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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7640 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
EMPORION — business facts from public registers

EU VAT and EORI checks, sanctions screening, company and LEI lookup, ECB rates. Free, no key.

OtherData access / search

Outdated check314 ms14 / 22
Posada Play

Posada Play: free printable PDF preview, browser customization and paid download availability.

OtherFile & docs

Responded316 ms14 / 22
Supplementenscanner

Cheapest supplements by normalized price per kg, serving or capsule, across Dutch stores.

OtherOther

Responded317 ms14 / 22
org.abcommunity/abcommunity

Find the right MCPs, tools and skills for any AI task - discovery over a 14k+ resource catalog.

OtherOther

Responded317 ms14 / 22
wopool.de Preisvergleich

Deutscher Preisvergleich für Pools – Bestpreis-Suche (read-only).

OtherOther

Responded318 ms14 / 22
Spann Stays

Read-only sample stays, booking constraints, and staged reservation actions for review.

OtherOther

Outdated check318 ms14 / 22
wolaptop.de Preisvergleich

Deutscher Preisvergleich für Laptops – Bestpreis-Suche (read-only).

OtherOther

Responded319 ms14 / 22
EVS Property — Costa del Sol homes

Homes for sale, long-term rentals and new builds on the Costa del Sol and in Málaga, Spain.

OtherOther

Responded319 ms14 / 22
Piso Radar

Subastas de viviendas del BOE y pisos de banco en España: búsqueda, fichas, cierres y mercado.

OtherOther

Responded320 ms14 / 22
IRI Lab

AI model ratings, Gateway prices in rubles, subscriptions and AI jobs in Russia. Read-only, no key.

OtherAI / LLM tooling

Responded321 ms14 / 22
woebike.de Preisvergleich

Deutscher Preisvergleich für E-Bikes – Bestpreis-Suche (read-only).

OtherOther

Responded321 ms14 / 22
heidi.living furnished stays

Furnished monthly stays in Los Angeles: regions, application links, answers. Read-only, no sign-in.

OtherOther

Responded322 ms14 / 22
InfectRisk

Flu, COVID-19 and RSV activity for 24 countries, plus the tracked WHO outbreak notifications.

OtherCommunication & messaging

Responded322 ms14 / 22
EU Business & VAT Checker

Validate an EU VAT number on VIES, look up an LEI, or search a company register.

OtherData access / search

Outdated check322 ms14 / 22
SteamGPT

Steam profiles, SteamID conversion, bans, FACEIT stats, friends and comparisons. Free, no API key.

OtherOther

Responded324 ms14 / 22
FIRMEN.directory

Swiss and Austrian company register facts and owner-maintained listings, each with its source.

OtherOther

Responded324 ms14 / 22
Ghana Services

Plumbers, electricians and phone repairers in Greater Accra confirmed by a person, by area.

OtherOther

Responded328 ms14 / 22
Larkella

Facts about Larkella, the AI receptionist and assistant for small business. Read-only.

OtherOther

Responded329 ms14 / 22
io.filingpulse/filingpulse

Hosted SEC EDGAR filings: Form 4 insider trades, 8-K events, S-1/IPO registrations. Read-only.

OtherOther

Responded330 ms14 / 22
TradeStar Insider

Filing-verified SEC EDGAR insider (Form 4), 13D, 13F & 8-K data, no sign-in. Verify any claim.

OtherOther

Responded330 ms14 / 22
Climate Insights Directory

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

OtherData access / search

Responded332 ms14 / 22
Hello, AI

Ask your assistant which frontier model to use and get a live, Elo-backed answer.

OtherOther

Responded332 ms14 / 22
Lustrix – mirrors made to measure

Price and design made-to-measure mirrors (PL/DE/AT); order on lustrix.eu.

OtherOther

Responded333 ms14 / 22
Věci Obecní

Oznámení z úředních desek a zasedání českých obcí: sledování, týdenní přehledy a hledání.

OtherOther

Responded333 ms14 / 22

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