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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4901 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
workspaceAlberta

Search every CanadaBuys and Alberta Purchasing Connection tender. Free briefs; Pro bid-room tools.

OtherData access / search

Outdated check736 ms15 / 22
Mode VC AI Chart Lab: 38 Empirical AI & Venture Charts

Search and retrieve time-series data across 38 empirical AI adoption and venture research charts.

OtherData access / search

Outdated check750 ms15 / 22
Web Search (Tanod)

Search the web and the news from an agent, with page text in the results when you ask for it.

MediaData access / search

Outdated check760 ms15 / 22
TATUAT.RO — Tattoo & Piercing Supplies

Tattoo and piercing supply catalog (Romania): search, live stock, shipping cost, checkout link.

Finance & CryptoPayments & trading

Outdated check763 ms15 / 22
mcp-my-site

Search and fetch tools for one website, served from an index you build with the mcpmysite crawler.

Developer ToolsBrowser & web scraping

Responded771 ms15 / 22
Sparkflights

Search flight fares by city, month, cabin and price, and watch a route for new deals.

TravelCode & DevOps

Responded788 ms15 / 22
Buy My Agent

Search a curated, human-reviewed AI agent marketplace, and post what you could not find.

Developer ToolsCode & DevOps

Outdated check789 ms15 / 22
Organiq GEO

Search Console and GA4 analysis (read-only Google): queries, decay, cannibalization, AI traffic.

OtherData access / search

Outdated check789 ms15 / 22
Mode VC: AI Venture Research Charts & Investor Atlas

Query 38 empirical AI market charts, evaluate distribution defensibility, and search 3,650+ VCs.

OtherData access / search

Outdated check797 ms15 / 22
Rokha

Search a registry of agent skills and MCP servers, then run them for real. No install, traced.

Developer ToolsData access / search

Outdated check802 ms15 / 22
runx

The governed runtime for agent skills. Search the catalog and inspect a skill before running it.

Developer ToolsData access / search

Outdated check803 ms15 / 22
The Daily Workflow — AI Tools & Free Alternatives

Find free open-source replacements for paid software; search 15,000+ AI tools and MCP servers.

Developer ToolsAutomation & workflows

Outdated check806 ms15 / 22
LayUp Sports Booking

Search bookable London courts, pitches, lanes and pickup games across every major UK provider.

LegalCode & DevOps

Outdated check810 ms15 / 22
Loa Healthcare Pricing

Search source-labeled hospital prices, CPT codes, providers, and healthcare cost estimates.

HealthcareCode & DevOps

Outdated check820 ms15 / 22
TheRundown Documentation MCP

Official TheRundown API documentation search. No live data or authenticated Product API calls.

Developer ToolsFile & docs

Responded830 ms15 / 22
Evercraft Web

Read public web content with Evercraft; search and browser automation stay behind safety gates.

Developer ToolsAutomation & workflows

Outdated check845 ms15 / 22
KnownFix

Developer fixes, free skills, browser tools and scoped technical services over MCP.

Developer ToolsCode & DevOps

Outdated check849 ms15 / 22
LeadMarina

Verified local-business leads: search by niche and US city, export to Close, GoHighLevel or Sheets.

Marketing & SalesData access / search

Outdated check849 ms15 / 22
My Painting Club — Painting Lessons

Search transcribed painting lessons. Results cite the exact lesson and Vimeo timestamp.

EducationCode & DevOps

Outdated check866 ms15 / 22
Lebanese Legislation

Search and read Lebanese laws, articles, court rulings and Gazette issues. Verbatim texts only.

LegalData access / search

Outdated check870 ms15 / 22
StringSpec

Lab measurements of nearly 800 tennis strings: search, compare and get recommendations.

Developer ToolsData access / search

Outdated check873 ms15 / 22
Plugin Soko-kun

Search, inspect, and submit third-party OBS Studio plugins in a free, unofficial registry.

Developer ToolsCode & DevOps

Outdated check876 ms15 / 22
Nôm Na Việt — Hán Nôm Dictionary

Vietnamese Chữ Nôm & Hán: lookup, search, conversion, and original Đại Nam Quấc âm tự vị entries.

OtherData access / search

Outdated check929 ms15 / 22
AIR Bandenservice Haarlem

Car tyres in Haarlem, NL: search by size, all-in prices, fitting slots, order and pay via Mollie.

OtherData access / search

Outdated check966 ms15 / 22

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