Quietforge x402 Tools MCP server

• quietforge_pricingFree

  Price-check Quietforge's paid x402 HTTP routes before paying (free read-only list, not tools here): convert docx, xlsx, pptx, csv to pdf; PDF text; URL/HTML to PNG; sudoku books; manuscript typesetting; crosswords; family trees from GEDCOM; dataset quality audits; x402 index API. USD prices, pay-to address, how an x402 client pays.

• sudoku_puzzleFree

  Use this when a user wants a sudoku to play or print, or an app needs a verified puzzle at a named difficulty. Generates ONE sudoku puzzle with a unique solution, 180-degree symmetry, graded by the solving techniques it needs (easy | medium | hard | expert). Returns 81-char puzzle and solution strings (row by row, 0 = empty), given count and technique list. Deterministic when a seed is supplied. 20 per minute shared by all clients.

• x402_demandFree

  Use this to answer "is anyone actually paying for x402 APIs today" with settled on-chain numbers instead of listings. Market-level demand signal for the x402 ecosystem, verified against on-chain USDC settlement on Base rather than self-reported call counts: how many seller addresses were paid in the last 24h, total USD settled, and the distribution of sellers by payment count. Free and aggregate-only; the per-seller breakdown (distinct payers per address; payer counts include sampler/grader wallets that pay many sellers once, so read them as an upper bound on customers) is the paid GET /v1/x402/demand route. Refuses to answer rather than serve a stale snapshot.

• x402_index_statsFree

  Use this to see how much this index covers (it is a subset of the x402 market, not all of it) and to sanity-check x402_search coverage before relying on it. Summary of the index: totals, how many endpoints answered on the last probe, counts per network and per source, and when the crawl ran.

• x402_probeFree

  Use this to check a URL you are about to pay (or one you operate) for a well-formed x402 challenge before sending funds; a challenge is no guarantee the service delivers. Makes ONE live unpaid request to a public http(s) URL and reports whether it is an x402 endpoint: status code, latency, alive flag, whether a PAYMENT-REQUIRED challenge came back and the parsed USD price. GET only, except that a URL already in the index is probed with its listed method. Public hosts only (redirects re-checked), delisted hosts never contacted, results cached 60 s, 3 probes per host per 5 min and 30 per minute overall.

• x402_searchFree

  Use this to find a pay-per-call x402 API for a given task, network or price cap before calling it (mostly USDC on Base; check each row's network and asset, some are testnet or other assets). Searches a health-probed directory of live x402 pay-per-call HTTP endpoints on Base, Solana and other networks (x402_index_stats gives the current count). Returns id, resource URL, method, network, USD price, description, 30-day call/payer counts and our own uptime/probe data. Data is re-crawled a few times a day, not real-time. Quietforge operates this directory and also operates some listed endpoints (source=quietforge) under the same per-host cap as every operator; ordering is by 30-day usage, then liveness, then freshness, never by operator.

• x402_serviceFree

  Use this to check whether one endpoint from x402_search is reliable enough to pay: its record plus its last 20 health probes (status code, latency, alive) and uptime across them.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1205ms20/20
• Tool poisoning7 tool descriptions checked15/15
• Auth qualityopen endpoint, read-only tools10/15
• Maintenancelast push 37 days ago12/15
• Maintainer identityregistry namespace matches repository owner6/10

Safety score

84/100

higher than 68% of 48,255 servers

Tools

7

the typical server has 7

Tools that change things

0%

typical: 0%. Fewer write tools means less an agent can break

Uptime

100%

of our recent checks; the typical remote server answers 100%

Response time

288 ms

faster than 49% of 30,031 servers

Grade history

• 2026-10-30downgradeA → Bscore 84

Quietforge x402 Tools: common questions

Is Quietforge x402 Tools MCP server safe?

Mostly: it is graded B (84/100). Read the Quietforge x402 Tools safety report

How do I install Quietforge x402 Tools?

It runs remotely at qf-api.quietforge-studio.workers.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Quietforge x402 Tools need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Quietforge x402 Tools maintained?

The last commit was 42 days ago (2026-09-23). The latest release is v1.3.0.

Is Quietforge x402 Tools up?

100% of our last 28 checks got an answer. We check remote servers about four times a day.

How does Quietforge x402 Tools compare with other MCP servers?

safety score 84/100 (higher than 68% of 48,255 servers); tools 7 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.