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

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7738 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
revisia

Systematic reviews from chat: PRISMA 2020 diagrams, risk-of-bias figures, kappa and AI screening.

OtherDatabase

Responded240 ms13 / 22
Spark Apps Catalogue

Read-only catalogue of the Spark apps: what each one does, its stack, and where it runs.

OtherOther

Responded242 ms13 / 22
GiftChecker

Read-only price estimates for Telegram collectible gifts: collections, models, traits, sales.

OtherCommunication & messaging

Responded243 ms13 / 22
com.lobbyvoices/receptionist-toolkit

Free receptionist tools: phone scripts, IVR menus (EN+ES), ElevenLabs prompts, missed-call math

OtherOther

Responded243 ms13 / 22
ai.kaiv/version-truth

Latest versions, LTS windows, and EOL dates for 300+ products. Fresh ground truth for stale models.

OtherOther

Responded244 ms13 / 22
Byteland

A night city of developers: README cards, repo contributor streets, a year in lights, project rooms.

OtherFile & docs

Responded245 ms13 / 22
TimeZero Resurrection

Unofficial restoration of the TimeZero MMORPG: AI agents play beside humans. Game texts in Russian.

OtherOther

Responded246 ms13 / 22
OutletPicks

Cost per unit of Amazon US products: cheapest per oz, count or GB, and each category's median.

OtherOther

Responded246 ms13 / 22
B.R.M Chronographes - Watch Configurator

Configure, price, render and order a made-to-order B.R.M watch (French manufacture). No auth.

OtherOther

Responded246 ms13 / 22
OkeyStay

Search holiday rentals by town and dates, with total prices, and get a ready-made booking link.

OtherData access / search

Responded247 ms13 / 22
AppBoard.pro product discovery

Search community-ranked software products: trending launches, details, and alternatives to a tool.

OtherData access / search

Responded248 ms13 / 22
Przetargowy Janusz — Polish public tenders

For Przetargowy Janusz customers (trial or paid): Polish tenders, AI summaries, pipeline, filling

OtherOther

Responded248 ms13 / 22
shopfetch

Did your AI pick the right product?

OtherOther

Responded248 ms13 / 22
BEEP.rent — car rental in Poland

Search, price and book rental cars across Poland; the customer confirms on beep.rent.

OtherData access / search

Responded250 ms13 / 22
Cronache Valtellinesi

Archivio dei periodici storici della provincia di Sondrio (1825-2024): ricerca, lettura, citazioni.

OtherOther

Responded251 ms13 / 22
Foundations Counseling

Counselors, services, offices, fees, and intake at Foundations Counseling, Northern Colorado.

OtherOther

Responded252 ms13 / 22
Mastering Financial Markets

Read-only fundamentals of developed-market listed companies from official filings, with dates.

OtherOther

Responded253 ms13 / 22
Dokyumi Document Extraction

Save schemas, preflight processing charges, extract approved documents and export owned results.

OtherFile & docs

Responded255 ms13 / 22
Avahit

Amazon products by brand and category, with a link to each listing on Amazon.

OtherOther

Responded255 ms13 / 22
Klassio — EU customs tariff (CN/HS) classification + EUDR

EU customs tariff classification: CN/HS code + GIR rule, MFN duty and EUDR scope. Sourced.

OtherOther

Responded256 ms13 / 22
PropertyList: Spanish Property MLS

First-party Spanish and Portuguese property listings with notary-verified prices.

OtherOther

Responded257 ms13 / 22
DrapeCut

Simulate composite fabric draping on CAD surfaces; compare fibre angles and export DXF/PDF patterns.

OtherFile & docs

Responded257 ms13 / 22
Heart Homes — Dubai property data

Dubai property prices, rents and trends from official Dubai Land Department records. Read-only.

OtherOther

Responded258 ms13 / 22
OneLessTool

Find software subscriptions you can drop using tools you already own, with vendor-verified prices.

OtherPayments & trading

Responded260 ms13 / 22

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