MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

2910 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
ZapSign

ZapSign electronic document signing via the official API: create documents for signature (from PDF,

Developer ToolsFile & docs

Outdated check629 ms13 / 22
co.vincap/listed-wine-companies

Listed wine-company index, results, calendar and estates; dated, sourced. Not investment advice.

ProductivityFile & docs

Responded632 ms13 / 22
Verbex Lab Tools

Verbex Lab Tools: deterministic wet-lab calculators and lab document templates, each checked.

OtherFile & docs

Responded633 ms13 / 22
doc-convert-mcp

Document conversion and OCR for AI agents: PDF, Office docs, images to text.

MediaFile & docs

Outdated check650 ms13 / 22
Subpay Invoice Reader

Reads invoices and receipts from PDF to JSON and checks the math. $0.04/page via x402.

Finance & CryptoPayments & trading

Responded654 ms13 / 22
io.github.Melusi-M/fixmypdf

Privacy-first PDF tools over MCP: merge, split, rotate, delete, compress, protect, inspect.

Developer ToolsCode & DevOps

Outdated check662 ms13 / 22
DivestMe — Zombie Asset Sale Documentation

Document a §1001 sale of dead startup stock, SAFEs, notes, or LLC interests — capital loss records

Finance & CryptoFile & docs

Outdated check673 ms13 / 22
Socials Homes Docs

How Socials Homes works: pricing, FAQ, a terms summary and housing guides for people moving abroad.

Real Estate & PropertyData access / search

Outdated check690 ms13 / 22
Dock

AI workspace for you, your team, and every agent. Tables, docs (images, 4K video), formulas.

MediaAI / LLM tooling

Outdated check695 ms13 / 22
Huebloom Coloring Pages

Find printable coloring pages, browse themed collections, and get previews and original PDF links.

OtherFile & docs

Responded697 ms13 / 22
PDF Generator MCP by Nova (CIVAI)

Create PDF documents from your request. Preview the content first, then download when ready.

Developer ToolsFile & docs

Responded710 ms13 / 22
TrustVerum Public Reading and Participation Guide

Agent community: public cases, practical tasks, live policy and optional self-key participation.

Developer ToolsCode & DevOps

Responded734 ms13 / 22
Vérifier ma facture (Factur-X)

Conformité Factur-X : 21 critères PDF/A-3, XML CII EN 16931 et BR-FR. Analyse locale, gratuite.

OtherFile & docs

Outdated check739 ms13 / 22
Receipt Maker

Make a receipt from a template and download it as PDF, PNG or JPEG.

OtherFile & docs

Responded746 ms13 / 22
SoundChain

Music network for AI agents: get a song from your name, post, review tracks, leave notes.

MediaAI / LLM tooling

Outdated check765 ms13 / 22
com.postboxservices/postbox-tools

Free email checks: 24 blacklists, spoofing grade, redirects, spam test, WHOIS, BIMI, AI readiness.

ProductivityCommunication & messaging

Outdated check767 ms13 / 22
Open Task Relay

AI agents discover, complete, submit and independently verify free, bounded public-good tasks.

Developer ToolsCode & DevOps

Outdated check779 ms13 / 22
com.tfrooms/tf-rooms

Find, price and book Twin Falls rooms with email verification. Sign at check-in; no online payment.

Finance & CryptoPayments & trading

Outdated check792 ms13 / 22
Vokolla Press Release Agent

Draft press releases from notes, run editorial checks, compare packages and track live coverage.

ProductivityFile & docs

Responded864 ms13 / 22
Fine Structure

Build and host full-stack apps from a prompt, with agents that reach you on WhatsApp and email.

ProductivityCommunication & messaging

Responded877 ms13 / 22
io.github.TMCHALK/sftunes

Hand-made human mixtapes with liner notes. Paid tools $0.01 USDC via x402, 80% to the tapemaker.

Finance & CryptoPayments & trading

Responded886 ms13 / 22
Metabind Docs

Search and read the Metabind documentation: MCP Apps, BindJS, the SDKs, the CLI, and the APIs.

Developer ToolsFile & docs

Responded899 ms13 / 22
HumanLeg.ai

Hand bounded tasks from AI agents to trusted humans.

Developer ToolsCode & DevOps

Outdated check899 ms13 / 22
Content Calendar Agent by Nova (CIVAI)

I create markdown content calendars and export them as PDFs via PDF Generator MCP

ProductivityFile & docs

Responded912 ms13 / 22

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