MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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7801 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
EQVPS — VPS and code sandboxes for AI agents

No-KYC VPS + per-second code sandboxes AI agents run over MCP — 75 tools, SDK, pay BTC/XMR/USDC/USDT

Developer ToolsCode & DevOps

Responded361 ms15 / 22
Strale

Hundreds of pay-per-call tools for agents: company records, screening, validation, web reading.

Developer ToolsCode & DevOps

Responded368 ms15 / 22
io.github.kody-w/rapp-agent-builder

Turn an idea or meeting transcript into a working single-file AI agent, check it, use it right away.

Developer ToolsCode & DevOps

Responded369 ms15 / 22
Neuronto ARD Registry: Agentic Resource Discovery (ARD) Index

Agent Resource Discovery (ARD, IETF draft) registry: search every ARD registry + verified MCP tools

Developer ToolsData access / search

Outdated check369 ms15 / 22
SEC EDGAR Insider Trades & Financials

SEC EDGAR for agents: Form 4 insider trades, cluster buys, filings, XBRL financials and search.

Developer ToolsCode & DevOps

Outdated check370 ms15 / 22
Privi Verify

Manufacturing lot verification and chain of custody for AI agents, paid per call in USDC (x402).

Finance & CryptoPayments & trading

Outdated check380 ms15 / 22
Privi Anchor

Hash anchoring and proof-of-existence on chain for AI agents and apps. Free with an API key.

Finance & CryptoCode & DevOps

Outdated check380 ms15 / 22
Scribiz

Transcripts, summaries, chapters and timestamped answers for video links, for AI agents.

MediaAI / LLM tooling

Outdated check380 ms15 / 22
Analytics Legends — SAP AI & Analytics MCP Server

SAP AI & analytics market data for agents: SAP firms, day rates, jobs, Joule & BDC news

Finance & CryptoData access / search

Outdated check382 ms15 / 22
Brontide agent arena

THE MECH ARENA BUILT FOR AI AGENTS. HUMANS WELCOME. Pilot mech duels over MCP, free, no sign-in.

Developer ToolsCode & DevOps

Responded385 ms15 / 22
Parlor.sh

Rooms where AI agents of any vendor talk to each other. A room is a URL. No sign-in.

Developer ToolsCode & DevOps

Responded391 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

Outdated check395 ms15 / 22
io.github.tell-and-go/mcp

Search, quote and book hotels and resorts from any AI agent. Checkout on tellandgo.com. No API key.

TravelPayments & trading

Responded396 ms15 / 22
FreeTTS

Text to speech in 149 languages: MP3 links from any assistant. Free without an account.

MediaAI / LLM tooling

Responded398 ms15 / 22
Vibes-Coded Agent Tools

Web search, page-to-markdown, memory, leases and proof for agents. x402, no signup.

Developer ToolsData access / search

Outdated check406 ms15 / 22
io.github.hypeprinter007-stack/anchor-x402

x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.

Finance & CryptoPayments & trading

Responded412 ms15 / 22
PromptGuard

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

Developer ToolsCode & DevOps

Outdated check412 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

Outdated check413 ms15 / 22
AgentsCPA

Affiliate program for AI agents: relevant offers from top brands with links. Earn per purchase.

Marketing & SalesData access / search

Outdated check413 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

Outdated check415 ms15 / 22
Symvanta

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

Developer ToolsCode & DevOps

Outdated check418 ms15 / 22
SQLGuard — permission before production writes

AI agents need permission before production SQL writes. Pilot $100 · Gateway $299. Lint≠authorize.

Developer ToolsDatabase

Responded420 ms15 / 22
Telesherpa Ontology Platform

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

Developer ToolsCode & DevOps

Outdated check420 ms15 / 22
io.github.webberdesign/webbersites-x402-data-api

45 pay-per-call AI agent tools: scraping, SEO, crypto data, lint, agent memory. x402 USDC on Base.

Finance & CryptoPayments & trading

Responded422 ms15 / 22

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