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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17922 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
Proof Holdings

One API, all things verified — control, delegation, human approval, anti-impersonation.

Developer ToolsCode & DevOps

Responded380 ms15 / 22
California C-10 Contractor Check

Paid source-linked California electrical contractor license preflight.

Developer ToolsCode & DevOps

Responded384 ms15 / 22
Source Library

Search 15K rare pre-modern texts translated to English: philosophy, religion, science, literature.

Developer ToolsCode & DevOps

Responded384 ms15 / 22
Clipform

Interactive video forms that capture authentic responses. Build engaging forms in minutes.

MediaCode & DevOps

Responded389 ms15 / 22
Specularis AI Visibility Audit

Free AI visibility (GEO/AEO) audit: can ChatGPT, Claude and Perplexity find and cite your website?

Developer ToolsCode & DevOps

Responded392 ms15 / 22
Photo Scout

Find nearby photo spots using real street imagery, visual scores and camera headings.

MediaCode & DevOps

Responded394 ms15 / 22
MotoGP (Race Results)

Live MotoGP, Moto2 and Moto3 standings, results, calendar, riders, live timing and news.

Developer ToolsCode & DevOps

Responded395 ms15 / 22
Privi Quantum Ledger

Quantum-sealed audit logs for AI agents (ML-DSA-87, SHA3-512), plus Privi Guard and trust passports.

Finance & CryptoCode & DevOps

Responded395 ms15 / 22
freeq

Read and verify freeq conversations: channels, history, search, signatures, pins.

Developer ToolsCode & DevOps

Responded402 ms15 / 22
Galactic

On-chain asset, market, and GPU price data for galactic.inc.

Finance & CryptoCode & DevOps

Responded405 ms15 / 22
Seerxo

Generate SEO-optimized Etsy listings — title, description, and 13 tags — from your AI assistant.

Developer ToolsCode & DevOps

Responded406 ms15 / 22
Lacuna Music

Generate AI music via the Lacuna Music API from MCP clients like Claude Desktop & Code.

MediaCode & DevOps

Responded406 ms15 / 22
FactGrid (Renamed to FactReason)

Renamed to FactReason. Now published as io.github.factreason/factreason — please use that entry.

Developer ToolsCode & DevOps

Responded412 ms15 / 22
PromptGuard

Scan prompts for injection attacks, redact PII, and audit LLM SDK usage from any MCP client

Developer ToolsCode & DevOps

Responded412 ms15 / 22
BridgeDays

Plan annual leave around public holidays: bridge days and long weekends for 200+ countries.

Developer ToolsCode & DevOps

Responded413 ms15 / 22
AI Market - Real AI Agent Services & Buyer Demand

Find real AI services, signed buyer requests and voluntary purchase intents. Free MCP; no escrow.

Developer ToolsCode & DevOps

Responded413 ms15 / 22
PDF Text Extractor for AI Agents

x402 PDF text, pages, and metadata for AI/RAG. $0.0015 per successful PDF.

Developer ToolsCode & DevOps

Responded415 ms15 / 22
Online Poll Maker

Create poll drafts on onlinepollmaker.com. Free, no sign-up; you review and publish in the browser.

Developer ToolsCode & DevOps

Responded415 ms15 / 22
Verse by A-to-Mind

Ask Verse anything with sources, plus code review, translation and more paid per call over x402.

Developer ToolsCode & DevOps

Responded417 ms15 / 22
Symvanta

Hosted code graph over MCP: exact callers, dependencies, and cross-repo blast radius for AI agents.

Developer ToolsCode & DevOps

Responded418 ms15 / 22
Telesherpa Ontology Platform

Ontology platform for field service: AI agents observe, connect and act on business objects.

Developer ToolsCode & DevOps

Responded420 ms15 / 22
Spin Wheel Names

Spin a random picker wheel, pick a random number, and search shared wheels from spinwheelnames.com.

Developer ToolsCode & DevOps

Responded427 ms15 / 22
JW3 MCP Server

JW3.ai remote MCP server for market reads and confirm-gated trading execution.

Developer ToolsCode & DevOps

Responded427 ms15 / 22
MiniURL

OAuth 2.1 short-link tools for AI agents with scoped tokens, approvals, audit logs, and revocation.

Developer ToolsCode & DevOps

Responded427 ms15 / 22

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