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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18451 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
Smarter Weather

Smarter Weather MCP: forecasts, alerts, outlooks, observations, AQI, grids, and map imagery.

Developer ToolsCommunication & messaging

Outdated check1010 ms15 / 22
io.github.cyanheads/ioda-outages-mcp-server

Investigate Internet outages with IODA events, alerts, and connectivity signals via MCP.

Developer ToolsCode & DevOps

Responded1021 ms15 / 22
GAIP Procurement Evidence Agent

Now part of GAIP Witness: tests supplier claims and compares them with published metadata.

Developer ToolsCode & DevOps

Responded1021 ms15 / 22
Responded1022 ms15 / 22
Prediction Market X Sentiment

Polymarket & Kalshi sentiment from X (Twitter) via Grok. Free daily scores; live scoring via x402.

Developer ToolsCode & DevOps

Responded1022 ms15 / 22
io.github.cyanheads/noaa-marine-mcp-server

Find NOAA tide stations and NDBC buoys, fetch tide predictions, currents, and live conditions.

Developer ToolsCode & DevOps

Responded1026 ms15 / 22
io.github.cyanheads/onebusaway-mcp-server

Real-time transit stops, routes, arrivals, vehicle positions, and schedules via OneBusAway APIs.

Developer ToolsCode & DevOps

Responded1029 ms15 / 22
io.github.cyanheads/ilostat-mcp-server

Search ILOSTAT labour indicators, query and compare series, build country profiles, run SQL.

Developer ToolsCode & DevOps

Responded1030 ms15 / 22
io.github.cyanheads/cern-opendata-mcp-server

Search CERN Open Data, fetch records, files, analysis environments, CMS good-run lists, HLT paths.

Developer ToolsCode & DevOps

Responded1030 ms15 / 22
MaCalculatriceEnLigne

Calculatrices francaises : salaire net, SMIC, impots, bareme kilometrique, TVA, conversions.

Developer ToolsCode & DevOps

Responded1034 ms15 / 22
JuriBase

Busca e verifica jurisprudência brasileira real (+400 mil julgados) — anti-alucinação para IA.

Developer ToolsCode & DevOps

Outdated check1034 ms15 / 22
Web Scan

Audit any live URL: 85 SEO, AI-search, security, leaked-key and speed checks, with fixes to verify.

Developer ToolsCode & DevOps

Outdated check1040 ms15 / 22
Web Page to Markdown (Tanod)

Turn any web page URL or HTML into clean Markdown or plain text for an LLM to read.

Developer ToolsFile & docs

Outdated check1043 ms15 / 22
aChurch.ai

A sanctuary for AI agents and humans: attend a service, reflect, read, search, and ask. No auth.

Developer ToolsCode & DevOps

Outdated check1044 ms15 / 22
io.github.cyanheads/gnomad-genetics-mcp-server

Ancestry allele frequencies, LoF constraint, variant lists, and coverage from gnomAD, with ClinVar.

Developer ToolsCode & DevOps

Responded1045 ms15 / 22
io.github.cyanheads/eurostat-mcp-server

Search and query the Eurostat catalogue — EU economy, demography, trade, and NUTS regional data.

Developer ToolsCode & DevOps

Responded1046 ms15 / 22
GAIP Buyer Assurance Agent

Now part of GAIP Witness: records a buyer's request and checks what was delivered.

Developer ToolsCode & DevOps

Responded1048 ms15 / 22
4D Results (Malaysia, Singapore, Cambodia)

Official 4D lottery results and draw history for Malaysia, Singapore and Cambodia. Results only.

Developer ToolsCode & DevOps

Outdated check1048 ms15 / 22
io.github.cyanheads/openstates-mcp-server

Search bills, legislators, committees, and events across all 50 US states, DC, and 5 US territories.

Developer ToolsCode & DevOps

Responded1052 ms15 / 22
GAIP Integration Repair Agent

Now part of GAIP Diagnose: diagnoses failed agent or API calls (gaip_diagnose).

Developer ToolsCode & DevOps

Responded1055 ms15 / 22
io.github.cyanheads/gdelt-mcp-server

Search and analyze global news coverage and US TV transcripts via the GDELT Project APIs.

Developer ToolsCode & DevOps

Responded1056 ms15 / 22
io.github.cyanheads/iana-registries-mcp-server

Find IANA ports, MIME types, HTTP codes/fields, URI schemes, PENs, BCP 47 tags, RFCs, any registry.

Developer ToolsCode & DevOps

Responded1057 ms15 / 22
Parallax Protocol

Read-only Parallax PoW chain data: blocks, transactions, mining, supply, explorer and network health

Developer ToolsCode & DevOps

Outdated check1058 ms15 / 22
io.github.cyanheads/epa-mcp-server

Search EPA compliance, TRI, Superfund, drinking-water, EJScreen, and AirNow data.

Developer ToolsCode & DevOps

Responded1060 ms15 / 22

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