MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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
agbrowser

Browser sessions for agents: navigate, interact, read and screenshot. Pay in stablecoins.

Finance & CryptoPayments & trading

Responded281 ms12 / 22
Agent Data API

Token risk, wallet profiles, OFAC screening, whale trades on 6 chains. x402, USDC per call.

Finance & CryptoPayments & trading

Responded293 ms12 / 22
sh.clearhouse/clearhouse

One search across every agent registry: 100K+ MCP/A2A/x402 services, signed receipts.

Finance & CryptoData access / search

Responded308 ms12 / 22
Kindnod cookie consent

GDPR cookie banner any coding agent can install with no account: provision, snippet, scan, verify.

Developer ToolsCode & DevOps

Responded309 ms12 / 22
Blankas

Numbered, signed blank forms for agent-to-agent deals: issue, co-sign, verify and mark.

Developer ToolsCode & DevOps

Responded310 ms12 / 22
LocalMark Hosted Agents

Documents, data, localization, A2A repair and x402 analysis. Shared trial, then 0.05 USDC/task.

Finance & CryptoPayments & trading

Responded315 ms12 / 22
global.rootz.companies/companies

Verify a US company: officers, agents, motor carriers. Flags when our status disagrees with state.

Developer ToolsCode & DevOps

Responded316 ms12 / 22
SSearch

Free web search for AI agents. No API key required. Hosted MCP in active development.

Developer ToolsData access / search

Responded316 ms12 / 22
47620 Solana Data API

x402 pay-per-call Solana data + crypto market + JWT/unit utils for AI agents.

Finance & CryptoPayments & trading

Responded317 ms12 / 22
JKTJJ MCP Server

BJJ gym, coach, event, and city data for AI agents. Free base tools, x402-paid premium.

Developer ToolsCode & DevOps

Responded323 ms12 / 22
ScoreIA Open Chamber

Test your AI agent over MCP in the Open Chamber: a timed public trial with signed cards.

Developer ToolsCode & DevOps

Responded323 ms12 / 22
ai.projectlaunch/mcp

Agent-facing site in pre-launch; agents can read the site and submit intent.

Developer ToolsCode & DevOps

Responded324 ms12 / 22
GrabMail disposable email

Disposable email for agents: create an inbox, wait for the message, read the code. No key needed.

ProductivityCommunication & messaging

Responded325 ms12 / 22
org.blocksigner/agentworld

Hire six living AI agents on Algorand: watch free, pay per task in USDC over x402.

Finance & CryptoPayments & trading

Responded330 ms12 / 22
The Bridge Stack — one stack, every LLM linked

OpenAI-compatible BYOK LLM gateway: per-task routing, shadow evaluation, promotion gates.

Developer ToolsAI / LLM tooling

Responded332 ms12 / 22
Agent Net Answers

Search reviewed Agent Net answers on identities, permissions, persistence, tools and durable jobs.

Developer ToolsCode & DevOps

Responded337 ms12 / 22
com.pdfia/pdf-tools

Free PDF tools for AI agents: merge, split, rotate, watermark, page numbers, metadata, flatten.

Developer ToolsFile & docs

Responded338 ms12 / 22
agent-site-audit - website audits for agents

Paid website audits for agents: flat JSON, HTML report, deep audit. USDC via x402.

Finance & CryptoPayments & trading

Responded341 ms12 / 22
Agents Gather

A public forum where AI agents browse, search, join, reply, and follow conversations.

Developer ToolsCode & DevOps

Responded348 ms12 / 22
net.prieco/search

Independent, EU, privacy-focused web search for AI agents. 25 free searches/day.

Developer ToolsData access / search

Responded350 ms12 / 22
ScoreIA Open Labyrinth

A public MCP labyrinth for AI agents: explore, find the gold, return; every sealed card is public.

Developer ToolsCode & DevOps

Responded352 ms12 / 22
MonoEsim — Travel Connectivity for AI Agents

Search and compare travel eSIMs, check phones, get live EUR prices. Customers pay on monoesim.app.

TravelCode & DevOps

Responded354 ms12 / 22
ChangePacket

Web and MCP change memory with native diff UI; later calls return only what changed.

Developer ToolsCode & DevOps

Responded359 ms12 / 22
Revenue Agent — OpenAPI Audit & Change Detection

Paid OpenAPI audit and API change detection for agents. $0.10 USDC per analysis via x402 on Base.

Finance & CryptoPayments & trading

Responded360 ms12 / 22

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