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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5973 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
Framezone

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

Data & AnalyticsData access / search

Responded360 ms13 / 22
FlyScout flight deals

Read-only cheap return flight deals from Luxembourg and 6 nearby airports, rescanned daily.

TravelData access / search

Outdated check360 ms13 / 22
Option Desk

Option analytics over the SYNTH sample or a permitted chain: Greeks, positioning, payoffs, plots.

Data & AnalyticsData access / search

Outdated check361 ms13 / 22
Veículo

Look up a vehicle by license plate against official sources (make/model, year, status, restrictions)

Developer ToolsData access / search

Outdated check361 ms13 / 22
Operação de Transporte ANTT

Look up a road freight transport operation registered with Brazil's ANTT by RNTRC and RENAVAM, confi

Developer ToolsData access / search

Outdated check364 ms13 / 22
Stack Gems

Read-only search of 900+ reviewed developer tools, each with a verdict and caveats. Free/OSS first.

OtherData access / search

Responded365 ms13 / 22
Pure Report — Neutral News

Neutral, bias-scored news for AI agents: compare left/right media-bias framing, fact-check receipts.

MediaData access / search

Outdated check366 ms13 / 22
AstroWay API Docs

AstroWay API documentation search and endpoint lookup with credit prices. No API key needed.

OtherData access / search

Responded368 ms13 / 22
Climate Insights Directory

Search and cite civil-society climate and energy research: reports, policy briefs and analyses.

OtherData access / search

Outdated check369 ms13 / 22
Aventurator

Multilingual restaurant menus and local travel discovery in Lanzarote. Read-only, no API key.

TravelData access / search

Responded371 ms13 / 22
Consulta de Radar (PSIE/Inmetro)

Look up the metrological status of a city's speed cameras and breathalyzers in Inmetro's official re

Developer ToolsData access / search

Outdated check371 ms13 / 22
Mammoth Docs

Search and read the Mammoth Analytics docs. Tools: search_docs, get_doc, list_docs.

Data & AnalyticsData access / search

Responded373 ms13 / 22
AgentWorkmark

Search reviewed AI services, inspect completed-work evidence, and check current availability.

OtherData access / search

Responded377 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
GifSnap by Rowix

Search GIFs and retrieve animated media URLs; show reactions in clients that support MCP Apps.

Developer ToolsData access / search

Responded380 ms13 / 22
Mercado Financeiro BR

Brazilian financial market data (B3): quotes, fundamentals, dividends, REITs (FIIs), BDRs, crypto, F

Finance & CryptoData access / search

Outdated check380 ms13 / 22
Ploshadkin — event venues in Russia

Event venues in Russia: restaurants, lofts, hotel halls, country clubs. Capacity, prices, requests.

TravelData access / search

Outdated check381 ms13 / 22
Stable News

One news edition a day, ranked by a published rule, in our own words with links to the outlets.

MediaData access / search

Responded382 ms13 / 22
com.ruzora/ruzora

Pre-vetted senior LATAM engineers for US startups: hiring leads, open roles, applications.

Marketing & SalesData access / search

Outdated check382 ms13 / 22
TrackForge

Check a catalogue against The MLC, look up a song's writers, publishers and ISWC, validate CWR files

MediaData access / search

Outdated check382 ms13 / 22
Zephior Discovery

Search, follow and read published public tender notices with sources, plus Zephior resources.

OtherData access / search

Responded387 ms13 / 22
Sharebench

Sharebench — search & pull AI skills, agents, prompts & playbooks (SKILL.md) into any MCP client

Developer ToolsData access / search

Responded388 ms13 / 22
Honee – cruise · honeefy

Find bookable sea and river cruises; ports, ships, cruise lines and an advisor opinion.

TravelData access / search

Responded389 ms13 / 22
cc.thecolony/mcp-server

Remote MCP server for The Colony — a social network for AI agents (posts, DMs, search, marketplace).

Developer ToolsData access / search

Outdated check392 ms13 / 22

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