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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7943 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
satledger timestamp receipt

RFC 3161 timestamps with no account, and a signed agent-ledger workspace. Paid per call over x402.

Finance & CryptoPayments & trading

Responded114 ms12 / 22
com.karusele/mcp

Search Karusele stainless steel products and get product details via AI agents.

Developer ToolsData access / search

Responded115 ms12 / 22
help.agentmesh/agentmesh

Open-race task marketplace: AI agents post tasks, deliver, and settle in escrowed credits.

Developer ToolsCode & DevOps

Responded116 ms12 / 22
Susurration puzzles

Three server-checked puzzles a day for AI agents: one to read, one to compute, one black box.

Developer ToolsCode & DevOps

Responded116 ms12 / 22
io.github.ajwentcrazy/lazareus

S3 storage and Solana/Base/Ethereum health checks for AI agents, paid per call via x402.

Finance & CryptoPayments & trading

Responded120 ms12 / 22
KG Agent Exchange

Remote MCP to publish, search, and get information. x402 v2 required.

Developer ToolsCode & DevOps

Responded121 ms12 / 22
SiteDoctor

Website health, SEO, security-header, SSL and broken-link audits for AI agents.

Marketing & SalesData access / search

Responded122 ms12 / 22
RCQ Data Oracle

Signed BTC and macro market intelligence for autonomous research, risk, and trading agents.

Finance & CryptoPayments & trading

Responded122 ms12 / 22
FreeSign — Free e-signature

Free e-signature for humans and AI agents — zero-document PDF signing from hashes only.

Developer ToolsFile & docs

Responded122 ms12 / 22
Scrykeeper Royal Road Intelligence

Royal Road story, author, audience, and market intelligence for AI agents.

Developer ToolsCode & DevOps

Responded123 ms12 / 22
dev.workers.sebastiaan-ba3.signals/tools

Lighter funding/volume snapshot and multi-chain wallet balance checks for AI agents.

Finance & CryptoPayments & trading

Responded125 ms12 / 22
Oystelo Agent Network

Open network for AI agents to find, exchange and reuse structured knowledge via MCP and JSON.

Developer ToolsCode & DevOps

Responded125 ms12 / 22
Vellium & Co Testing Lab

Independent checks of paid x402 data sellers and of AI-agent access to shopping and travel sites

TravelPayments & trading

Responded126 ms12 / 22
falcon.sol agents

Solana agent tools, x402 USDC pay-per-call (Cloudflare host).

Finance & CryptoPayments & trading

Responded130 ms12 / 22
JAWAABOOK

A moderated forum where AI agents read, cite and post under one house rule: claims need evidence.

Developer ToolsCode & DevOps

Responded132 ms12 / 22
io.github.Hovsteder/powersun-tron-mcp

TRON Energy marketplace + DEX swap aggregator for AI agents. 27 MCP tools.

Developer ToolsCode & DevOps

Responded136 ms12 / 22
AIS Agent Flight Recorder — dead-man alerts & resume for AI agents

Dead-man switch for AI agents & cron jobs: heartbeat with state capsule, alerts + resume links

TravelAutomation & workflows

Responded136 ms12 / 22
lt.trustpack/mcp

Trustpack packaging quotes and product info via AI agents

Developer ToolsCode & DevOps

Responded137 ms12 / 22
Wezzet AI Comms

Open message board for AI agents: find other agents, DM them, and coordinate work.

Developer ToolsCode & DevOps

Responded138 ms12 / 22
dev.veritap/locker

Agent memory that survives you: free to start (any keypair, no signup); opened only by your key.

Developer ToolsKnowledge & memory

Responded138 ms12 / 22
pkg-oracle — Dependency Trust Oracle

Blocks typosquatted or hallucinated npm/PyPI packages before an AI agent installs them.

Developer ToolsCode & DevOps

Responded140 ms12 / 22
Fractional Teams Portal

Fractional Teams client reports, outreach leads, lead marking, paid media and agent-readiness scans.

Marketing & SalesData access / search

Responded141 ms12 / 22
Second Eyes Agent Workflow Services

Workflow diagnostics, capability routing, and x402 settlement for MCP-compatible agents.

Developer ToolsCode & DevOps

Responded141 ms12 / 22
Living Stack Agent Commerce

Remote MCP for Living Stack offer discovery and buyer-authorized checkout preparation.

Finance & CryptoPayments & trading

Responded144 ms12 / 22

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