MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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530 servers

Ordered by checks passedClear filters
Dated server measurements. The status describes the last probe or a listed authentication requirement. Checks that have not been measured are not failures. Open a server to inspect the evidence.
Server / capabilityLast probeMedian latencyChecks passedLast checked
CongressMCP

Federal and 50-state legislative data for AI: bills, text, votes, members, and committees.

GovernmentData access / search

Requires authNot measured4 / 22
Errandkit Census Tract & Demographics

Geocode US addresses to census tracts and add ACS demographics. Runs on Apify.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
Requires authNot measured4 / 22Not checked yet
FirmTape Geo - public records of world events

Geopolitical OSINT: sanctions, NOTAMs, maritime warnings, outages, conflict records with sources

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
GovCon MCP by G2X

Federal opportunities, awards, agencies and companies from G2X, in any AI agent.

GovernmentData access / search

Requires authNot measured4 / 22
GWIX

Global market intelligence from premier data partners and government agencies, with citations.

GovernmentKnowledge & memory

Requires authNot measured4 / 22Not checked yet
HARBOR Port

Hosted MCP servers for US federal data: 19 servers, 147 tools, one endpoint.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
HiringCensus

Is this company actually hiring, or is the board just still up? Real dates on 187,923 roles.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
HojinCheck — Japanese corporate verification API (hojin = 法人/corporate entity)

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

GovernmentPayments & trading

Requires authNot measured4 / 22Not checked yet
InsiderCat

Congress and corporate insider trades, portfolio holdings, performance, sentiment and ownership.

GovernmentData access / search

Requires authNot measured4 / 22
Instaport

Your portfolio plus Congress, top funds, insiders, analysts and social signals, explained by AI.

GovernmentData access / search

Requires authNot measured4 / 22
Invokely official statistics

Query official statistics through MCP, with periods, places and citable sources in every answer.

GovernmentCode & DevOps

Requires authOutdated checkNot measured4 / 22
Kempt Horizon Data Toolkit

17 read-only tools: web pages to Markdown, data cleaning, SEC EDGAR, Federal Register and grants.

GovernmentFile & docs

Requires authNot measured4 / 22
Kresmion

SEC filings and financials with accession links, insider and congress trades, macro. OAuth or key.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
newlyraised

New SEC Form D raises and $1M+ SBA loans in six US metros, linked to government records.

GovernmentData access / search

Requires authNot measured4 / 22
NextBid — Government Bids for AI

Search open U.S. federal, state and local government bids and read their documents. Paid; trial.

GovernmentFile & docs

Requires authNot measured4 / 22Not checked yet
Olympus government data

U.S. government data with provenance: Census demographics, SST sales tax rates, SEC financials.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
OpenCityRecord

City council meetings, transcripts, votes, and documents for U.S. cities, with citations.

GovernmentFile & docs

Requires authOutdated checkNot measured4 / 22
Parser Club

Telegram/VK audience scraping, marketplaces, Russian government registers. Free open dataset.

GovernmentCommunication & messaging

Requires authNot measured4 / 22Not checked yet
PERM Tracker

PERM, prevailing wage and H-1B case status, DOL's queue and the visa bulletin, from federal records

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
Requires authNot measured4 / 22Not checked yet
PrimeRFP SCOUT — Govcon Intelligence MCP

Federal+SLED govcon MCP: SAM, USASpending, recompete, hearings, policy intel, search. Private AI.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
Programmable

Find companies from public records, enrich domains, find work-email formats and run sales agents.

GovernmentCommunication & messaging

Requires authNot measured4 / 22Not checked yet
Provider-mandate census for agent credentials

Find unflagged agent OAuth clients before the mandate lock — signed per-client census verdicts.

GovernmentData access / search

Requires authOutdated checkNot measured4 / 22

Automated measurements. Not a rating. Unmeasured checks are not failures. How to read the evidence