Web Search & Data API MCP server

• author_searchFree

  Author and researcher profile search. An author name returns matching researchers with current affiliation, publication count, total citations, h-index and i10-index, and their most-cited papers — for author lookup, disambiguation, and citation-metrics. Keyless via OpenAlex. [$0.02/call]. Params — name: author name to search; maxItems: 1-25 candidate authors; top_works: top papers per author (0-25) Example params: {'name': 'Yoshua Bengio', 'maxItems': 3}

• congress_tradesFree

  US congressional stock trades. Stock transactions disclosed by members of the House and Senate under the STOCK Act — politician, ticker, amount, and date. [$0.05/call]. Params — politician: filer name substring; ticker: stock ticker, exact; chamber: string (house|senate); dateRange: YYYY-MM-DD..YYYY-MM-DD on transaction date; type: transaction type substring e.g. purchase|sale; maxItems: integer Example params: {'ticker': 'NVDA', 'chamber': 'house'}

• cveFree

  CVE vulnerability lookup. Returns security vulnerability records by CVE id or keyword from the NIST National Vulnerability Database and GitHub Security Advisories, each with CVSS score, severity, CWE weakness class, affected products, and references, filterable by severity and source. For vulnerability triage and dependency risk checks. Keyless. [$0.01/call]. Params — cve_id: exact CVE id, e.g. CVE-2021-44228; keyword: free-text search; severity: string (low|medium|high|critical); source: string (nvd|github|all); maxItems: integer Example params: {'keyword': 'log4j', 'severity': 'critical'}

• dns_propagationFree

  DNS propagation checker. Compares a DNS record across public resolvers (Google, Cloudflare, Quad9, OpenDNS) to spot propagation lag or split-horizon answers. [$0.03/call]. Params — domain: string; record_type: string (A|AAAA|CNAME|MX|NS|TXT) Example params: {'domain': 'example.com', 'record_type': 'A'}

• domain_infoFree

  Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain. [$0.02/call]. Params — domain: string Example params: {'domain': 'example.com'}

• geocodeFree

  Geocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address. [$0.01/call]. Params — q: address (forward geocode); lat: latitude (reverse geocode); lon: longitude (reverse geocode); maxItems: integer Example params: {'q': '1600 Amphitheatre Parkway, Mountain View, CA'}

• githubFree

  GitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API. [$0.02/call]. Params — mode: what to fetch (repo|search|user); repos: comma list of owner/name (mode=repo); q: search query (mode=search); usernames: comma list (mode=user); maxItems: integer Example params: {'mode': 'repo', 'repos': 'microsoft/vscode'}

• hackernewsFree

  Hacker News feed. Top, new, and best front-page stories plus full-text story search — titles, scores, comment counts, and author for tech and startup news. [$0.01/call]. Params — mode: string (search|top|new|best); q: query (mode=search); maxItems: integer Example params: {'mode': 'search', 'q': 'ai agents'}

• interest_by_regionFree

  Google Trends interest by region for a keyword. Returns the subregional breakdown of Google Trends search interest inside a country - by state, province, or region - each ranked 0-100 relative to the strongest region. For regional demand mapping, geo targeting, and finding where a keyword over-indexes before spending on it. [$0.03/call]. Params — keyword: the search term; geo: ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported); timeframe: time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly (2004_present|past_12_months|past_30_days|past_4_hours|past_5_years|past_7_days|past_90_days|past_day|past_hour) Example params: {'keyword': 'bitcoin', 'geo': 'US'}

• lit_reviewFree

  Literature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a single call. Keyless. [$0.08/call]. Params — q: topic query (seed = top hit); use this OR id/doi; id: seed paper: arXiv id, DOI, OpenAlex id, or PMID; doi: alias for id (DOI form); maxItems: max nodes per section (1-25) Example params: {'doi': '10.48550/arXiv.1706.03762', 'maxItems': 10}

• paper_detailsFree

  Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar. [$0.03/call]. Params — id: arXiv id, DOI, OpenAlex id, or PMID; doi: alias for id (DOI form); ref_limit: max references (0-100); cite_limit: max citing works (0-100) Example params: {'doi': '10.48550/arXiv.1706.03762'}

