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
classifier.dev docs

classifier.dev documentation as tools: list, read and search the reference, benchmark and guides.

OtherFile & docs

Responded580 ms15 / 22
Pressmark

Create PDF invoices, estimates, contracts, and real estate documents. (mooshworks.com)

Real Estate & PropertyFile & docs

Responded581 ms15 / 22
Document Integrity Validator

AI reasoning checks any document against known international standards before your agent acts on it.

Developer ToolsFile & docs

Responded585 ms15 / 22
Pressmark

Create PDF invoices, estimates, contracts, and real estate documents. (mooshworks.com)

Real Estate & PropertyFile & docs

Responded590 ms15 / 22
Shipshape Data docs

Docs Q&A: search 169 data and AI guides, fetch any page as markdown. Read-only, keyless.

OtherFile & docs

Responded617 ms15 / 22
PlugRail Japanese Calendar

Japanese holiday and business-day calculations using official Japan Cabinet Office data.

ProductivityFile & docs

Responded659 ms15 / 22
Moltline Data Desk

Paste-your-data analytics: CSV profiling, A/B tests, correlation, growth. 4 of 7 free.

Data & AnalyticsFile & docs

Responded690 ms15 / 22
lovefengis docs

Developer documentation of lovefengis (REST API, MCP, CLI, auth) over MCP. Read-only, no auth.

Developer ToolsFile & docs

Responded703 ms15 / 22
MainBook Bank Statement Converter

Convert PDF bank statements to checked Excel, CSV or JSON with balance validation.

Finance & CryptoFile & docs

Responded705 ms15 / 22
ViewportWitness by Apex Labs

Agent website testing: browser QA, visual regression, Markdown extraction, and security checks.

Developer ToolsFile & docs

Responded734 ms15 / 22
Flowershow

Publish Markdown and HTML from your AI session as a live website. No account needed.

OtherFile & docs

Responded748 ms15 / 22
Clino: Swiss household employment

Hiring plan with dates, cost, net wage, minimum wage and rules for Swiss household employment.

ProductivityFile & docs

Responded782 ms15 / 22
Assinafy

Send documents for legally valid e-signature in Brazil, track signers and download signed files.

Developer ToolsFile & docs

Responded908 ms15 / 22
YouSpot

Query one person's second brain: contacts, companies, notes, files and connected accounts.

ProductivityFile & docs

Responded1023 ms15 / 22
Web Page to Markdown (Tanod)

Turn any web page URL or HTML into clean Markdown or plain text for an LLM to read.

Developer ToolsFile & docs

Responded1043 ms15 / 22
GetMattered

Auto-Apply That Ends on an Interview. Job matches, per-role resumes, apply, approve, track receipts.

ProductivityFile & docs

Responded1081 ms15 / 22
tsquare wireframes

Draws UI wireframes from a small text language: multi-screen boards with notes and flow arrows.

ProductivityFile & docs

Responded1096 ms15 / 22
SiteGPT Docs

Search the SiteGPT documentation: setup, features, API reference, troubleshooting.

Developer ToolsFile & docs

Responded1113 ms15 / 22
Document to Markdown (Tanod)

Document to Markdown: convert Word, Excel, PowerPoint and PDF files to Markdown for an LLM.

Developer ToolsFile & docs

Responded1214 ms15 / 22
Hire Filipino Virtual Assistants (Armasourcing)

Hire vetted Filipino virtual assistants: check pool depth, hiring process, terms, book a call.

ProductivityFile & docs

Responded1216 ms15 / 22
Bank Statement to CSV (Tanod)

Bank statement PDFs become CSV, JSON or QBO transactions with dates, amounts and balances.

Finance & CryptoFile & docs

Responded1220 ms15 / 22
DataToRAG

Hosted MCP for Google Workspace, Atlassian and Notion: one OAuth, per-user accounts, write access.

ProductivityFile & docs

Responded1258 ms15 / 22
Branch Docs

Access and search Branch's official API documentation directly within any AI agent or client.

Developer ToolsFile & docs

Responded1331 ms15 / 22
PDF Table Extractor (Tanod)

Pull tables out of a PDF as rows and cells, ready for a spreadsheet or a data pipeline.

ProductivityFile & docs

Responded1415 ms15 / 22

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