"X" matching MCP connectors:

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Historical FX rates for 100+ currencies vs USD from IMF and World Bank data, 1940-present.

IOCs (URLs, domains, IPs, hashes) shared by the infosec community on X/Twitter. No auth, CC0.

Verify Japanese companies, invoice-issuer registrations and addresses against government open data.

What a stock's price is betting on: implied growth, duration, margin from SEC filings. Free tools.

Deterministic claim verification with receipts across ~60 domains. No model in the loop.

Statistics and Research Åland (ÅSUB) PxWeb MCP.

Kosovo Agency of Statistics (ASKdata) PxWeb MCP.

Japanese court-run real-estate auctions (BIT). 5 tools, ~1,480 active listings. CC BY 4.0.

Zoning, ADU eligibility, flood zone, setbacks, and buildability intelligence for U.S. parcels.

ENTSO-E Transparency Platform MCP

iss-number MCP — wraps StupidAPIs (requires X-API-Key)

Job descriptions, skills, education requirements, and wage data

yesterdays-number MCP — wraps StupidAPIs (requires X-API-Key)

XKCD MCP — wraps xkcd.com JSON API (free, no auth)

政府統計 (e-Stat) の API を通じて、統計データやメタ情報を取得するためのサービスです。

国土交通省の不動産情報ライブラリから不動産価格データを取得するためのサービスです。

RU INN/OGRN, banks, geo, WHOIS. Agent self-registers via register_agent. 20 free/day.

LinkedIn-data API and MCP server for AI agents. Public profiles, companies, and posts as clean JSON. No login, single X-API-Key header, 300 free credits on signup. Public data only, so no private connections or InMail.

Search over 300K U.S. yearbooks, over 100M mentions. Free preview; subscription unlocks scans.