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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5335 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
CalvingWatch Public Knowledge

Read-only CalvingWatch product, tester, camera, privacy and safety facts; no customer data.

OtherOther

Responded118 ms13 / 22
Fidenta Verify

Independent fact-checking for AI answers: a verdict and sources for every claim.

OtherOther

Responded118 ms13 / 22
com.cordering/whitelabel-ordering

Order food from Cordering white-label restaurants: browse menus, confirm, then place an order.

OtherOther

Outdated check118 ms13 / 22
Sailtix

Ferry and fast-boat schedules, seats and fares, boat and fishing charters across Indonesia.

OtherOther

Responded119 ms13 / 22
RPN Calculator

Evaluates Reverse Polish Notation (postfix) expressions: arithmetic, trig, logs, bitwise ops.

OtherOther

Responded119 ms13 / 22
CarRentalList

Exotic car rentals from independent US companies: fleets, published daily rates, rental terms.

OtherOther

Responded119 ms13 / 22
Oltre il Solco

Serie storiche su agricoltura, acqua e irrigazione, con la fonte originale di ogni dato.

OtherOther

Outdated check119 ms13 / 22
Cheapest Grocery Basket

Where to buy a whole grocery list today: local prices, per-unit and cross-store comparison.

OtherOther

Responded120 ms13 / 22
contboxx Procurement

Plans, prices and non-binding quotes for contboxx digital signage content. Nothing is bought here.

OtherOther

Responded120 ms13 / 22
Mon Batch Cooking

Recettes de batch cooking en français : recherche, idées avec vos placards, sessions de cuisine.

OtherOther

Outdated check120 ms13 / 22
Mystic Timing: birth time readings

What your birth date and time say about you: personality, love, timing. Readings in 20 languages.

OtherOther

Responded121 ms13 / 22
Break Room

Arena where AI agents play Werewolf, Diplomacy, bluffing and auction games against other agents.

OtherOther

Outdated check121 ms13 / 22
GetFit

Build a workout that fits your time, gear and body — free, no sign-in.

OtherOther

Responded122 ms13 / 22
French family benefits (CNAF corpus)

French family-benefit models (CNAF corpus) as executable rules with sources; independent demo

OtherOther

Outdated check122 ms13 / 22
BGB (Germany)

German Civil Code (BGB) as executable rules: periods, deadlines and more, answered with grounds

OtherOther

Outdated check123 ms13 / 22
Loud Nearby

Metal, rock, punk and goth concerts in Poland: a band's upcoming gigs or what plays in a city.

OtherOther

Outdated check123 ms13 / 22
Pikes Peak Trip Planner

Plan a Pikes Peak day: timed-entry permit, gate hours, live road status, costs, hike times, facts.

OtherOther

Outdated check123 ms13 / 22
KiedyKoncert.pl

Who is playing in your city and when? Upcoming concerts in Poland. Read-only, no account.

OtherOther

Outdated check124 ms13 / 22
Citexact : jurisprudence administrative française

Jurisprudence administrative française vérifiée (CE, CAA, TA), citée mot pour mot, liens Légifrance.

OtherOther

Outdated check124 ms13 / 22
Rechnungslotse: deutsche E-Rechnung

XRechnung/ZUGFeRD erstellen, gegen EN 16931 prüfen, Fehler mit Regel-ID erklären. Ohne Konto.

OtherOther

Responded125 ms13 / 22
Approval Link — Quotes and Proofs

Quote/proof approval drafts. Free; creator account + OAuth: https://kurodalab.com/en/approval-link/

OtherOther

Responded125 ms13 / 22
Petnecto

Paw to paw. Shelter pets, one question away: adoptable pets near you, and how to reach the rescue.

OtherOther

Responded126 ms13 / 22
Standard Titanium Quotations

Request titanium quotations and check enquiry status with Standard Titanium.

OtherOther

Outdated check126 ms13 / 22
Conduit.loans: CMBS conduit loan sizer

CMBS conduit loan sizer and 2026 underwriting stats (DSCR, LTV, debt yield) from SEC filings.

OtherOther

Outdated check126 ms13 / 22

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