• paper_fulltextFree

  Full text and open-access PDF retrieval for a paper. Given an arXiv id, DOI, OpenAlex id, PMID, or PMCID, returns the readable body split into sections (introduction, methods, results) plus the open-access PDF location: arXiv via ar5iv, biomedical via Europe PMC, OA locations via OpenAlex for the rest. The 'now read it' call after a paper search. Keyless. [$0.04/call]. Params — id: arXiv id, DOI, OpenAlex id, PMID, or PMCID; doi: alias for id (DOI form) Example params: {'id': '1706.03762'}

• papersFree

  Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless. [$0.02/call]. Params — q: search query / keywords; source: string (all|arxiv|pubmed|openalex|crossref|semanticscholar); maxItems: 1-50; year_from: earliest publication year (inclusive); year_to: latest publication year (inclusive); sort: string (relevance|recency|citations) Example params: {'q': 'transformer attention', 'source': 'all', 'maxItems': 10, 'sort': 'citations'}

• related_papersFree

  Literature review and related-paper discovery. Given a seed paper (arXiv id, DOI, or OpenAlex id) or a topic query, returns semantically similar and recommended scholarly papers to expand a reading list or systematic review, via Semantic Scholar recommendations with an OpenAlex related-works fallback. Keyless. [$0.03/call]. Params — id: paper arXiv id, DOI, or OpenAlex id; doi: alias for id (DOI form); q: query (alternative to id — relevance search); maxItems: 1-50 Example params: {'doi': '10.48550/arXiv.1706.03762', 'maxItems': 10}

• related_queriesFree

  Google Trends related queries for a keyword. Returns the searches people run alongside a keyword in a given country: top queries scored 0-100 relative to each other, and rising queries with their percentage growth. Google Trends keyword expansion for SEO keyword research, content planning, and spotting breakout search demand early. [$0.03/call]. Params — keyword: the search term; geo: ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported); timeframe: time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly (2004_present|past_12_months|past_30_days|past_4_hours|past_5_years|past_7_days|past_90_days|past_day|past_hour) Example params: {'keyword': 'bitcoin', 'geo': 'US'}

• related_topicsFree

  Google Trends related topics for a keyword. Returns the topics and named entities associated with a keyword in a given country, as top topics scored 0-100 relative to each other and rising topics with percentage growth, each carrying its entity type. Google Trends topic discovery for market research and content planning. [$0.03/call]. Params — keyword: the search term; geo: ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported); timeframe: time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly (2004_present|past_12_months|past_30_days|past_4_hours|past_5_years|past_7_days|past_90_days|past_day|past_hour) Example params: {'keyword': 'bitcoin', 'geo': 'US'}

• scrapeFree

  Scrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler. [$0.03/call]. Params — url: page URL to scrape; maxChars: markdown cap Example params: {'url': 'https://example.com'}

• sec_edgarFree

  SEC filings full-text search. Searches SEC EDGAR filings - 10-K, 10-Q, 8-K, and every other form type - by keyword, company name, ticker, or CIK, with date-range filtering, returning company, form type, filing date, accession number, and a direct document link. For SEC filings research and disclosure monitoring. Keyless. [$0.05/call]. Params — q: full-text query; company: entity name; cik: SEC CIK; type: form type, e.g. 10-K|10-Q|8-K; dateRange: YYYY-MM-DD..YYYY-MM-DD; maxItems: integer Example params: {'q': 'artificial intelligence', 'type': '10-K'}

• serpFree

  Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex). [$0.05/call]. Params — q: search query; num_results: max results, cap 25; region: locale, e.g. us-en, uk-en, de-de; timelimit: restrict to past day/week/month/year (d|w|m|y); safesearch: string (on|moderate|off); page: result page (pagination); mode: web results or recent news (news adds date+source per item). the news index is narrow, so a long or highly specific news query that matches nothing falls through to web rather than returning empty; those items carry requestedMode=news and servedBy=web (web|news); engine: search backend: auto (recommended - rotates engines and falls back on blocks) or pin one of yahoo, yandex (web mode); news mode supports bing. when set, each result carries an 'engine' field; if the pinned engine returns nothing, auto serves instead and results also carry 'requestedEngine' Example params: {'q': 'best python web scraping library', 'num_results': 10}

