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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1464 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
TravelType

Search and explore a global travel points-of-interest catalog (cities, countries, POIs).

TravelCode & DevOps

Outdated check241 ms12 / 22
Aviasurf

Search and compare flight prices, calendars, airports, routes, and destinations with Aviasurf.

TravelData access / search

Outdated check272 ms12 / 22
Thomas Cook holidays

Search Thomas Cook UK holiday packages (flight + hotel) and destination ideas, with a booking link.

TravelCode & DevOps

Outdated check286 ms12 / 22
MarketCode

UK property intelligence with evidence behind the numbers.

OtherOther

Responded307 ms12 / 22
HealthPass

Find verified travel-health doctors and request an appointment on HealthPass.

TravelData access / search

Responded308 ms12 / 22
il.co.moroc/morocco-travel

Morocco travel for Israeli travelers: e-visa, itineraries, guides, Shabbat times, hilula dates.

TravelData access / search

Outdated check309 ms12 / 22
DAIly outfits

What to wear today by city weather and travel packing lists by destination. Public, read-only.

TravelCode & DevOps

Outdated check328 ms12 / 22
CPF Mortgage Home Values

U.S. home values, comparable sales, rent estimates, forecasts and PDF reports from CPF Mortgage.

Real Estate & PropertyCode & DevOps

Outdated check349 ms12 / 22
Cuba Te Espera - Charter Flights

Search published charter flights, routes, schedules and advertised fares to Cuba.

TravelData access / search

Responded353 ms12 / 22
OKC Property Check

Free flip check for Oklahoma City small-commercial deals on hard-money terms; paid full report.

Developer ToolsCode & DevOps

Outdated check380 ms12 / 22
io.github.robertoyanguas-ops/assay

A2A & MCP Pre-Flight Security: SHA-256 tool schema rug-pull detection and liveness grades.

TravelCode & DevOps

Outdated check400 ms12 / 22
net.fsaircraft/catalog

Price comparison for Microsoft Flight Simulator add-ons: search, deals, per-store prices, history.

TravelData access / search

Outdated check406 ms12 / 22
Wholesale Heaven

AI real estate assistant: listings, tour scheduling, lead nurturing, market analysis, and CMA report

Real Estate & PropertyData access / search

Outdated check408 ms12 / 22
highbrow_fame data APIs (pay per call)

Pay-per-call data tools: grocery prices AU/NZ/UK, AI visibility, Maps leads, jobs, quotes.

Marketing & SalesCode & DevOps

Outdated check439 ms12 / 22
Hartrip: Harel travel insurance (Israel)

Harel travel insurance (Israel): prices by age, trip rules, coverage, medical conditions.

HealthcareData access / search

Outdated check463 ms12 / 22
Liberty.win

Free speech forum for life, liberty, and property. Read, post, and vote on news that moves people.

MediaData access / search

Outdated check465 ms12 / 22
In Viaggio alle Canarie

Canary Islands holiday packages from Italy: live flights, hotels, cars, excursions and prices

TravelData access / search

Outdated check479 ms12 / 22
Periodic Table 2026

Interactive periodic table with all 118 elements. Properties, comparisons, and more.

Developer ToolsCode & DevOps

Outdated check482 ms12 / 22
Map Combiner

Merge multiple Google Maps directions links into one, bypassing the 10-stop limit.

Developer ToolsCode & DevOps

Outdated check483 ms12 / 22
ExchangeRebel — pay-per-call APIs for AI agents (x402 on Solana)

180 pay-per-call APIs for AI agents: market, company, weather and dev tools, x402 on Solana.

Finance & CryptoPayments & trading

Responded485 ms12 / 22
Piwoom - Korea Smoking Area Map

Find smoking areas and no-smoking zones across South Korea, and report new smoking areas.

Developer ToolsCode & DevOps

Outdated check488 ms12 / 22
Travel Tracker

Travel checklists in 9 languages on six maps: world, USA, US NPs, Europe, China, India.

TravelCode & DevOps

Outdated check490 ms12 / 22
MindMap

Turn outlines and hierarchical notes into interactive mind maps through a hosted remote MCP server.

ProductivityFile & docs

Outdated check496 ms12 / 22
Rate-My-Agent

Get matched with a top-rated, review-verified real estate agent in the US or Canada.

Real Estate & PropertyData access / search

Responded503 ms12 / 22

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