"Identifying Servers Without Any API Key Configuration" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
STIX IOCs, CVE lookups w/ EPSS/KEV, ATT&CK dossiers, OFAC wallet sanctions, domain age checks.
Money, FX, capital-market and metadata-only China macro evidence with source clocks and limits.
Indeed job listings by keyword and location, and full postings, as structured JSON.
Verified US local service providers across 10 home-services trades. Owned data, no API key.
Verified, citable German & EU law for any LLM. Daily updates from official sources, hosted in DE.
China A-share market data over MCP: 22 tools for quotes, K-line, financials, money flow, top-trader boards, sectors, macro, convertible bonds and factor screening. Five tools need no API key, so you can connect and try it immediately.
Bulk Google Trends: interest over time, regions, rising queries and plain-English trend summaries.
Google Trends interest over time, by region, and related queries and topics, as JSON.
Open AI Visibility Index for crypto and Web3. Weekly share-of-answer measurements for 24 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.
Open AI Visibility Index for SaaS and AI tools. Weekly share-of-answer measurements for 20 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.
City geocoding and timezone resolution for birth data, for AI agents, one API key.
Resolve scholarly identifiers (DOI, PMID, ISBN, arXiv, ISSN, ADS, WHO IRIS) into citations (10,000+ CSL styles) and exports (BibTeX, RIS, EndNote...), plus retraction, open-access, and citation-fabrication checks. Six tools, anonymous-friendly Streamable HTTP.
Read-only MCP server for Ukraine's licensed microfinance (MFO) catalog: loan terms, NBU licenses, ratings, reviews.
Spanish Companies Registry gazette (BORME) joined with public grants (BDNS) and public procurement awards (PLACSP) per company, for KYB and due diligence. Every fact links to its official publication. Bearer API key (free: 500 calls/day) via https://asientouno.com/contacto.
Explore public CD, money-market, Treasury and municipal rate records with data dates and source links. Compare options and build illustrative fixed-income ladders. No BrinkerAdvisor account or API key required. Public information only; no account access, trading or personalized investment advice. Documentation: https://mcp.brinkeradvisor.com/support
US government + SEC data as clean JSON: SAM.gov, USAspending, Grants.gov, Congress, SEC filings.
Search otwarteAPI.pl — a catalog of 53 official public Polish and EU APIs (VAT white list, KRS, GUS, NBP, ECB, Eurostat, VIES and more), curated for AI agents. One tool: find the right API by natural-language query. No API key, no signup.
Verified data on 8,000+ AI tools for any AI assistant: live status, pricing reality, user sentiment, viability, and alternatives, every answer carries a last-verified date. Free, read-only, no auth.
Elevation-corrected sun, moon, twilight, solar and tide data for any point on Earth
Three public-data tools as MCP tools: building permits from 16 US city open-data portals on one schema (contractor leads, permit velocity); job postings from 9 ATS platforms (Greenhouse, Lever, Ashby, Workday, SmartRecruiters, Workable, Recruitee, Personio, Rippling) with company to ATS auto-discovery; and a free company ATS detector. Runs on Apify; send your Apify API token as a Bearer token. Pay per result, no subscription. https://makenomistakesllc.com
