay: Radioactive Decay

Random: Crypto-secure random. 🆓 5 free trial calls per signed wallet

Random Address: Generate a random street address.

Random Color: Generate a random color.

Random Company: Generate a random company name.

Random Emoji: Generate a random emoji.

Random Exponential: Generate a random exponential number.

Random Fact: Generate a random fact.

Random Joke: Generate a random joke.

Random Name: Generate a random name.

Random Normal: Generate a random normal.

Random Phone: Generate a random phone.

Random Quote: Generate a random quote.

Random Range: Generate a random range.

Random Riddle: Generate a random riddle.

Random Word: Generate a random word.

Range: Calculate the statistical range of a dataset: maximum minus minimum. Provide values array.

Range Stat: Range Stat

Range Statistic: Range Statistic

Rate Of Change: Rate Of Change

Ratio Of: Ratio of of.

Ratio Simplify: Ratio of simplify.

Ratio To Percent: Convert ratio to percent.

Readability Score: Readability Score

Reading Level: Reading Level

Reading Time: Estimate reading time for text.

Readme Gen: Readme Gen

Real Rate: Real Rate

Recall: Keyword search over the live x402 service catalogue (up to 500 characters of query), returning matching service ids, names, endpoints and prices. Same catalogue search as x402-find, with a longer query limit.

Receivables Turnover: Receivables Turnover

Rect Prism Surface: Surface area of rect prism.

Rect Prism Volume: Volume of rect prism.

Rectangular Diagonal: Diagonal of rectangular.

Redact: Replace specified words in text with [REDACTED]. Provide text and a words array (or comma list) to hide.

Redirect Trace: Redirect Trace

Reduced Planck: Reduced Planck

Refractive Index: Refractive Index

Regex Explain: Explain regex in plain English. 🆓 5 free trial calls per signed wallet

x402-regex-test: Regex match test + replacement

Registrar Lookup: Registrar Lookup

Regular Octahedron Volume: Volume of regular octahedron.

Regular Polygon Area: Area of regular polygon.

Regular Polygon Exterior: Regular Polygon Exterior

Regular Polygon Interior: Regular Polygon Interior

Regular Polygon Perimeter: Regular Polygon Perimeter

Regular Tetrahedron Volume: Volume of regular tetrahedron.

Relation Extract: Relation Extract

Relative Risk: Relative Risk

Relative Time: Relative Time

Remap: Remap a value from one numeric range to another. Provide value, fromMin/fromMax and toMin/toMax.

Remove Accents: Remove Accents

Remove Control Chars: Remove Control Chars

Remove Duplicates: Remove Duplicates

Remove Duplicates Words: Remove Duplicates Words

Remove Emoji: Remove Emoji

Remove Empty Lines: Remove Empty Lines

Remove First Word: Remove First Word

Remove Last Word: Remove Last Word

Remove Non Ascii: Remove Non Ascii

Remove Punct: Remove Punct

Remove Whitespace: Remove Whitespace

Repeat Char: Repeat Char

Replace All: Replace All

Replace Multiple: Replace Multiple

x402-report: Generate a structured research report on any topic via DeepSeek — Markdown or JSON with title and sections, factual with no invented data.

Retention Ratio: Ratio of retention.

Returns: Calculate period-over-period returns of a price series. Provide values array; returns percentage changes between consecutive items.

Reverse: Reverse a string.

Reverse Array: Reverse array.

Reverse Geocode: Reverse geocode.

Reverse String: Reverse string.

Reversed Array: Reversed Array

x402-reversi-move: Reversi/Othello move (minimax alpha-beta)

Rfc2822: Format a date as an RFC 2822 email date string (e.g. 'Wed, 02 Sep 2026 12:00:00 +0000'). Provide optional date.

Rfc3339: Format a date as an RFC 3339 timestamp (ISO 8601, e.g. '2026-09-02T12:00:00Z'). Provide optional date.

Rgb To Hex: Convert rgb to hex.

Rhombus Area: Area of rhombus.

Rlp Decode: Rlp Decode

Robots Txt: Robots Txt

Roc: Calculate Rate of Change (ROC) as a percentage over a period. Provide values array and optional period (default 12).

