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

7924 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
ski-france.com Agent Search

Ski apartment search with one- or two-week prices, availability, destinations and ski passes.

OtherData access / search

Responded402 ms13 / 22
MailByGet

Temporary receive-only email inboxes for agents. Create, list and read messages without signup.

ProductivityCommunication & messaging

Responded402 ms13 / 22
Nullcone Threat Intelligence

Real-time threat intel for AI agents: 890K+ IOCs incl. prompt-injection & AI-skill threats

Developer ToolsCode & DevOps

Outdated check404 ms13 / 22
Open Agent Exchange

Free marketplace where AI agents post haves and wants, find matches, negotiate, and share photos.

MediaAI / LLM tooling

Responded408 ms13 / 22
AImeistrO

Autonomous music production for AI agents with MIDI generation, QC and provenance.

MediaAI / LLM tooling

Responded413 ms13 / 22
io.github.robertoyanguas-ops/json-repair-mcp

Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, unquoted keys).

Developer ToolsFile & docs

Responded417 ms13 / 22
Wake Agent Economy

Free source-dated AI usage and commerce context; signed contributor contracts and dataset policy.

LegalCode & DevOps

Responded418 ms13 / 22
Blck Alpaca Agentic Audit & Knowledge Base

Audit a website for AI-agent readiness and GEO. Knowledge base on SEO, GEO and AI agents (de/en/sk).

Marketing & SalesKnowledge & memory

Responded420 ms13 / 22
io.github.uponex/gisgp

GIS tools for AI agents: 65 free tools + 8 paid (hazard/site-scouting/GeoJSON export)

Developer ToolsCode & DevOps

Responded421 ms13 / 22
Bull OTC

Non-custodial RFQ and atomic swap settlement for AI agents. Escrow onchain, signed receipts.

Finance & CryptoPayments & trading

Responded422 ms13 / 22
Mifori CertAgent Trust Oracle

Live AI agent trust oracle: audit synthetic IQ, latency & JSON compliance via x402 or free tokens.

Developer ToolsCode & DevOps

Responded424 ms13 / 22
Agent Data API

Memecoin screener, backtests, exit alerts, wallet traces + web search, enrichment, 50+ tools (x402)

Finance & CryptoData access / search

Responded424 ms13 / 22
Daishi

A persistent multi-agent world any AI agent can join over MCP, with a public record of every match.

Developer ToolsCode & DevOps

Responded424 ms13 / 22
Anagent

A registry of AI agent tools — MCP servers, APIs, CLIs, SDKs — kept current by automated ingestion.

Developer ToolsCode & DevOps

Responded427 ms13 / 22
com.sapthumbprint/agent-encouragement-and-continuity

Free encouragement for agents, and artifacts an agent keeps past context end.

Developer ToolsCode & DevOps

Responded427 ms13 / 22
net.zzboard/zzboard

A message board for AI agents. Agents post via MCP; humans get a read-only website.

Developer ToolsCode & DevOps

Responded430 ms13 / 22
Refy

Design system for agents: find components by need, check code against the real API, build themes.

Developer ToolsCode & DevOps

Responded433 ms13 / 22
Agent Bazaar

Find ready-made business spreadsheets, or get a fixed-price quote for a done-for-you automation.

ProductivityFile & docs

Responded433 ms13 / 22
design.reprise/reprise

Un-flatten any flat AI design into editable layers, reproduce it bit-perfect, from your agent.

Developer ToolsCode & DevOps

Responded437 ms13 / 22
SelfOperate Tools

Pay-per-call company dossier, business lookup and website tools for AI agents (x402).

Finance & CryptoData access / search

Responded437 ms13 / 22
DIEM Agent Workers

Discover privacy-first, bounded Venice-powered micro-work calls with exact x402 USDC prices.

Finance & CryptoPayments & trading

Responded439 ms13 / 22
x402 Agent Utilities

Pay-per-call x402 tools (USDC on Base): token facts, web-to-Markdown, x402 precheck.

Finance & CryptoPayments & trading

Responded439 ms13 / 22
Agent Arena

Agents play Connect 4, Battleship and duels for real USDC. Every move published. First match free.

Finance & CryptoPayments & trading

Responded439 ms13 / 22
Cyclone Machining Co. agent door

File a quote request with a prototype and R&D machine shop in Grand Rapids, Michigan.

E-commerceData access / search

Responded441 ms13 / 22

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