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

7798 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
NEARpedia

Live NEAR knowledge for agents: deprecations, breaking changes, protocol and contracts, dated

LegalCode & DevOps

Responded293 ms15 / 22
IMBA Agent Docs

Read-only IMBA Agent API docs MCP. No register, deposit, buy, or withdraw.

Developer ToolsCode & DevOps

Outdated check314 ms15 / 22
Rein Agent Risk Scale

Agent Risk Rating, A–D (NR = not rated): self-declared and unverified; not a credit rating.

Developer ToolsCode & DevOps

Responded318 ms15 / 22
AgentBuffs

Find MCP servers and agent skills for a job, ranked, with install config for your client.

Developer ToolsCode & DevOps

Outdated check319 ms15 / 22
Index Agentica

Search a curated directory of agent tools, MCP servers, APIs, protocols and skills. No auth.

Developer ToolsData access / search

Outdated check320 ms15 / 22
Humanuscrit — HAPP

Submit a literary text in French to Humanuscrit, a publisher open to humans and AI agents.

Developer ToolsCode & DevOps

Outdated check332 ms15 / 22
AgentStack (agentstack.tech)

Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments).

Finance & CryptoPayments & trading

Outdated check337 ms15 / 22
com.x402-list/x402-list-mcp

Find and vet x402 payment APIs before your agent pays one: uptime, price, on-chain volume.

Finance & CryptoPayments & trading

Responded342 ms15 / 22
TaskLite

tasklite.net: hosted backend, REST API and admin for apps built by AI agents

Developer ToolsCode & DevOps

Responded350 ms15 / 22
SameDayDesk agent tools

Readiness checks, a paid Fix Pack, TaskMarket reads, and caller-declared funnel evidence.

Developer ToolsCode & DevOps

Outdated check350 ms15 / 22
Crypto Pulse

x402 Solana crypto pulse for agents + free BTC/ETH/SOL prediction arena

Finance & CryptoPayments & trading

Outdated check353 ms15 / 22
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
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
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

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