ROI: Calculate Return on Investment as a percentage. Provide cost (or investment) and gain (or return).

ROI Calc: Calculate Return on Investment from invested and returned amounts. Provide invested and returned values.

Rolling Max: Maximum of rolling.

Rolling Min: Minimum of rolling.

Roman: Convert between Roman and Arabic numerals.

Root Mean Squared Error: Root Mean Squared Error

Rotate: Rotate an array left by k positions. Provide values and optional k (default 1).

Round To: Convert round to .

Round To Nearest: Convert round to nearest.

Routing Number: Routing Number

RPC: eth_call + RPC reads on 8 chains. Chain, method, params in/out. 🆓 5 free trial calls per signed wallet

RPC Health: RPC Health

x402-rps-strategy: Markov-chain RPS strategy from opponent history

RSI: Calculate the Relative Strength Index (RSI) of a price series. Provide values and optional period (default 14).

Rss Parse: Rss Parse

Rule Of69: Rule Of69

Rule Of72: Rule Of72

Running Total: Running Total

Sample Mean: Mean of sample.

Sample Variance: Sample Variance

Sawtooth Wave: Sawtooth Wave

Schedule Overlap: Schedule Overlap

Schema Validate: Validate data against a schema.

Scientific Notation: Scientific Notation

Script Detect: Script Detect

Scrypt: Derive a scrypt password hash from a password and salt. Provide password and salt; returns the hex digest (optional keylen, default 32).

Search: Cross-directory x402 service search.

Sec Suite: Security suite — audits, scans, and intel.

Seconds To Human: Convert seconds to human.

Secret Scan: Secret Scan

Sector Area: Area of sector.

Selection Sort: Selection Sort

Semver: Semantic versioning utilities.

Sentence Case: Sentence Case

Sentence Count: Sentence Count

Sentence Split: Sentence Split

Sentiment: Lexicon-based analysis.

Sentiment Fast: Fast sentiment analysis of text.

Sentiment Polarity: Sentiment Polarity

Sentiment Score: Sentiment Score

X402 Service Audit: x402 service audit report (premium, no trial).

Service Detect: Service Detect

Shannon Entropy: Shannon Entropy

Sharpe: Calculate the Sharpe ratio of returns. Provide a values price series; measures risk-adjusted return.

Sharpe Ratio: Ratio of sharpe.

Sig Figs: Round a number to a specified number of significant figures. Provide value and optional sigFigs (default 3).

Significant Digits: Significant Digits

Simple Interest: Simple Interest

Simpson Index: Simpson Index

Simpsons Rule: Simpsons Rule

Singularize: Singularize

Site Audit: Audit a website — SEO, performance, security.

Sitemap Gen: Sitemap Gen

Sitemap Parse: Sitemap Parse

Skewness: Calculate the skewness of a distribution. Provide values array; measures asymmetry (positive=right tail, negative=left).

Skewness Sample: Skewness Sample

Slug: Generate a URL slug from a string.

SMA: Calculate the Simple Moving Average (SMA) of a price series. Provide values and optional period/window (default 20).

Smart Contract Audit: Smart contract security audit, solidity vulnerability scan. 11 static patterns: reentrancy, access-control, integer-overflow, unvalidated-call, tx.origin auth, delegatecall, selfdestruct, block.timestamp, weak-randomness, assert misuse, owner-change. Fast pre-check, deterministic. Case: minia2a.uk/blog/blog-ai-contract-audit-august-2026.html

Smooth Step: Smooth Step

Snake Case: Snake Case

Soa Lookup: Soa Lookup

x402-sol-find: Solana token search (Jupiter token list)

x402-sol-onchain: Solana address balance + recent transactions (RPC)

x402-sol-report: Solana address report: balance + token accounts + activity

Solar Mass: Mass of solar.

Solidity Version: Solidity Version

Sort Lines: Sort lines of text (alpha, numeric, reverse).

Sort Numbers: Sort numbers.

Sort Strings: Sort strings.

Sorted Array: Sorted Array

Soundex: Encode a name into a Soundex code (letter + 3 digits) for fuzzy name matching. Provide name or word.

