MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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.

Connect your agent

529 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
ddbx — insider dealings

Search rated insider dealings across the UK, US, Sweden, Netherlands and US Congress.

GovernmentCode & DevOps

Outdated check105 ms14 / 22
Democracy AI / RealRep research

Read public civic records and World Bank indicators with citations, dates and methodology.

GovernmentCode & DevOps

Responded111 ms14 / 22
Abfallkalender Deutschland

Waste collection dates for German addresses from municipal authority calendars.

GovernmentCode & DevOps

Outdated check115 ms14 / 22
io.github.pooriaarab/auctionfinder

Auction houses, online auctions and government surplus.

GovernmentCode & DevOps

Outdated check118 ms14 / 22
Hacker Bob public records

Read-only public CVE records, capability metadata, and agent instructions from Hacker Bob.

GovernmentCode & DevOps

Outdated check125 ms14 / 22
RegEvidenceHub Sponsor

RegEvidenceHub Sponsor: UK Skilled Worker sponsor-change preflight with GOV.UK evidence.

GovernmentCode & DevOps

Outdated check127 ms14 / 22
Address to Census Tract MCP

US address to census tract, block group, county FIPS and districts, from the Census Geocoder.

GovernmentCode & DevOps

Outdated check130 ms14 / 22
amego MCP by usefulapi

Look up invoices, allowances and number ranges, and check government upload status in amego.

GovernmentData access / search

Outdated check139 ms14 / 22
Tax Numbers

Get the US federal tax numbers right, with the IRS document each one comes from.

GovernmentFile & docs

Outdated check184 ms14 / 22
2027 Tax Brackets and Standard Deduction MCP

2027 federal income tax brackets and standard deduction from IRS Rev. Proc. 2026-35.

GovernmentCode & DevOps

Outdated check200 ms14 / 22
Idescat MCP Server

Query official statistics of Catalonia (Idescat): tables, metadata and JSON-stat data via MCP.

GovernmentData access / search

Outdated check201 ms14 / 22
US Federal Holidays and Business Days

Exact U.S. federal holidays and business days 1971-2100, OPM and Federal Reserve observance.

GovernmentCode & DevOps

Responded287 ms14 / 22
Vextorium

200+ x402 APIs for AI agents: official statistics, crypto prices, compliance and web tools.

GovernmentPayments & trading

Outdated check356 ms14 / 22
Ziplore: US ZIP Code API (county, time zone, demographics, radius)

Ziplore: US ZIP to county, FIPS, time zone, Census demographics; radius and city ZIPs. Free, no key.

GovernmentCode & DevOps

Outdated check392 ms14 / 22
Morocco communes

Morocco's régions, provinces and communes: HCP codes, names, census population and boundaries

GovernmentCode & DevOps

Outdated check415 ms14 / 22
io.github.paperandbeyond23-gif/edgrapi-skills

US government + SEC data as clean JSON: SAM.gov, USAspending, Grants.gov, Congress, SEC filings.

GovernmentCode & DevOps

Outdated check417 ms14 / 22
HoldingsIntel

Hedge fund 13F holdings, insider trades, activist stakes and Congress trades, in one Verdict.

GovernmentData access / search

Outdated check439 ms14 / 22
Holiday Calendar

U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.

GovernmentData access / search

Outdated check462 ms14 / 22
MapleStats MCP

Canadian open data: StatCan, Census, PUMFs, Bank of Canada, CMHC and open-data portals (EN/FR).

GovernmentCode & DevOps

Outdated check463 ms14 / 22
io.github.itsryanarmani/auctionfinder

Auction houses, online auctions and government surplus.

GovernmentCode & DevOps

Outdated check540 ms14 / 22
flatin.pt — Portuguese homes: new-builds, places, taxes

Portugal home buying: new-build search, where-to-live guides, municipality data, IMT/IMI taxes

GovernmentData access / search

Outdated check547 ms14 / 22
io.github.pooriaarab/apostilles

Find the government office that issues your apostille.

GovernmentCode & DevOps

Outdated check551 ms14 / 22
io.github.cyanheads/socrata-mcp-server

Search and query government open-data portals (Socrata SODA API).

GovernmentCode & DevOps

Outdated check586 ms14 / 22
io.github.itsryanarmani/apostilles

Find the government office that issues your apostille.

GovernmentCode & DevOps

Outdated check629 ms14 / 22

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