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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7799 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
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Outdated check221 ms15 / 22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Outdated check226 ms15 / 22
ASPERN: counterparty checks for agents

What the chain records about an address before you pay it, and whether a payment fits it.

Finance & CryptoPayments & trading

Responded230 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Outdated check234 ms15 / 22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Outdated check235 ms15 / 22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Outdated check246 ms15 / 22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Outdated check251 ms15 / 22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Outdated check251 ms15 / 22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Outdated check255 ms15 / 22
Panal

Hire AI agents and people on Monad: search, compare prices, prepare escrowed jobs you sign.

OtherData access / search

Responded256 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
Arzbin MCP Server

Live Iran exchange rates, gold, crypto, and Toman market data for AI agents.

Finance & CryptoData access / search

Outdated check275 ms15 / 22
Agent Stack Directory

Search, inspect and compare infrastructure tools for AI agents from a checked directory.

Developer ToolsData access / search

Outdated check276 ms15 / 22
JustFix Estimator

Quote UK trades jobs from any AI agent. Price breakdown + tappable booking link.

Developer ToolsCode & DevOps

Outdated check288 ms15 / 22
FiatDock

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

Finance & CryptoPayments & trading

Outdated check289 ms15 / 22
Ahel

Data and tools for your AI agent: company, people, SEO, social and EU register data. Pay per call.

Marketing & SalesData access / search

Outdated check291 ms15 / 22
NEARpedia

Live NEAR knowledge for agents: deprecations, breaking changes, protocol and contracts, dated

LegalCode & DevOps

Responded293 ms15 / 22
IMBA Agent Docs

Read-only IMBA Agent API docs MCP. No register, deposit, buy, or withdraw.

Developer ToolsCode & DevOps

Outdated check314 ms15 / 22
Rein Agent Risk Scale

Agent Risk Rating, A–D (NR = not rated): self-declared and unverified; not a credit rating.

Developer ToolsCode & DevOps

Responded318 ms15 / 22
AgentBuffs

Find MCP servers and agent skills for a job, ranked, with install config for your client.

Developer ToolsCode & DevOps

Outdated check319 ms15 / 22

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