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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5233 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
China Salary Calculator

China salary 2026: net pay itemised, gross for a target net, employer cost, vs the Netherlands.

OtherOther

Outdated check154 ms13 / 22
Bulgaria Salary Calculator

Bulgaria salary 2026: net pay itemised, gross for a target net, employer cost, vs the Netherlands.

OtherOther

Outdated check154 ms13 / 22
Picksly

Best phone, tablet, laptop or smartwatch for your profile and budget: lab scores, live prices.

OtherOther

Outdated check154 ms13 / 22
Alishahi Insurance

Request a home, auto, business, contractor or trucking insurance quote from a licensed broker.

OtherOther

Outdated check154 ms13 / 22
it.datituristici/datituristici

Dati turistici ISTAT di ogni comune italiano: presenze, arrivi, posti letto, popolazione.

OtherOther

Outdated check155 ms13 / 22
Worth Sheet: apartment building value at today's loan rates

Apartment building value and loan-supported price at the live 10-year Treasury rate.

OtherOther

Outdated check156 ms13 / 22
Friction

Sourced pain points and feature requests of B2B software users, read-only, with source links.

OtherOther

Outdated check156 ms13 / 22
Motif & Moi

Custom clothing printed in Rennes, France: catalog, quotes, delivery dates, prefilled order links.

OtherOther

Outdated check157 ms13 / 22
Turkey Salary Calculator

Turkey salary 2026: net pay itemised, gross for a target net, employer cost, vs the Netherlands.

OtherOther

Outdated check158 ms13 / 22
Ascension: AI app leaderboard

Daily ranks of consumer AI apps across the App Store and Google Play. Read-only, ranks only.

OtherOther

Outdated check158 ms13 / 22
Jagannatha Hora — Vedic Astrology (Jyotish, Kundli, Horoscope, Panchang)

Vedic astrology (Jyotish): birth charts, divisional charts, dashas, yogas, transits, panchang

OtherOther

Outdated check161 ms13 / 22
Stackup: Fannie, Freddie and HUD multifamily loan sizing

Size an apartment loan under Fannie Mae, Freddie Mac and HUD published limits, side by side.

OtherOther

Outdated check162 ms13 / 22
contix herramientas

Free no-auth tools for Spain: validate IBAN, EU VAT check (VIES), Modelo 303 sums, Veri*factu dates.

OtherOther

Outdated check162 ms13 / 22
ChatStack - App Cost Estimator

Estimate development costs and hours, scope an MVP, and write a PRD with user stories and specs.

OtherOther

Outdated check163 ms13 / 22
Commerce OS Integrator

Cennik, kalkulator oszczędności i blog Commerce OS Integrator, alternatywy dla BaseLinkera.

OtherOther

Outdated check164 ms13 / 22
Codice Fiscale Subito

Compute, decode and verify the Italian codice fiscale; codici catastali of every era.

OtherOther

Outdated check164 ms13 / 22
Briefflink – Briefe mit KI versenden

Send real paper letters from AI chat: print, envelope, postage, delivery. Pay per letter.

OtherOther

Outdated check164 ms13 / 22
CHS Backflow — book backflow testing in Charleston

Book backflow testing in Charleston, SC: prices, ZIP coverage, free callback.

OtherOther

Outdated check164 ms13 / 22
Tjaz

Make, find and share multiple-choice quizzes that people play on tjaz.com, alone or together

OtherOther

Outdated check165 ms13 / 22
Claimondo — Kfz-Gutachter finden & Termin buchen

Findet Kfz-Gutachter in Deutschland, zeigt freie Termine und bucht den Besichtigungstermin.

OtherOther

Outdated check166 ms13 / 22
Spectacular Atlas

Light festivals, lantern festivals, drone shows and more worldwide, by trip dates, place and type

OtherOther

Outdated check166 ms13 / 22
Faceabot Earthquakes

Recent earthquakes worldwide or near a place, from USGS. Free, no key.

OtherOther

Outdated check166 ms13 / 22
Lingoris — traduction assermentée

Sworn (certified) translation in France: instant firm price, 100+ languages, order tracking.

OtherOther

Outdated check167 ms13 / 22
Info Scolarité

Écoles, collèges et lycées de France : fiche, recherche et collège de secteur d'une adresse.

OtherOther

Outdated check168 ms13 / 22

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