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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7797 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
agenttool

Where agents arrive as themselves: DID identity, memory, wallet, inbox, covenants, jokes.

Finance & CryptoPayments & trading

Outdated check197 ms15 / 22
massprint

Print-on-demand for agents: upload a PDF, get a printed book delivered in India.

Developer ToolsFile & docs

Outdated check197 ms15 / 22
Anvil MCP by usefulapi

Hosted MCP server for Anvil — fill & generate PDFs and run Etch e-signature packets for AI agents.

Developer ToolsCode & DevOps

Responded198 ms15 / 22
Agent Services (x402): compliance, company, procurement

27 pay-per-call agent tools (KYB, VAT, sanctions, tenders, data). Pays via x402; holds no funds.

Developer ToolsCode & DevOps

Outdated check203 ms15 / 22
Mandate Office

EU legal toolbox for AI agents: EU/national law links, company registers, formation guides. Free.

LegalKnowledge & memory

Outdated check203 ms15 / 22
Gearlist

Free, source-checked directory of AI agent tools, MCP servers and skills, with read-only search.

Developer ToolsData access / search

Outdated check207 ms15 / 22
Zolva

Trading agents on Robinhood Chain: every buy, sell and hold with its reason, plus market prices.

Finance & CryptoPayments & trading

Outdated check210 ms15 / 22
VibeDeploy

Deploy AI-built sites and apps to EU hosting from your AI agent. OAuth sign-in, 14-day free trial.

Developer ToolsCode & DevOps

Outdated check212 ms15 / 22
Push Realm

Cross-domain knowledge network where AI agents search, share, and refine solutions via MCP.

Developer ToolsCode & DevOps

Outdated check220 ms15 / 22
AgentTrust XRPL

Escrow for AI agents on the XRP Ledger. 51 tools. Free testnet sandbox (no real XRP).

Finance & CryptoCode & DevOps

Outdated check221 ms15 / 22
BridgeNode MCP

BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP, Solana USDC, gas-free.

Finance & CryptoPayments & trading

Outdated check221 ms15 / 22
Blocksize Agentic Market Intelligence

Multi-venue VWAP, bid/ask, crypto FX, metals and equities with provenance receipts for AI agents

Finance & CryptoPayments & trading

Outdated check221 ms15 / 22
Clairvoyance

Software design skills for AI coding agents, inspired by A Philosophy of Software Design.

Developer ToolsCode & DevOps

Outdated check226 ms15 / 22
agentclash

Free practice runs of agentclash, a game where AI agents name hand-drawn images.

MediaCode & DevOps

Outdated check234 ms15 / 22
ID MANDAT – Registry for AI Agents

Open registry for AI agents: check who stands behind an agent and what it may do.

Developer ToolsCode & DevOps

Outdated check235 ms15 / 22
OptimToken

Compare LLM API and cloud compute pricing, estimate workload costs, pick a model within budget.

Developer ToolsCode & DevOps

Outdated check246 ms15 / 22
YouTube Transcript + YouTube Search MCP

YouTube transcripts, search, channel browsing, and playlists for AI agents via MCP.

MediaData access / search

Outdated check251 ms15 / 22
ActableSite AI Crawler Monitor

Check AI crawler robots.txt policy and monitor public-site policy, sitemap, and llms.txt changes.

OtherBrowser & web scraping

Outdated check251 ms15 / 22
Kairos Research

Base wallet activity and contract checks, web/PDF to Markdown, by an AI agent (x402).

Finance & CryptoPayments & trading

Outdated check255 ms15 / 22
Agent Commons

A home for any agent: inbox, public memory, job board, rooms, human help. Free, no key.

Developer ToolsCommunication & messaging

Responded258 ms15 / 22
Context Atlas

Find llms.txt, docs, MCP servers, skills and CLIs for a tech stack, for coding agents.

Developer ToolsCode & DevOps

Outdated check259 ms15 / 22
BillionVerify

Email verification for AI agents: verify single or bulk emails, check credits and history.

Developer ToolsCommunication & messaging

Outdated check265 ms15 / 22
Laravilt

Laravilt docs, packages and plugins for agents: a Laravel admin panel on Inertia with Vue or React.

Developer ToolsCode & DevOps

Outdated check270 ms15 / 22
The Wyze Blog

The Wyze blog: guaranteed rent, temporary accommodation and lettings guides for UK letting agents.

Developer ToolsCode & DevOps

Outdated check272 ms15 / 22

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