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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7637 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
APKCube

Search Android apps, check APK signing and scans, and get verified APK download links.

OtherData access / search

Responded207 ms14 / 22
ENYAL by Greenland AI

Accounts are powered by ENYAL identity, and records are verifiable without trusting us.

OtherOther

Responded207 ms14 / 22
Adbull

Adbull, digitalt bureau i Aarhus: ydelser, priser, cases, artikler og kontakt.

OtherOther

Responded208 ms14 / 22
SparkAds

Manage your SparkAds slot: your stats, the free-hour grid, network totals, and your own creative.

OtherOther

Responded208 ms14 / 22
FairSqft Dubai Property Facts

Dubai home prices, rents, comparables and forecasts from Dubai Land Department open data.

OtherOther

Responded208 ms14 / 22
Deberli

Who buys what you sell: count the decision-makers that fit, with real examples and buying signals.

OtherOther

Responded208 ms14 / 22
Quant Daily

Daily verified GRE and GMAT quant drill: graded answers, hints and worked solutions.

OtherOther

Responded208 ms14 / 22
Near Fine

Search booksellers worldwide for any book, new or used, and set alerts for copies not listed yet.

OtherData access / search

Responded209 ms14 / 22
Documarium

Your docs site. No editor to open. Just ask Claude.

OtherAI / LLM tooling

Responded209 ms14 / 22
Sienna, Knobs.co hardware advisor

Knobs.co cabinet-hardware advisor: sizing, fits, finishes, prices, plans, cart and sample links.

OtherOther

Responded209 ms14 / 22
AI Promo Design

Design custom t-shirts, hoodies, caps, mugs and totes, price an order, and link to order it.

OtherOther

Responded210 ms14 / 22
firenum retirement planner

When can you retire? A FIRE plan from your numbers, graded by Monte Carlo and every year since 1872.

OtherOther

Responded211 ms14 / 22
PlanElec Calculators

Free AREI cable sizing, Synergrid C10/26 inverter check, LED strip calculator. No account.

OtherOther

Responded211 ms14 / 22
LivinIsto CZ — home watch

Watches Czech home listings for a buyer. Takes no contact; active only after e-mail opt-in.

OtherOther

Responded212 ms14 / 22
Quantum Expectations

Quantum error-correction feasibility: success probability, qubit overhead, records, trends.

OtherOther

Responded212 ms14 / 22
AlertsBar

Domain exposures: breaches, infostealers, ULP heap, cookies. Counts and samples, free.

OtherOther

Responded212 ms14 / 22
Aureum Technology Website

German IT service provider: services, prices, contact and website search.

OtherData access / search

Outdated check212 ms14 / 22
Ni Biashara Diaspora Directory

Free read-only search of 2,000+ African and Caribbean diaspora businesses in the US and Canada.

OtherData access / search

Responded213 ms14 / 22
Doppelreim Rhymes

Multisyllabic, vowel and classic rhymes plus rhyming lines in 56 languages for lyrics and poems.

OtherOther

Responded213 ms14 / 22
Ampworth documents

Search and read UK guides on solar PV, heat pumps, batteries and MCS certification.

OtherFile & docs

Responded213 ms14 / 22
Cerveja Barata

Beer prices at bars in Brazil by price per litre, with supermarkets and depósitos ranked apart

OtherOther

Responded213 ms14 / 22
Prince of Post

Print a Royal Mail QR code (Vinted, eBay, ASOS returns) as a 6x4 shipping label at home.

OtherOther

Responded214 ms14 / 22
My Star Letter: Human Design Chart

Human Design chart from a birth date, time and time zone: type, authority, profile, centers.

OtherOther

Responded214 ms14 / 22
Sporthotel IDEAL Hochgurgl

Live-Verfügbarkeit, Preise und Buchungslinks direkt beim Sporthotel IDEAL Hochgurgl in Tirol.

OtherOther

Responded214 ms14 / 22

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