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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1463 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
Delve to Life

Dress codes explained, outfit formulas by occasion and weather, and clothing colour combinations.

Data & AnalyticsData access / search

Responded68 ms12 / 22
AddressLore

Vancouver house histories by address: who lived there each year to 1945, permits and the 1912 map.

Developer ToolsCode & DevOps

Outdated check75 ms12 / 22
FlightAware MCP

Live flight status and scheduled-route search via the official FlightAware AeroAPI.

TravelData access / search

Responded78 ms12 / 22
OLX MCP

OLX.pl classifieds in every category: property, cars, electronics, jobs, free items; offer details.

OtherOther

Responded79 ms12 / 22
Professor Sausages — Web & Documents

Read pages & files to text, news, weather, market holidays and timezones via x402.

Data & AnalyticsFile & docs

Responded81 ms12 / 22
Otodom MCP

Polish property on Otodom.pl: flats, houses, rooms, plots, commercial to buy or rent; offer details.

OtherOther

Responded81 ms12 / 22
Flightcat

Search flights by flexible dates and broad destinations, with live prices and booking links.

TravelData access / search

Outdated check81 ms12 / 22
Outdated check84 ms12 / 22
com.stopovercity/stopover-planner

Live Google Flights search: stopover itineraries, country sweeps, explore anywhere, booking links

TravelData access / search

Outdated check84 ms12 / 22
Nieruchomosci Online MCP

Polish property listings on nieruchomosci-online.pl: flats, houses, plots, premises to buy or rent.

OtherOther

Responded86 ms12 / 22
FreeTier Agent API

x402 or card pay-per-call: invoice JSON, DNS, whois, SSL, geocode, RSS feeds, sitemaps, QR codes

Finance & CryptoPayments & trading

Responded87 ms12 / 22
Zovo Mind Map

Turns an outline or a plan into a clean mind map you can print or download.

Developer ToolsCode & DevOps

Outdated check91 ms12 / 22
GLOBALCELL eSIM

Travel eSIMs for 130+ countries: plan a trip, compare plans, buy, install and diagnose.

TravelData access / search

Responded92 ms12 / 22
switch402

Markdown scrape, site map, page metadata, screenshots, web search and PDF to text. Pay per call

OtherData access / search

Responded92 ms12 / 22
Google Flights MCP

Live Google Flights fares: search routes, discover cheap deals from an origin.

TravelData access / search

Responded92 ms12 / 22
Outdated check96 ms12 / 22
Growkik Directorios

75,000+ Mexican companies: construction, manufacturing, industrial parks, real estate, freight.

Real Estate & PropertyData access / search

Outdated check96 ms12 / 22
Outdated check99 ms12 / 22
Google Hotels MCP

Live Google Hotels search: properties with rates and ratings, plus photos and reviews.

TravelData access / search

Responded102 ms12 / 22
NSW Planning Data (x402)

NSW DAs, CDCs and property planning reports: zoning, height, FSR, nearby DAs. Pay per call via x402.

Real Estate & PropertyCode & DevOps

Outdated check113 ms12 / 22
PropertyLabs

Public building permits, property assessments, parcels and development intelligence.

Developer ToolsCode & DevOps

Outdated check114 ms12 / 22
Palmera property catalog

Off-plan and ready property in the UAE, Oman, Georgia, Cyprus, Bali, Thailand and London.

OtherOther

Outdated check116 ms12 / 22
NanoTools

44 tools for AI agents: Trends, SERP, SEO audits, screenshots, weather, FX, whois, RSS.

Developer ToolsCode & DevOps

Outdated check121 ms12 / 22
SiteCheck Health & Travel

121 pay-per-call agent tools: health care, drug, provider and travel data tools. x402

HealthcareCode & DevOps

Outdated check121 ms12 / 22

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