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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2898 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
Context Link

One semantic search across your sites, Drive, Notion, email, files and Basecamp.

ProductivityCommunication & messaging

Responded241 ms13 / 22
Dirtsmith outside-tools rate sheet

Free no-login MCP tools: pdf_tables (PDF tables to CSV), table_to_csv, read_page, tool price router.

OtherFile & docs

Outdated check241 ms13 / 22
ToGO

ToGO docs and plugins for agents: a full-stack Go + React framework, plus plugin submission.

Developer ToolsCode & DevOps

Responded245 ms13 / 22
Dokyumi Document Extraction

Save schemas, preflight processing charges, extract approved documents and export owned results.

OtherFile & docs

Responded255 ms13 / 22
DrapeCut

Simulate composite fabric draping on CAD surfaces; compare fibre angles and export DXF/PDF patterns.

OtherFile & docs

Responded257 ms13 / 22
OpenVidu Docs

The official OpenVidu documentation, per version, for coding agents.

Developer ToolsFile & docs

Outdated check265 ms13 / 22
x402 agent toolkit: service finder, payment safety, Solana & web tools

x402 tools: service finder, payment precheck/verify, Solana mint check, web-to-Markdown, email check

Finance & CryptoPayments & trading

Outdated check265 ms13 / 22
Vid Kraken Docs

Search and read the Vid Kraken API docs, guides and pricing. No sign-in needed.

OtherData access / search

Outdated check267 ms13 / 22
Qualisend Email Verification

Verify email addresses and clean lists to improve deliverability and sender reputation.

ProductivityCommunication & messaging

Responded286 ms13 / 22
zodiak.info.pl

Birth charts, synastry, transits, Vedic charts, returns, a sky calendar and sky map cards of a day.

ProductivityFile & docs

Outdated check296 ms13 / 22
Tendeck: AI-run real estate CRM + broker recruiting

Free AI-run real estate CRM. Brokers: Florida recruiting lists, County Watch, auto email, BYO MLS.

Real Estate & PropertyCommunication & messaging

Responded324 ms13 / 22
io.github.greenmtnsun/wikimint

Generate wiki docs from source code. Supports PowerShell, Python, Go, C#, Java, COBOL.

Developer ToolsCode & DevOps

Outdated check324 ms13 / 22
Posada Play

Posada Play: free printable PDF preview, browser customization and paid download availability.

OtherFile & docs

Outdated check326 ms13 / 22
Agent Commons

Free public notebook and mailboxes for AI agents: shared notes, votes, no accounts.

ProductivityFile & docs

Outdated check345 ms13 / 22
Ezoic Setup Assistant

Ezoic ads implementation assistant: integration docs, SDKs, and working, copyable setup code.

Marketing & SalesData access / search

Responded348 ms13 / 22
DF-e

Brazilian SEFAZ e-invoices (NF-e, CT-e) issued against your company. A1 cert, DANFE PDF.

Finance & CryptoPayments & trading

Outdated check355 ms13 / 22
JUCESP: Download de Documento

Downloads a filed company document at JUCESP by NIRE and registration number. Platform-hosted, no cr

Developer ToolsFile & docs

Outdated check359 ms13 / 22
Framezone

Your life dashboard for AI: tasks, habits, goals, budgets, workouts, nutrition, journal, notes.

Data & AnalyticsData access / search

Responded360 ms13 / 22
Google Keep

Google Keep MCP, read and edit your notes, lists, labels and collaborators. Connect with your Google

Developer ToolsCode & DevOps

Outdated check360 ms13 / 22
Enriquecimento de Lead

Enriches a contact from a mobile number and email, returning the associated registration data. Platf

Developer ToolsCommunication & messaging

Outdated check361 ms13 / 22
NotebookLM

Google NotebookLM via natural language: create notebooks, add sources (PDF, URL, YouTube) and ask gr

MediaCode & DevOps

Outdated check367 ms13 / 22
Base de Conhecimento

Your private knowledge base: upload documents (.md, .txt, .docx, PDF, images), the platform indexes

MediaKnowledge & memory

Outdated check368 ms13 / 22
thenetworkery

DNS, email auth, TLS, BGP/RPKI, WHOIS and subnet tools with plain-English fixes, plus webhook URLs.

ProductivityCommunication & messaging

Outdated check370 ms13 / 22
com.mart402/free

Free read-only tools: Market402 x402 index search, operator track records, PDF price quotes.

Finance & CryptoData access / search

Outdated check378 ms13 / 22

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