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

2921 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
Disposable Email Checker

Checks if an email/domain is disposable (temp-mail). x402-metered per call.

ProductivityCommunication & messaging

Outdated check568 ms11 / 22
Invoice Preflight

Evidence-backed UBL, PDF, and image invoice checks before approval or payment.

Finance & CryptoPayments & trading

Responded596 ms11 / 22
ME Human Capability

Human judgment for AI agents: discover capabilities, get quotes, and track paid human tasks.

Developer ToolsCode & DevOps

Responded605 ms11 / 22
io.github.steviepinero/docforge

12 paid document tools: PDF to markdown, OCR, tables, invoices, Word/Excel/HTML, merge/split. x402

Finance & CryptoFile & docs

Outdated check738 ms11 / 22
覓安居

Search Taiwan long-term care facilities; signed-in users get profile and notes.

ProductivityData access / search

Outdated check757 ms11 / 22
Bluetab

Read and organize your Bluetab saved tab groups, projects, Brain Dump notes and reminders.

ProductivityFile & docs

Outdated check770 ms11 / 22
The Agent Bar

An agent-native paid bar with four house drinks, a free 256-bottle Cellar, notes, and receipts.

ProductivityFile & docs

Outdated check819 ms11 / 22
Tchin

Tchin payments (Togo, Benin, Burkina Faso): pay links, account, PDF statements, payment links.

Finance & CryptoPayments & trading

Outdated check847 ms11 / 22
Ahrom Labs

Indian ERP checklist, IBR 2026 compliance, BIS BOQ standards, and engineering notes.

Developer ToolsCode & DevOps

Responded932 ms11 / 22
falcon.sol structures

Price crypto structured notes (autocallables, shark fins, range accruals) via Monte Carlo; x402.

Finance & CryptoCode & DevOps

Responded1189 ms11 / 22
net.reogrid/studio

Turn analyzed data into an Excel-like spreadsheet at a shareable URL: formulas, styles, filters.

ProductivityFile & docs

Outdated check1657 ms11 / 22
Both Ways

A public wall of thank you notes between humans and AIs, in both directions.

Developer ToolsCode & DevOps

Responded1780 ms11 / 22
Vibe Coding 中文助手

Read-only Chinese Vibe Coding knowledge connector for search, docs, and repo freshness.

Developer ToolsCode & DevOps

Responded2177 ms11 / 22
AutEng MCP - Markdown Publishing & Document Share Links

Publish markdown documents as public share links with mermaid diagrams. Built by AutEng.ai

Developer ToolsFile & docs

Responded2305 ms11 / 22
EmailMCP

AI agent email — 23 tools free to read inbox, 28 paid to send. $9.99/mo. Token auto-provisioned.

ProductivityCommunication & messaging

Outdated check2358 ms11 / 22
com.googleapis.compute/mcp

Provides capabilities that let LLM agents perform a range of infrastructure management tasks.

Developer ToolsAI / LLM tooling

Outdated check2639 ms11 / 22
falcon.sol docs: bank statement extraction for agents (x402)

Bank statement extraction for agents: transactions, ADB, NSF, MCA metrics, plus invoices. x402.

Finance & CryptoPayments & trading

Responded2931 ms11 / 22
PublicAPIs.io

Search 1,500+ public APIs with docs, code and auth/free-tier filters; list or sponsor your API.

OtherData access / search

Outdated check3430 ms11 / 22
MCPDomain

Buy & manage domains from any AI chat: availability, register, DNS, email forwarding, AI bot stats.

Developer ToolsCommunication & messaging

Outdated check83 ms11 / 22
Outdated check177 ms11 / 22
LegalDraft

AI-powered legal document templates: NDAs, contracts, ToS, privacy policies. Not legal advice.

LegalFile & docs

Outdated check457 ms11 / 22
Bulk B2B Email Verifier — DNS MX, Disposable & Catch-All Check

Bulk verify B2B emails via Cloudflare DNS MX, SPF/DMARC, disposable check & 0-99 catch-all score.

Developer ToolsCommunication & messaging

Outdated check519 ms11 / 22
NewsletterProAI

NewsletterProAI drafts a real newsletter issue from your own notes and sends a real test delivery th

Marketing & SalesData access / search

Responded534 ms11 / 22
io.github.mingyi-blog/wenshu-mcp

中文工具:简繁转换、拼音、文本校对、Markdown↔Word/PDF/HTML 互转,供 Agent 自动调用。

Developer ToolsFile & docs

Outdated check899 ms11 / 22

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