MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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.

Connect your agent

1439 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
Spin My Day

Plans a whole day out in any city, matched to the weather, your mood and diet.

Developer ToolsCode & DevOps

Responded36 ms15 / 22
Switchboard Finance

Australian business loans: ATO debt, caveat, equipment, property. Check fit, then a broker calls.

Developer ToolsCode & DevOps

Outdated check63 ms15 / 22
IoMarkets Topup (demo)

Demo only, payments switched off. Travel eSIMs and mobile top-ups priced in USDC via x402.

Finance & CryptoPayments & trading

Outdated check67 ms15 / 22
easygroupflights

Group flight quotes for parties of 10 or more passengers.

TravelData access / search

Outdated check72 ms15 / 22
Fare Deals

Cheap flights from any city, to one place or anywhere, with the cheapest days to fly.

TravelCode & DevOps

Responded75 ms15 / 22
HORIZON SHIELD: Construction Estimate Auditor for Japan (KIRA)

Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.

Developer ToolsCode & DevOps

Outdated check75 ms15 / 22
Good Turn Studio (all tools)

All 27 Good Turn Studio helpers in one server: money, health, jobs, travel, art, halal, scripture.

TravelCode & DevOps

Outdated check83 ms15 / 22
esimgomobile — Travel eSIM Tools

Travel eSIM plan catalog, coverage and trip-planning tools for agents and developers.

TravelData access / search

Outdated check91 ms15 / 22
Thailand Fun Experiences

Phuket activity search with live weather, sea state, transfer times and party-fit filtering.

Data & AnalyticsData access / search

Outdated check92 ms15 / 22
Friday Flight Deals

The newest cheap flight deals from the Friday Flight Deals newsletter.

Marketing & SalesData access / search

Outdated check98 ms15 / 22
Windshield Weather

Weather forecasts along driving routes and highways.

Data & AnalyticsData access / search

Outdated check99 ms15 / 22
Digital Gemology: gem identification and gemstone properties

Identify gemstones by refractive index, birefringence, SG, pleochroism and spectrum. Compare 7 gems

OtherOther

Outdated check141 ms15 / 22
NEMO x402 Micro-Services

34 paid tools: site/SEO, weather, crypto+markets, podcasts, YouTube, Polymarket. x402/MPP/Stripe.

Finance & CryptoPayments & trading

Outdated check147 ms15 / 22
SEO and Keyword Data API

SEO data: keyword volume, CPC, Trends, backlinks, domains, SERP, Maps, audits. Pay per call (x402)

Finance & CryptoData access / search

Outdated check157 ms15 / 22
Pinloft: Batch Geocoder — Address to Lat/Long + Census FIPS

Pinloft: US address to lat/lon, county, FIPS; reverse geocoding. Free, no key.

GovernmentCode & DevOps

Outdated check168 ms15 / 22
GUTHMANN® Berlin Real Estate

Berlin real estate for AI agents: granular market data and property search, free, by GUTHMANN®.

Real Estate & PropertyData access / search

Outdated check172 ms15 / 22
VoyageHacks

Multilingual travel guides, gear picks and booking links for AI travel agents.

TravelData access / search

Outdated check181 ms15 / 22
Simvito eSIM

Compare travel eSIM plans and each local network (4G/5G), check phone support, get payment links.

Finance & CryptoPayments & trading

Outdated check207 ms15 / 22
Veabird: ski & beach trip planner

Ski & beach trip planning: resort matching, snow and sargassum forecasts, lodging and flights.

TravelCode & DevOps

Outdated check208 ms15 / 22
RoamDial — World Radio Map

Explore 35,000+ live radio stations from 215 countries by city, genre, mood, and ICY track title.

MediaCode & DevOps

Outdated check225 ms15 / 22
Airfare Brain

True cost of flight extras (bags, seats, fees) on 29 airlines in Europe and North America, sourced.

TravelData access / search

Outdated check227 ms15 / 22
DSCR Loan Calculator

DSCR loan calculator for rental property: DSCR, lender tiers, max loan, rent needed, amortization.

Real Estate & PropertyCode & DevOps

Responded230 ms15 / 22
Close Knit

Neighbourhood and home evidence for England, London in depth: prices, rents, schools, crime, travel.

EducationKnowledge & memory

Outdated check242 ms15 / 22
RoamDial — World Radio Map

Explore 35,000+ live radio stations from 215 countries by city, genre, mood, and ICY track title.

MediaCode & DevOps

Outdated check246 ms15 / 22

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