• serp_batchFree

  Bulk web search: up to 5 search queries in a single call, each returning ranked title, URL, and snippet, with the same locale, freshness, and news filters as the single-query web search. One paid call instead of five for research fan-out. [$0.10/call]. Params — queries: up to 5 search queries separated by '|'; num_results: max results per query, cap 25; region: locale, e.g. us-en, uk-en, de-de; timelimit: restrict to past day/week/month/year (d|w|m|y); safesearch: string (on|moderate|off); mode: string (web|news); engine: search backend: auto (recommended) or yahoo/yandex (web); bing (news) Example params: {'queries': 'python asyncio tutorial|rust tokio tutorial'}

• serp_multiFree

  Multi-engine web search (metasearch). One search query fanned out across 2-3 search engines (Brave, Yahoo, Yandex) with results deduplicated by URL and merged by reciprocal-rank fusion: consensus ranking across engines instead of one engine's bias, with per-engine rank attribution on every result. [$0.05/call]. Params — q: search query; engines: comma list of 2-3 engines: yahoo, yandex (web mode). news mode has a single live engine (bing), so multi-engine is web-only; num_results: max results per engine, cap 25; region: locale, e.g. us-en, uk-en, de-de; timelimit: restrict to past day/week/month/year (d|w|m|y); safesearch: string (on|moderate|off); mode: string (web|news) Example params: {'q': 'best vector database 2026', 'engines': 'yahoo,yandex'}

• serp_readFree

  Web search plus page reading in one call: answer with sources. Runs a web search, scrapes the top results, and returns the ranked search results together with each page's content as clean LLM-ready markdown, so an agent gets the SERP AND the underlying text without a second round of scrape calls. Per-page fetch errors are reported honestly per URL. [$0.08/call]. Params — q: search query; fetch_top: how many top results to fetch and extract, cap 5; maxChars: max markdown chars per fetched page; num_results: ranked results to return, cap 25; region: locale, e.g. us-en, uk-en, de-de; timelimit: restrict to past day/week/month/year (d|w|m|y); safesearch: string (on|moderate|off); mode: string (web|news); engine: search backend: auto (recommended) or yahoo/yandex (web); bing (news) Example params: {'q': 'how does x402 payment protocol work', 'fetch_top': 3}

• trendFree

  Google Trends interest over time for a keyword. Returns Google Trends search interest as a dated series indexed 0-100: weekly points across the default past 12 months, daily points for 30- and 90-day windows, and windows from the past hour back to 2004, with optional country targeting. For keyword trend analysis, search demand seasonality, and SEO keyword research. [$0.05/call]. Params — keyword: the search term to chart; geo: ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported); omit for worldwide; timeframe: time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly (2004_present|past_12_months|past_30_days|past_4_hours|past_5_years|past_7_days|past_90_days|past_day|past_hour) Example params: {'keyword': 'bitcoin', 'geo': 'US'}

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1255ms20/20
• Tool poisoning23 tool descriptions checked15/15
• Auth qualityopen endpoint, read-only tools10/15
• Maintenanceno repository listed3/15
• Maintainer identityverified namespace with website, no repo4/10

Web Search & Data API: common questions

Is Web Search & Data API MCP server safe?

With care: it is graded C, so read the findings first (69/100). Read the Web Search & Data API safety report

How do I install Web Search & Data API?

It runs remotely at api.kadec0.xyz. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Web Search & Data API need an API key?

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

Is Web Search & Data API maintained?

The latest release is v1.0.0.

Is Web Search & Data API up?

100% of our last 5 checks got an answer. We check remote servers about four times a day.

What can I use instead of Web Search & Data API?

Servers from other publishers that do the same job: upAPI MCP server, Google News & Trends MCP server and SearXNG Search MCP server. Compare all Web Search & Data API alternatives.