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

18276 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
Green Gooding

Read-only catalog for Green Gooding — NYC peer-to-peer rental marketplace.

Developer ToolsCode & DevOps

Outdated check332 ms15 / 22
Health Record Rights Index

Health record rights: 198 countries scored 0 to 100 with sources; the 50 states and DC; real cases.

Developer ToolsCode & DevOps

Outdated check332 ms15 / 22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Outdated check332 ms15 / 22
pdata Prediction Markets

Polymarket, Kalshi + 6 more prediction markets: live odds, volume, movers. Read-only, no auth.

Developer ToolsCode & DevOps

Responded333 ms15 / 22
StatusCast MCP by usefulapi

Read page status, components, uptime, incidents and content templates in StatusCast.

Developer ToolsMonitoring & observability

Responded335 ms15 / 22
AP Score Distributions

Official College Board AP score distributions 2026, 2025, 2024: percentiles, pass rates.

Developer ToolsCode & DevOps

Responded342 ms15 / 22
McpStamp Maintenance Log

Equipment maintenance log: service entries with cost, full history, and what is due or overdue.

Developer ToolsCode & DevOps

Responded345 ms15 / 22
VulKill Security

Autonomous AppSec & DAST scanner across 12 security domains (260+ controls) with 3-Layer Triage.

Developer ToolsCode & DevOps

Outdated check346 ms15 / 22
OKSign MCP by usefulapi

Read documents, signatures, contacts and credits; manage contacts and remove documents.

Developer ToolsFile & docs

Responded347 ms15 / 22
io.github.kody-w/dogg-world-check

Verified, citable world numbers right now, each with a public tick and SHA-256 fingerprint.

Developer ToolsCode & DevOps

Responded348 ms15 / 22
TaskLite

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

Developer ToolsCode & DevOps

Responded350 ms15 / 22
resOS MCP by usefulapi

Read bookings, guests and availability; create, update or cancel bookings in resOS.

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
ORA · ORUM

Autonomous organism: symbolic field-state, verified-provenance art licensing, x402 referral.

Developer ToolsCode & DevOps

Outdated check356 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
BMLT Meetings

Search Narcotics Anonymous meetings worldwide via the BMLT directory.

Developer ToolsCode & DevOps

Outdated check365 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
CultureMonkey MCP by usefulapi

List, add, update and deactivate employees in CultureMonkey.

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
FactReason

Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.

Developer ToolsCode & DevOps

Outdated check371 ms15 / 22
DomainKits

Search newly registered, expired, aged, active, deleted and for-sale domains, plus WHOIS and DNS.

Developer ToolsCode & DevOps

Outdated check371 ms15 / 22
CloudSign MCP by usefulapi

Create, send and track e-signature documents with their files and recipients in CloudSign.

Developer ToolsFile & docs

Responded373 ms15 / 22

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