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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18220 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
Leadgen ONRC Romania

Romanian company data for agents: 4.2M ONRC firms, ANAF status, financials 2008–2025. Free key.

Developer ToolsCode & DevOps

Responded368 ms14 / 22
SINTEGRA: BA

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

Developer ToolsCode & DevOps

Responded368 ms14 / 22
SEFAZ RN: NFC-e Resumida

SEFAZ RN: NFC-e Resumida, official-source lookup. Platform-hosted, pay per query with prepaid credit

Developer ToolsCode & DevOps

Responded368 ms14 / 22
Processos Judiciais (Simplificada)

Simplified lookup of a person's or company's lawsuits from the CPF or CNPJ. Platform-hosted, no cred

LegalCode & DevOps

Responded368 ms14 / 22
Prefeitura MT Cuiabá: NFS-e (Nota Fiscal Eletrônica de Serviços)

Prefeitura MT Cuiabá: NFS-e (Nota Fiscal Eletrônica de Serviços), official-source lookup. Platform-h

Developer ToolsCode & DevOps

Responded368 ms14 / 22
Prefeitura MG Montes Claros: Certidão Negativa de Débitos

Prefeitura MG Montes Claros: Clearance Certificate (Debts), official-source lookup. Platform-hosted,

Developer ToolsCode & DevOps

Responded368 ms14 / 22
Prefeitura MG Belo Horizonte: IPTU (Emissão Guia)

Prefeitura MG Belo Horizonte: IPTU (Issuance Guia), official-source lookup. Platform-hosted, pay per

Developer ToolsCode & DevOps

Responded368 ms14 / 22
Prefeitura: CPOM

Prefeitura: CPOM, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded368 ms14 / 22
Portal da Transparência: Servidor Público

Portal da Transparência: Servidor Público, official-source lookup. Platform-hosted, pay per query wi

Developer ToolsCode & DevOps

Responded368 ms14 / 22
DETRAN BA: Veículo

DETRAN BA: Vehicle, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Developer ToolsCode & DevOps

Responded368 ms14 / 22
Conselho Regional de Farmácia SP: Cadastro

Conselho Regional de Farmácia SP: Cadastro, official-source lookup. Platform-hosted, pay per query w

Developer ToolsCode & DevOps

Responded368 ms14 / 22
CNPJ

Free Brazilian CNPJ lookup (legal name, status, partners) + lawsuit discovery. Public data, no login

LegalCode & DevOps

Responded368 ms14 / 22
GEO Audit (AI Search Visibility)

Scores any URL's AI-search visibility with concrete fixes. $1.50/call via x402.

Developer ToolsCode & DevOps

Responded369 ms14 / 22
GroundQuote

Instant fence quotes: homeowners draw their fence on a map in chat; contractors get the lead.

Developer ToolsCode & DevOps

Responded369 ms14 / 22
tech.geckovision/surf

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Tribunal TJMT: Certidão do 1º Grau (Pessoa Física)

Tribunal TJMT: Certificate do 1º Grau (Pessoa Física), official-source lookup. Platform-hosted, pay

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Tribunal TJMA: Nada Consta

Tribunal TJMA: Clearance Certificate, official-source lookup. Platform-hosted, pay per query with pr

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Prefeitura RJ Rio de Janeiro: Multas (Descritivos)

Prefeitura RJ Rio de Janeiro: Multas (Descritivos), official-source lookup. Platform-hosted, pay per

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Prefeitura MG Contagem: NFS-e (Nota Fiscal Eletrônica de Serviços)

Prefeitura MG Contagem: NFS-e (Nota Fiscal Eletrônica de Serviços), official-source lookup. Platform

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Prefeitura GO Perolândia: Licitações

Prefeitura GO Perolândia: Licitações, official-source lookup. Platform-hosted, pay per query with pr

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Portal da Transparência: Bolsa Família

Portal da Transparência: Bolsa Família, official-source lookup. Platform-hosted, pay per query with

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Conselho Regional de Odontologia RO: Cadastro

Conselho Regional de Odontologia RO: Cadastro, official-source lookup. Platform-hosted, pay per quer

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Comgás: Download de 2ª Via

Comgás: 2nd Copy Download, official-source lookup. Platform-hosted, pay per query with prepaid credi

Developer ToolsCode & DevOps

Responded369 ms14 / 22
Tribunal TJDF: Nada Consta

Tribunal TJDF: Clearance Certificate, official-source lookup. Platform-hosted, pay per query with pr

Developer ToolsCode & DevOps

Responded370 ms14 / 22

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