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
VXLVERSE

Turn a story idea into a 3D game that plays in the browser, and get a link that opens it.

OtherOther

Outdated check192 ms13 / 22
Quantum Expectations

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

OtherOther

Outdated check192 ms13 / 22
PCBBrew

Boards and modules for real PCBs: catalogue, KiCad parts, wiring and power checks, published boards.

OtherOther

Outdated check193 ms13 / 22
horoscoop.app

Nederlandstalige horoscopen: dag, week, maand en jaar per sterrenbeeld, match, maan en hemel.

OtherOther

Outdated check193 ms13 / 22
Spanndecken ROTH Preisrechner

Spanndecken (stretch ceiling) price calculator: free non-binding net EUR estimate from the m² area.

OtherOther

Outdated check195 ms13 / 22
Civica citizenship test prep

Read-only citizenship test facts, official sources and sample questions for 8 countries.

OtherOther

Outdated check195 ms13 / 22
Cosmic Chemistry

Free Vedic astrology: birth chart, dasha, Sade Sati, Saturn return, panchang, planetary hours.

OtherOther

Outdated check195 ms13 / 22
DiffiCat

Compare a website before and after a migration: missing pages, content changes, visual diffs.

OtherOther

Outdated check196 ms13 / 22
Juntamos: organizar grupos

Crear amigo invisible, votaciones y repartos de gastos para un grupo

OtherOther

Outdated check197 ms13 / 22
OFACScreen Sanctions Screening

Screen names and addresses on US, UN, EU, UK and other sanctions and export-control lists. Free.

OtherOther

Outdated check197 ms13 / 22
SparkAds

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

OtherOther

Outdated check198 ms13 / 22
London Tourist Map

London sights, hidden gems, checked opening hours, ticket prices, step-free Tube and a day planner.

OtherOther

Outdated check198 ms13 / 22
FairStash — Roblox trade values

Roblox trade values and trade fairness for MM2, Adopt Me and Flee the Facility.

OtherOther

Outdated check198 ms13 / 22
Brasspage

Free small business website check, free redesign form link, Tack Board pin link, live numbers

OtherOther

Outdated check199 ms13 / 22
Porchlight: 2-4 unit loan limits and owner-occupant math

FHA and conforming 2-4 unit loan limits by county, plus owner-occupant house-hack math.

OtherOther

Outdated check200 ms13 / 22
Open Country: USDA Section 538 and 515 data

USDA rural eligibility, Section 538 income limits, 538 loans and lenders, 515 rentals.

OtherOther

Outdated check200 ms13 / 22
IQInsight – IQ Percentile & Score Guide

Calculate theoretical IQ percentiles and explain public score guides with clear limitations.

OtherOther

Outdated check200 ms13 / 22
AstraNL local proof NL

Verify a place in the Netherlands: a verified local hand checks it, you get a sealed receipt.

OtherOther

Outdated check201 ms13 / 22
wospeicher.de Preisvergleich

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

OtherOther

Outdated check202 ms13 / 22
AI-BELARUS — Belarus business registry

Belarusian companies by UNP: state registry answers with source and sha256 for every fact.

OtherOther

Outdated check202 ms13 / 22
ENYAL by Greenland AI

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

OtherOther

Outdated check202 ms13 / 22
StackRates VPS prices

VPS prices read daily from providers' own pricing pages and APIs: cheapest by size, place or app.

OtherOther

Outdated check203 ms13 / 22
urlhub

Many links as one short link with a QR code; read urlhub sets and preview what links are about.

OtherOther

Outdated check205 ms13 / 22
Rudko — vertebrologist (Chernivtsi, Ukraine)

Book a Ukrainian-speaking vertebrologist in Chernivtsi, Ukraine: find slots and book for the user.

OtherOther

Outdated check206 ms13 / 22

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