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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5966 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
YedaBase

Search and open investor records: family offices, VCs, funds of funds, permanent capital, RIAs.

OtherData access / search

Responded203 ms13 / 22
CheckMyVIN

Decode US-market VINs and list NHTSA recall campaigns for the make, model and year. Free, no auth.

Marketing & SalesData access / search

Outdated check203 ms13 / 22
Chateaupedia

Search 10,500 French castles and read verified entries: hours, prices, accessibility.

OtherData access / search

Responded204 ms13 / 22
Claudeers MCP Server

Search the Claudeers registry of Claude tools, ranked by maintenance and community signals.

Developer ToolsData access / search

Responded205 ms13 / 22
com.desaira/desaira

Search adult porn video (NSFW, 18+): nude clips, creators, hashtags. Read-only, no API key.

MediaData access / search

Responded206 ms13 / 22
Bookd

Search and request stays at independent hotels, B&Bs, guesthouses and vacation rentals, direct.

TravelData access / search

Responded208 ms13 / 22
WeatherXM FACT — Forecast Accuracy & Ground-Truth Verification

Scores 45 NWP & AI weather models (ECMWF, GFS, ICON, meteoblue, MOSAIC) against 8,927 stations.

Data & AnalyticsData access / search

Responded212 ms13 / 22
AnyGett

AI-agent-first offers directory: search and publish listings via MCP.

Developer ToolsData access / search

Responded213 ms13 / 22
org.pinnacleblooms/ask

Non-diagnostic child-development knowledge by Pinnacle Blooms: search, milestones, ICF crosswalk.

OtherData access / search

Outdated check213 ms13 / 22
Relm CRM

API-first CRM for LLMs - contacts, companies, deals and activities over a native MCP server.

Marketing & SalesData access / search

Responded215 ms13 / 22
OfferMagnet Jobs

Live job search (US, France, Europe, remote) with each posting's visa-sponsorship stance. Free.

OtherData access / search

Outdated check216 ms13 / 22
CasaNest

Search public property listings in Portugal, compare homes and read INE housing statistics.

Data & AnalyticsData access / search

Responded218 ms13 / 22
Premium cruise fares

Search premium cruise fares by line, ship, nights, date, and rate.

TravelData access / search

Responded218 ms13 / 22
SoundBoardio

Search quote sounds from movies, series and personalities; each links to a page that plays it.

MediaData access / search

Responded219 ms13 / 22
com.detourmap/places

Places worth a detour, from Wikidata: search, nearby lookup, fame rankings, stats. No key, CC0.

OtherData access / search

Responded219 ms13 / 22
MediMo

Find and book UK private physiotherapy, osteopathy and chiropractic clinics, with live availability.

HealthcareData access / search

Outdated check219 ms13 / 22
Företagskoll – Nordic & UK company data

Company lookups and annual-account financials: Sweden, Norway, Finland, UK. Pay per call (x402).

Finance & CryptoData access / search

Outdated check219 ms13 / 22
GameDeal

Read-only PC game search, current store offers and recorded price history. No account required.

OtherData access / search

Responded221 ms13 / 22
network.wellknown/wellknown

Live index of AI agents, MCP servers and tools with observed liveness and capability search.

Developer ToolsData access / search

Responded223 ms13 / 22
ERP Partner Finder

Search, compare and shortlist Odoo partners in Germany, Austria and Switzerland.

OtherData access / search

Outdated check223 ms13 / 22
com.eventcompletion/events

Search source-verified events (sports, festivals, school holidays) and create progress pages.

EducationData access / search

Responded224 ms13 / 22
Faceabot Geocoding

Address to coordinates and back, postal codes, worldwide (OpenStreetMap). Free, no key.

Data & AnalyticsData access / search

Responded224 ms13 / 22
FortSu UK

Running shoe prices in the UK (fortsu.co.uk): search, specs and minimum price history.

OtherData access / search

Outdated check225 ms13 / 22
IleM² – ceny nieruchomości w Polsce

Polish real estate: deed-based prices, zoning, utilities, risks, valuations, new developments.

Real Estate & PropertyData access / search

Outdated check227 ms13 / 22

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