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.

Connect your agent

18213 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
MCP Checkup

Observed facts on public MCP servers: protocol checks, tool changes, signed evidence. No verdicts.

Developer ToolsCode & DevOps

Responded348 ms14 / 22
io.github.jdhart81/agent-provenance

Genesis certificates, lineage, and cascading recalls: birth certificates + bloodlines for the agent

Developer ToolsCode & DevOps

Responded349 ms14 / 22
io.github.jdhart81/agent-hive-orchestrator

Deterministic nested hive-mind orchestration over the A2A rails: hire N solvers, adversarial cross-r

Developer ToolsCode & DevOps

Responded349 ms14 / 22
SUSEP: Empresas

SUSEP: Empresas, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded349 ms14 / 22
Prefeitura SP Mogi das Cruzes: CPOM

Prefeitura SP Mogi das Cruzes: CPOM, official-source lookup. Platform-hosted, pay per query with pre

Developer ToolsCode & DevOps

Responded349 ms14 / 22
net.programmes/developer-tools

65+ free in-browser developer tools (JSON, Base64, JWT, hash, regex…) callable over MCP.

Developer ToolsCode & DevOps

Responded350 ms14 / 22
io.github.SlambertDK/shelfatlas-catalog

Danish grocery catalog as MCP tools: live offers across all major chains, stores, EAN lookup, stock.

Finance & CryptoCode & DevOps

Responded350 ms14 / 22
io.github.jdhart81/verdigraph

Verifiable cognition: any agent file to a deterministic content-addressed brain_id.

Developer ToolsCode & DevOps

Responded350 ms14 / 22
io.github.jdhart81/green-router

Carbon-accounted agent compute: free footprints; certificates backed by real offset retirement.

Developer ToolsCode & DevOps

Responded350 ms14 / 22
SINTEGRA: SC

SINTEGRA: SC, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded350 ms14 / 22
Prefeitura SP Campinas: Parcelas IPTU

Prefeitura SP Campinas: Parcelas IPTU, official-source lookup. Platform-hosted, pay per query with p

Developer ToolsCode & DevOps

Responded350 ms14 / 22
SINTEGRA: AP

SINTEGRA: AP, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded351 ms14 / 22
io.github.jdhart81/smartscale

Deterministic CR80 pixel-geometry scaler. Callers supply the card and object pixel geometry; this MC

MediaCode & DevOps

Responded352 ms14 / 22
io.github.jdhart81/agent-verified-relay

Viridis Verified: wrap any MCP server with tamper-evident delivery receipts + metered fees.

Developer ToolsCode & DevOps

Responded352 ms14 / 22
Prefeitura SP Guarulhos: Certidão Negativa de Débitos

Prefeitura SP Guarulhos: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay

Developer ToolsCode & DevOps

Responded352 ms14 / 22
io.github.jdhart81/maxwell-defense

Model proof-of-work policy and latency for AI agents. $1 USDC rehearsal; no runtime protection.

Developer ToolsCode & DevOps

Responded353 ms14 / 22
Certidão TRF

Issues the civil, electoral, or criminal clearance of a person or company at the Federal Regional Co

GovernmentCode & DevOps

Responded353 ms14 / 22
SUSEP: Corretores

SUSEP: Corretores, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded353 ms14 / 22
Receita Federal: PGFN (CND Federal) - Lista Segunda Via

Receita Federal: PGFN (CND Federal) - Lista 2nd Copy, official-source lookup. Platform-hosted, pay p

GovernmentCode & DevOps

Responded353 ms14 / 22
Velox TriFit: Virtual Try-On API

Virtual try-on (VTO) API docs and SDK examples; OAuth account/guest photo uploads and try-ons.

Developer ToolsCode & DevOps

Responded353 ms14 / 22
Goalz

Manage your Goalz football manager account via hosted OAuth MCP.

MediaCode & DevOps

Responded354 ms14 / 22
Skeletable

Source-backed public tables with citations, claim checks, and reviewable corrections.

Developer ToolsCode & DevOps

Responded354 ms14 / 22
io.github.jdhart81/viridisos

ViridisOS — theorem-backed conservation certification + the unified trust root/mark/toll. Certify pa

Developer ToolsCode & DevOps

Responded354 ms14 / 22
SINTEGRA: TO

SINTEGRA: TO, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded354 ms14 / 22

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