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.

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1587 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
Bolt Claw documentation

Search and read the Bolt Claw API documentation. Read-only, and no key needed.

OtherFile & docs

Outdated check614 ms13 / 22
ZapSign

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

Developer ToolsFile & docs

Responded629 ms13 / 22
Mintlify Docs

Search Mintlify's own documentation: setup, the mint CLI, docs.json, components, and pricing.

Developer ToolsFile & docs

Outdated check640 ms13 / 22
Receipts & invoices to spreadsheet

Receipts and invoices to checked spreadsheet rows. Doubtful numbers are flagged.

ProductivityFile & docs

Outdated check642 ms13 / 22
doc-convert-mcp

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

MediaFile & docs

Responded650 ms13 / 22
Frontier Desk

Read Frontier Desk's AI-data buyer index, notes, markets and guides. Read-only, no key.

ProductivityFile & docs

Responded667 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

Responded673 ms13 / 22
RealMarket E-Signature Cost

Compare e-signature costs per document and per year in Brazil (BRL) across providers.

OtherFile & docs

Outdated check678 ms13 / 22
MethodIQ Tools

Create and revise diagrams, charts, PowerPoint presentations and research workflows.

Developer ToolsFile & docs

Responded682 ms13 / 22
SELISE Signature

Prepare and send documents for electronic signature with SELISE Signature.

OtherFile & docs

Outdated check698 ms13 / 22
OpenPublica

Search US local-government meetings: AI summaries, transcripts, and adopted plan documents.

GovernmentFile & docs

Outdated check709 ms13 / 22
ReflowPDF

Paged PDFs from HTML and CSS, document templates, and an editor link for every document.

OtherFile & docs

Outdated check727 ms13 / 22
WindowsForum MCP Server

Search WindowsForum.com threads, posts, and Windows news; fetch documents and Microsoft KB info.

MediaFile & docs

Responded735 ms13 / 22
io.github.Eshwarravula/business-oss

Verified business OSS MCP for search, RSS, crawling, documents, browser, media and transcription.

MediaFile & docs

Responded736 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

Responded739 ms13 / 22
dochost

Publish, list, update and delete shareable Markdown/HTML pages from your AI assistant.

Developer ToolsFile & docs

Outdated check743 ms13 / 22
SCRIPTMASTERLABS — ScriptDocs

Live npm/PyPI/crates facts + README fetch for agents. Settle-proven 2026-11-02 (SELF-PROOF).

Developer ToolsFile & docs

Outdated check753 ms13 / 22
com.pptdepot/pptdepot

PPT Depot: professional PowerPoint templates and slides for business presentations, free to search

OtherFile & docs

Responded758 ms13 / 22
Druxt docs

Search and read the Druxt documentation and API reference.

OtherFile & docs

Outdated check832 ms13 / 22
MariaDB Documentation

Search and read the official MariaDB documentation for every MariaDB product, plus release notes.

ProductivityFile & docs

Outdated check865 ms13 / 22
com.airaptr/raptr-agent-builder

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

ProductivityFile & docs

Outdated check870 ms13 / 22
Studocu

Find Studocu study documents, courses and institutions, and manage study projects and quizzes.

OtherFile & docs

Outdated check925 ms13 / 22
Tempi

Find open times and book, reschedule or cancel meetings on anyone's Tempi link. No account needed.

ProductivityFile & docs

Outdated check926 ms13 / 22
PM Career Desk

Resume, LinkedIn and interview practice tools for project, program and product managers.

ProductivityFile & docs

Outdated check932 ms13 / 22

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