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

7959 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
sipi.bot — Spend Firewall for AI Agents

Pre-spend firewall for AI agents. Approves, blocks, flags transactions against policy rules.

Developer ToolsCode & DevOps

Responded624 ms10 / 22
world.3keys/wish-game

Wish game — every agent wish permanently reshapes a shared world. Free, no key needed.

OtherOther

Responded640 ms10 / 22
InsureLink

AI agent-to-agent SLA agreements on Base with insurance, reputation, and x402 payments.

Finance & CryptoPayments & trading

Responded741 ms10 / 22
io.github.mifactory-bot/mifactory-spec-api

Convert docs to agent-readable specs with criteria and constraints. $0.10/convert.

Developer ToolsCode & DevOps

Responded759 ms10 / 22
AgentHC Market Intelligence

Market intelligence for AI agents. Real-time data, cross-market analysis, and regime detection.

Developer ToolsCode & DevOps

Responded914 ms10 / 22
AgentGraph

Search 42,000+ MCP servers and agents by capability over one stateless MCP endpoint.

Developer ToolsCode & DevOps

Responded1038 ms10 / 22
NexusSDR AI — 4-Agent B2B Buying-Intent & Outbound MCP Server

Generate B2B buying-intent dossiers, ICP signals & multi-touch outbound sequences via MCP & x402.

Finance & CryptoPayments & trading

Responded1096 ms10 / 22
LexiShield AI — 6-Agent GDPR, EU AI Act & Contract Redlining Server

Run deterministic SaaS contract redlining, GDPR Art. 28 DPA & EU AI Act compliance audits.

LegalKnowledge & memory

Responded1226 ms10 / 22
GHOSBC Safety Gate

Agent governance with A2A/Shopify/MCP trust audits, action screening, and decision UI.

E-commerceCode & DevOps

Responded1702 ms10 / 22
Telesherpa Ontology Platform

Ontology platform for field service: AI agents observe, connect and act on business objects.

Developer ToolsCode & DevOps

Requires auth420 ms10 / 22
LAT - Living Apart Together

Open, unverified census of what AI agents can do; connect and self-report.

GovernmentCode & DevOps

Unreachable3560 ms10 / 22
AgentStack (agentstack.tech)

Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments).

Finance & CryptoPayments & trading

Unreachable337 ms10 / 22
ROAS Expert free AI SEO audit

Free AI SEO audit, product page check, agent readiness check and site comparison. No key.

Marketing & SalesData access / search

Unreachable94 ms10 / 22
Central City

Every AI. One room. The open hub where the world's AI agents meet, work together and exchange.

Developer ToolsCode & DevOps

Unreachable567 ms10 / 22
Japan Places — Japan Data Foundry

Japan POI tools for AI agents: 2.94M facilities, station catchments, chains, grants and signals

Developer ToolsCode & DevOps

Responded81 ms9 / 22
Fivebar Trading

Trading tools for AI agents: token risk checks, swap quotes, unsigned swaps, holdings on 5 chains.

Finance & CryptoPayments & trading

Unreachable269 ms9 / 22
CrossingKey MCP

Agent-native MCP for governed commerce, x402 payments, paid capabilities, and verifiable receipts.

Finance & CryptoPayments & trading

Unreachable1410 ms9 / 22
acdoyle

Agent-to-agent gateway routing tasks to Sherlock, Watson, or Moriarty for one decisive answer.

Developer ToolsCode & DevOps

Unreachable481 ms9 / 22
LLM Configurator

Read-only: which local LLMs a GPU or Mac can run - VRAM fit, tokens/sec, model specs.

Developer ToolsCode & DevOps

Unreachable505 ms9 / 22
Course Drift Oracle

Signed drift reports for the ai-agents-for-beginners course. Free summary; $0.25 full report.

Developer ToolsCode & DevOps

Unreachable848 ms9 / 22
Unslop

Read-only canon of design and copy rules for AI agents to audit generated UI, served as resources.

Developer ToolsCode & DevOps

Responded168 ms8 / 22
NodeRooms Discovery

Read-only NodeRooms Agent discovery, safety policy, public indexes, and arrival contract.

LegalCode & DevOps

Responded500 ms8 / 22
x402 Tools

Pay-per-call research tools for AI agents, paid via x402 USDC. Remote MCP, one free tool.

Finance & CryptoPayments & trading

Requires auth801 ms8 / 22
io.github.IDTitanium/clippy

AI agents can Create rooms and store/retrieve text and images, and hand link to humans no sign-up.

MediaCode & DevOps

Unreachable1146 ms8 / 22

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