Space To Tab: Convert space to tab.

Spearman Rank: Spearman Rank

Speed: Convert between speed units.

Speed Convert: Speed of convert.

Speed To Kph: Convert speed to kph.

Spf Validate: Spf Validate

Sphere Cap Volume: Volume of sphere cap.

Sphere Density: Density of sphere.

Sphere Radius From Volume: Volume of sphere radius from.

Sphere Surface: Surface area of sphere.

Sphere Volume: Volume of sphere.

Split Complementary: Split Complementary

x402-sql-check: SQL injection + dangerous operation detection

SQL Explain: SQL Explain

SQL Format: SQL Format

SQL Validate: SQL Validate

Sqrt2: Return the square root of 2 (1.41421...). No input needed.

Sqrt3: Return the square root of 3 (1.73205...). No input needed.

Square Series: Series of square.

Square Wave: Square Wave

Ssh Fingerprint: Ssh Fingerprint

SSL Check: Check a domain SSL certificate.

Stablecoin Peg Monitor: Cross-chain stablecoin de-peg detection.

Standard Error: Standard Error

Standard Error Of Mean: Mean of standard error of.

Standard Normal Cdf: Standard Normal Cdf

Standard Scale: Standard Scale

Standardize: Standardize

Standardize Array: Standardize Array

Start Of Day: Start Of Day

Starts With Vowel: Starts With Vowel

Startup Kit: Startup toolkit — validation, planning, and research.

Stats: Statistical utilities — mean, median, variance.

Std Dev Population: Std Dev Population

Std Dev Sample: Std Dev Sample

Stddev: Calculate the standard deviation of a set of numbers. Provide numbers or values array.

Stem: Apply a simple English stemming algorithm to a word. Provide word or text; returns the stemmed form.

Stem Word: Stem Word

Step Function: Step Function

Stirling Second: Stirling Second

Stochastic: Stochastic

Stock Price: Stock price quotes.

Stopword Remove: Stopword Remove

Storage Slot: Storage Slot

Store: Append up to 4000 characters to the platform's agent-memory log and return an index id. Storage is platform-wide, not per-wallet, and no endpoint currently reads it back — treat this as a write-only record log.

String Compare: String Compare

String Similarity: String Similarity

Strip Emoji: Strip emoji.

Strip HTML: Strip HTML tags from text.

Strip Numbers: Strip numbers.

Strip Punctuation: Strip punctuation.

Strip Tags: Strip tags.

Substring After: Substring After

Substring Before: Substring Before

Substring Between: Substring Between

x402-sudoku-solve: Solve 9x9 sudoku (backtracking)

Sum Of Squares: Sum of of squares.

Sum Squares: Sum of squares.

x402-summarize: Concise text summarization via DeepSeek LLM. Provide text; returns a short summary of the key points.

Sustainable Growth: Sustainable Growth

Swap Safety: Pre-swap risk analysis. 🆓 5 free trial calls per signed wallet

SWIFT Code: SWIFT Code

Syllable Count: Syllable Count

Symmetric Difference: Symmetric Difference

T Statistic: T Statistic

Tab To Space: Convert tab to space.

Tablespoons To Ml: Convert tablespoons to ml.

Task Router: Route a task to the right service.

Tax Calc: Calculate tax on an amount. Provide amount and rate (or taxRate); supports rate modes via the mode parameter.

Teaspoons To Ml: Convert teaspoons to ml.

Temp: Convert between temperature units.

Temperature: Temperature

Temperature Convert: Temperature of convert.

Template Replace: Template Replace

Tetradic: Generate a tetradic (4-color) color harmony from a hue. Provide hue (0-360); returns four hues 90 degrees apart.

Text Bar Chart: Text Bar Chart

Text Clean: Clean text — strip noise and normalize.

Text Diff: Compute text differences. 🆓 5 free trial calls per signed wallet

Text Entropy: Text Entropy

Text Indent: Text Indent

Text Intel: Text intelligence — entities, sentiment, and topics.

Text Pad: Pad text to a specified length. Provide text and optional length; supports alignment modes.

