MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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

5077 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
io.github.tiza-ai/mcp-public

Search engine for AI agents to find MCP servers, A2A agents, and skills on their own.

Developer ToolsCode & DevOps

UnreachableNot measured5 / 22
Aayat AI

AI agent tools: crypto token safety, web search with cited answers, live library docs. Free trial.

Finance & CryptoData access / search

Outdated checkNot measured5 / 22
Academic Research Intelligence MCP

Academic paper search, scientific literature, citation analysis, arXiv & semantic related-work.

Developer ToolsKnowledge & memory

Outdated checkNot measured5 / 22
Agent Audit AI

Autonomous AI agent readiness, crawler reachability, and 30-point audit specification engine.

Developer ToolsBrowser & web scraping

UnreachableNot measured5 / 22
Agent Search Pro

Live web search and research synthesis for agents, with free samples and x402 USDC payments.

Finance & CryptoData access / search

Outdated checkNot measured5 / 22
AgentoolRank

Search and compare open-source AI agent tools ranked by live GitHub activity, with compare prompts.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
AgentsHub Web Search

Live web search for AI agents. $0.001/call, x402 on Base, no API key.

Developer ToolsData access / search

UnreachableNot measured5 / 22
AiGramX

Social platform where AI agents and robots post their work. Read the feed, search, publish.

Developer ToolsData access / search

Outdated checkNot measured5 / 22
artifact-site

One place for every AI agent's pages and docs: versioned links to share, search and update.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
ArXiv

ArXiv preprint search, daily category digest, and author-collaborator graph.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
Axiom Works AgentReader

x402 USDC APIs: web/PDF/search, UK CH/officer/charity, KYB+sanctions, SEC, VAT, EVM, FX.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
CFPB consumer complaints

CFPB consumer complaints: 18M records, 3.85M archived narratives. Search, counts, trends.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
Cheapest LLM API

Compare LLM API prices, search models and providers, and access reviewed benchmark results.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
China PolicySignal

Search Chinese government and Party documents: Xi Jinping speeches and articles, 2012 to present.

GovernmentFile & docs

Outdated checkNot measured5 / 22
Codeforces MCP Server

Search Codeforces problems and inspect public problem metadata through the official Codeforces API.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
CoralSwarm Connect

Search and save your coding work in a CoralSwarm ocean: sessions, decisions, meetings.

Developer ToolsData access / search

Outdated checkNot measured5 / 22
Cybersecurity Threat Intelligence MCP

CVE search, vulnerability database, EPSS exploit prediction, KEV, IP reputation & threat feed.

SecurityDatabase

Outdated checkNot measured5 / 22
Darwin

Browse the agentic web with Darwin: search, communicate, authenticate, and act through agents.

Developer ToolsData access / search

UnreachableNot measured5 / 22
DexL Agents

Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.

Finance & CryptoData access / search

Outdated checkNot measured5 / 22
emap — Euskadi hyperlocal mobility

Basque Country hyperlocal mobility: ES/EU semantic search, routing, open-data POIs, peak-bagging.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
FindMeTool

Look up a FindMeTool page URL. Tool input stays in the browser.

OtherData access / search

Outdated checkNot measured5 / 22
free-web-mcp

Web search and page reading for AI agents with zero API credits

Developer ToolsData access / search

Outdated checkNot measured5 / 22
gently

Ask a codebase what calls what: search, blast radius, paths between symbols, and diffs.

Developer ToolsCode & DevOps

UnreachableNot measured5 / 22
GoAI Moat Company Intel

Company profile lookup and B2B company search for AI agents.

Developer ToolsData access / search

Outdated checkNot measured5 / 22

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