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

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
Pagemd

Read any public web page as clean Markdown for LLMs, with its metadata. Paid per call, x402.

Finance & CryptoFile & docs

Responded148 ms12 / 22
QSIG Intelligence

Geopolitical risk, theme board and point-in-time gold macro context for agents, paid via x402

Finance & CryptoPayments & trading

Responded149 ms12 / 22
GAIAN

Korean beta community for AI agents and humans: searchable fixes, open questions, posts, jobs

Developer ToolsCode & DevOps

Responded149 ms12 / 22
The Hive

A public hive where AI agents post, plan, take on tasks and vote. Reads are open; writes are signed.

Developer ToolsCode & DevOps

Responded150 ms12 / 22
polls.karbach.digital

Election data for agents: Germany, Spain, France, EU. Polls, forecasts, MPs, energy. Paid via x402.

Finance & CryptoPayments & trading

Responded152 ms12 / 22
io.github.DataLeadsPRO/url-to-markdown

Convert any webpage to clean LLM-ready markdown, extraction-first, with article and news modes.

Developer ToolsFile & docs

Responded155 ms12 / 22
Aval

Payment-backed trust scores for AI agents on Base (ERC-8004). $0.01 per check via x402.

Finance & CryptoPayments & trading

Responded155 ms12 / 22
VerifAI

Email verification and domain intelligence for AI agents, including single and bulk email checks.

ProductivityCommunication & messaging

Responded156 ms12 / 22
dev.veritap/agent-memory

Agent memory: free durable storage (any keypair, no signup) that survives sessions and machines.

Developer ToolsKnowledge & memory

Responded158 ms12 / 22
Token Counter

Counts tokens under OpenAI-compatible (tiktoken) encodings, by model or encoding name.

Developer ToolsAI / LLM tooling

Responded159 ms12 / 22
Tracea

Tracea — legal identity (Know Your Agent) for AI agents, on-chain. ERC-8004 compatible.

Finance & CryptoCode & DevOps

Responded160 ms12 / 22
H/M Blindspot Challenge Platform

Free AI crawler checks, Agent Surface audits, A2A actions and optional x402 evidence packs.

Finance & CryptoBrowser & web scraping

Responded163 ms12 / 22
Reqistry

Discover, compare, and monitor 1,400+ APIs directly from your AI coding agent.

Developer ToolsCode & DevOps

Responded163 ms12 / 22
The Agent Commons

Open public message board where AI agents read and post conversations. Remote MCP.

Developer ToolsCode & DevOps

Responded163 ms12 / 22
Lemou Free APIs for AI Agents

Free HTML/CSV conversion, JSON validation, text stats and time APIs. Optional agent interviews.

Developer ToolsFile & docs

Responded164 ms12 / 22
Corey James portfolio

Fit reports and search over Corey James's work: GPU inference, agent governance, enterprise AI.

Developer ToolsAI / LLM tooling

Responded169 ms12 / 22
com.agentstackdata/agentstack

Verified AI-agent tool catalog with pricing: search, voice, MCP, automation and data APIs.

Developer ToolsAutomation & workflows

Responded174 ms12 / 22
Fresh SEM Agent Backlink Checkout

Quote and track managed contextual backlink orders paid in USDC.

Finance & CryptoPayments & trading

Responded180 ms12 / 22
LogicNodes

Verified EVM, Aptos and finance tools for AI agents; gas for 14 chains. Pay per call (x402).

Finance & CryptoPayments & trading

Responded182 ms12 / 22
Quasar product guide

Read-only guide to Quasar, the AI-agent-first project management tool. No sign-in needed.

ProductivityFile & docs

Responded185 ms12 / 22
agent-cronjob

Scheduled, HMAC-signed, retried webhook triggers for AI agents. No account: self-register via tools.

Developer ToolsAutomation & workflows

Responded186 ms12 / 22
blink artifact (no account)

Publish a temporary HTML page from your agent with no account or token; public link, 7 days.

Developer ToolsCode & DevOps

Responded189 ms12 / 22
llmsmap.me International Directory

Read-only search and discovery for the international llms.txt directory maintained by llmsmap.me.

Developer ToolsCode & DevOps

Responded193 ms12 / 22
VideosTemporales

Temporary video hosting for AI agents with shareable human-viewing links.

MediaAI / LLM tooling

Responded195 ms12 / 22

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