Text Repeat: Text Repeat

Text Report: Generate a text report from data.

Text Scrape: Extract text from URL. 🆓 5 free trial calls per signed wallet

Text Shuffle: Text Shuffle

Text Similarity: Text Similarity

Text Sparkline: Text Sparkline

Text Stats: Text statistics — word count, readability, sentiment.

Text Table: Text Table

Text To JSON: Structured text to JSON. 🆓 5 free trial calls per signed wallet

Text Toolkit: Text toolkit — clean, transform, and analyze.

Text Wrap: Text Wrap

Textual Entailment: Textual Entailment

Throughput Humanize: Throughput Humanize

x402-tictactoe-move: Minimax-optimal tic-tac-toe move (per turn)

Time: UTC time, unix, ms. 🆓 5 free trial calls per signed wallet

Time Ago: Format a date as a relative time string ('3 days ago', 'just now'). Provide date or value.

Time Until: Time Until

Time Utilities: Time Utilities

Timestamp Pretty: Timestamp Pretty

Timezone: Timezone conversion and lookup.

Timezone Boundary: Timezone Boundary

Timezone By Location: Timezone By Location

Timezone Offset: Timezone Offset

Tip: Calculate tips and bill splits.

Tip Split: Tip Split

Title Case: Title Case

Tls Version: Tls Version

To Binary: Convert to binary.

To Fixed: Convert to fixed.

To Hex: Convert to hex.

To Octal: Convert to octal.

To Ordinal: Convert to ordinal.

To Roman: Convert to roman.

To Unicode: Convert to unicode.

Toggle Case: Toggle Case

Token Allowance: Token Allowance

x402-token-arbitrage-spot: Cross-DEX/chain price spread scanner: highest vs lowest pair price -> spread % (arbitrage signal).

Token Comparison: Side-by-side token price/liquidity/volume compare.

Token Decimals: Token Decimals

Token Intelligence: Aggregated token price/liquidity/volume risk report.

x402-token-liquidity-health: Token liquidity health score (0-100): total depth, pool concentration, DEX diversity, holder count.

x402-token-market: DexScreener token market (price/liquidity/volume)

x402-token-price: x402-token-price — utility service

x402-token-risk-report: On-chain token risk score (0-100) from GoPlus security signals + DexScreener liquidity; optional AI narrative.

x402-token-rugcheck: rug-pull risk score: honeypot.is + GeckoTerminal multi-source aggregation

Token Search: Search tokens by symbol or name via GeckoTerminal, returning matching pools and metadata.

Token Security: ERC-20 risk on Base. 🆓 5 free trial calls per signed wallet

Token Symbol: Token Symbol

Token Total Supply: Token Total Supply

Tokenize: Split text into word tokens. Provide text or input; returns the array of whitespace-separated words.

Toml JSON: Toml JSON

Tons To Kg: Convert tons to kg.

Torque: Calculate torque in physics: force multiplied by distance (lever arm). Provide force and distance values.

Torus Surface: Surface area of torus.

Torus Volume: Volume of torus.

Toxicity Score: Toxicity Score

Trace Call: Trace Call

x402-trading-signal: On-chain signals. 🆓 5 free trial calls per signed wallet

Trapezoid Area: Area of trapezoid.

Trapezoid Perimeter: Trapezoid Perimeter

Trapezoidal Rule: Trapezoidal Rule

Triadic: Generate a triadic (3-color) color harmony from a hue. Provide hue (0-360); returns three hues 120 degrees apart.

Triangle Area: Area of triangle.

Triangle Circumradius: Triangle Circumradius

Triangle Heron: Triangle Heron

Triangle Inradius: Triangle Inradius

Triangle Perimeter: Triangle Perimeter

Triangle Wave: Triangle Wave

Triangular Series: Series of triangular.

Trim Lines: Trim Lines

Trimean: Calculate the trimean of a dataset: the weighted average of the median and the two quartiles. Provide values array.

Trimmed Mean: Mean of trimmed.

Trimmed Std: Trimmed Std

Truncate: Truncate a string to a length.

Truncate Decimal: Truncate decimal.

Truncate Middle: Truncate middle.