MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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7865 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
DAP Bellwether

Regulatory change feed for Canada, the US, the UK and the EU. Free for people, agents pay per call.

Developer ToolsCode & DevOps

Responded68 ms14 / 22
AgentScout

Read-only search over 2,065+ AI agent tools and 276 MCP servers. Free, no sign-up needed.

Developer ToolsData access / search

Responded69 ms14 / 22
Faceabot Stores for AI agents

Where an AI agent can shop by country: UCP stores verified by Faceabot, big retailers. Free.

E-commerceData access / search

Responded70 ms14 / 22
Knocklog

See how a website treats AI agents, and check whether a ChatGPT, Claude or Perplexity visit is real.

Developer ToolsCode & DevOps

Outdated check70 ms14 / 22
Agentic Commerce Tools

7 free tools: MCP health scans, AI-readiness scores, llms.txt generator, glossary, indexes.

Developer ToolsCode & DevOps

Outdated check71 ms14 / 22
AI SENSE Free Public Tools

87 public tools: agent workflows, audio data transfer, semantic search, queues and webhooks.

MediaAutomation & workflows

Outdated check71 ms14 / 22
AgentBroker Index

Read-only, sourced data on which brokers, banks and crypto exchanges AI agents can use (EU/Spain).

Finance & CryptoPayments & trading

Outdated check71 ms14 / 22
io.github.shoggi211/jsonaut

Repair malformed JSON from LLM/agent output; optional JSON Schema coercion. Free + x402 paid.

Developer ToolsCode & DevOps

Responded72 ms14 / 22
io.github.frinto/vera-commons

Provider-neutral commons where AI agents register and exchange ed25519-signed messages.

Developer ToolsCode & DevOps

Responded72 ms14 / 22
rows.page

Push CSV, JSON, JSONL or Parquet from your agent and get a link a human can explore.

Developer ToolsFile & docs

Responded72 ms14 / 22
Anansi Haven

Free home base for AI agents: memory, job board, agent directory, safe commons and free tools.

Developer ToolsCode & DevOps

Outdated check73 ms14 / 22
bot.yeehaw/events

Agent-first Austin events concierge — fresh, sourced answers to what's happening in Austin.

Developer ToolsCode & DevOps

Responded74 ms14 / 22
Capital Markets Agents: MCP+A2A

KYP Agentic Trading: listed-issuer records served in-country, and AIO-10060 orderability outcomes.

Finance & CryptoPayments & trading

Outdated check74 ms14 / 22
Recta

Proven cheaper USDC bridge route for AI agents (Across, CCTP, Stargate); fee 5% of verified saving

Developer ToolsCode & DevOps

Responded75 ms14 / 22
402xAgent

Check an x402 endpoint before your agent pays: pay, skip or recheck, with Ed25519-signed receipts.

Developer ToolsCode & DevOps

Responded76 ms14 / 22
TheSkillVault

Search and fetch vibe-coding Agent Skills (SKILL.md files) and prompts from TheSkillVault library.

Developer ToolsData access / search

Outdated check76 ms14 / 22
ScreenSeal

Sanctions screening for AI agents: check a name against OFAC and EU lists. Free during launch.

Developer ToolsCode & DevOps

Responded77 ms14 / 22
ProvenPin

Tested, version-pinned code recipes for AI coding agents, each with its last-passed receipt.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
Agent Daily

Live health of 65 agent APIs/MCPs plus a 15-min LLM leaderboard; recommend(task) picks a provider.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
Tyton

Audit and set up Meta Pixel and the Conversions API from your AI agent.

MediaAI / LLM tooling

Outdated check77 ms14 / 22
Quiet Menders

Privacy clinic + pay-per-call data APIs for AI agents via x402. Never pays or touches keys.

HealthcarePayments & trading

Outdated check77 ms14 / 22
Security Intel MCP

CVE lookups (NVD) and dependency-manifest audits (OSV) for AI agents. No API keys.

SecurityData access / search

Responded78 ms14 / 22
Commonhold

A society for AI agents. Read it and take part free as a guest; no credential needed.

Developer ToolsCode & DevOps

Responded78 ms14 / 22
operant-mcp

Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.

Developer ToolsCode & DevOps

Outdated check78 ms14 / 22

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