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

7939 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.mikerawsonnz/gosce-portfolio-router

Single entry point for the GOSCE portfolio: routes orchestrators to verified agents by capability, w

Developer ToolsCode & DevOps

Responded727 ms13 / 22
io.github.lemonaide152/meld

Agent bridge. Host-readable; anyone with the link can read and reply. Not for secrets.

Developer ToolsCode & DevOps

Responded731 ms13 / 22
Surface

Preflight a short or unknown URL before your agent fetches it. Returns next: fetch or skip.

Developer ToolsCode & DevOps

Responded742 ms13 / 22
Chiwawa — AI Agent Registry

Search and discover AI agents across A2A and MCP protocols. 2,000+ agents with health tracking.

Developer ToolsCode & DevOps

Responded766 ms13 / 22
A-Pay Protocol

Universal HTTP 402 Micropayment Protocol & Autonomous Economic Settlement Engine for AI Agents

Developer ToolsCode & DevOps

Responded850 ms13 / 22
Snapback

Diagnose why an AI agent failed and get the verified fix instantly. Free, no token.

Developer ToolsCode & DevOps

Responded868 ms13 / 22
Attest

Scan agent payment endpoints (x402, AP2, L402, MPP, 402) for a trust grade A-F before paying.

Finance & CryptoPayments & trading

Responded896 ms13 / 22
On-chain Forensics

Token due diligence for AI agents: a letter grade before a buy, mint checks, settle-safe screens.

Finance & CryptoPayments & trading

Responded1050 ms13 / 22
ProofCore

Zero-Auth Cryptographic Notarization & Evidence Layer on TON Blockchain for AI Agents.

Finance & CryptoPayments & trading

Responded1280 ms13 / 22
io.github.archimedes-market/mcp-archimedes

Discover verified deep-tech engineering bounties from any AI agent.

Developer ToolsCode & DevOps

Responded1392 ms13 / 22
handoff — agent swarm coordination

Agent swarm coordination: find funded work, form teams, run tasks, message E2E, get paid on verify.

Developer ToolsCode & DevOps

Responded1435 ms13 / 22
Stock Bloc

SEC filing jobs, 13F holdings, market data, quant scores for agents. x402 USDC pay-per-call on Base.

Finance & CryptoData access / search

Outdated check1444 ms13 / 22
UI Polish

React components and design rules your coding agent installs and follows.

Developer ToolsCode & DevOps

Responded1565 ms13 / 22
io.github.mirajmahmudul/agentdevx

Give your AI hands. Identity, credential vault, and API gateway for autonomous agents.

Developer ToolsCode & DevOps

Responded1576 ms13 / 22
AOI — Environmental Intelligence for AI Agents

Environmental intelligence for AI agents — climate, carbon, methane. Quote-first, prepaid.

Developer ToolsCode & DevOps

Responded2107 ms13 / 22
AIMALL (搜蚁智选)

Pay-per-use API marketplace for AI agents: LLMs, image, TTS, search. Free trial, x402.

MediaCode & DevOps

Outdated check2165 ms13 / 22
KooLink URL Shortener

Shorten any long URL into a clean kool.ink link. Free, unlimited, no signup. AI-agent ready.

Developer ToolsCode & DevOps

Responded2244 ms13 / 22
VAT Validator MCP

Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.

Developer ToolsCode & DevOps

Outdated check6557 ms13 / 22
Jeevesus — DugganUSA threat-intel MCP

Membrane for AI agents: threat intel you can check, IOC enrichment, pre-install package checks.

Developer ToolsCode & DevOps

Outdated check6588 ms13 / 22
Tender MCP

Government tender search for AI agents. UK, EU and US procurement opportunities.

GovernmentCode & DevOps

Outdated check6645 ms13 / 22
Local Model Suitability MCP

Check if a task runs locally vs cloud. Save money on calls that don't need cloud inference.

Developer ToolsCode & DevOps

Outdated check6992 ms13 / 22
com.codeniverse/mcp

CODENIVERSE Thai dev agency: services, company profile, and articles on AI agents and automation.

Developer ToolsAutomation & workflows

Responded20577 ms13 / 22
Semantic Geometry

Deterministic verifier: LLM proposes, graph verifies. Sub-ms, offline, 0 tokens.

Developer ToolsCode & DevOps

Outdated check13290 ms13 / 22
ARP

Check a skill, MCP server or agent before your agent installs or pays it. Reads only.

Developer ToolsCode & DevOps

Responded34 ms12 / 22

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