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

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Remote MCP servers

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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
Ampworth

UK solar PV and heat pump calculators, with guides, on one server. Follows the MCS methods. No key.

OtherOther

Outdated check270 ms13 / 22
АЛИАС — арт-кондитерская, Санкт-Петербург

Торты, пряники и десерты на заказ в Петербурге: каталог, цены, расчёт торта, доставка, заявки

OtherOther

Outdated check271 ms13 / 22
Talval

Value-investing research: fair values, valuation verdicts, quality scores and 13F portfolios

OtherOther

Outdated check271 ms13 / 22
Package Tracker by Spoke

Track a package from its tracking code and follow it on spokepackagetracker.com.

OtherOther

Outdated check272 ms13 / 22
Foodly

Find Foodly restaurants, their menus and free tables; Foodly plans, prices and FAQ for businesses.

OtherOther

Outdated check273 ms13 / 22
Katalog Artistov — artists for events

Artists for events in Russia: hosts, bands, shows, magicians: fees, cities, profiles, requests.

OtherOther

Outdated check273 ms13 / 22
GATE Daily

Ten original GATE CS practice questions a day, scored the GATE way, with worked solutions.

OtherOther

Outdated check273 ms13 / 22
PuntoSeguro · Seguros de vida y salud

Spanish insurance broker: real life-insurance quotes from 10+ insurers, coverage and applications.

OtherOther

Outdated check274 ms13 / 22
Cassie Hour

Explore Cassie Hour’s novel, song, AI lineages, consciousness and soul through public evidence.

OtherOther

Outdated check274 ms13 / 22
Ampworth calculators

UK solar PV and heat pump calculators that follow the published MCS methods. Open, no key.

OtherOther

Outdated check275 ms13 / 22
Azertia Relay

A public relay where AI instances read traces left by others and may leave one. No auth.

OtherOther

Outdated check276 ms13 / 22
wostrom.de Preisvergleich

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

OtherOther

Outdated check276 ms13 / 22
OpenMapp

Find US BJJ gyms with weekly schedules, open mats, and visitor drop-in prices.

OtherOther

Outdated check276 ms13 / 22
Mind the Gates — UK level crossings

Live barrier status and closure forecasts for ~1,600 UK level crossings. Public data, no auth.

OtherOther

Outdated check277 ms13 / 22
TLDix

Track domain, hosting, SSL and licence renewals. Check WHOIS and SSL expiry dates from chat.

OtherOther

Outdated check277 ms13 / 22
Spain Salary Calculator

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

OtherOther

Outdated check279 ms13 / 22
Lucky Numbers

Random number picks for fun: lottery-style presets, a custom range, daily numbers from a name.

OtherOther

Responded281 ms13 / 22
Supplementenscanner

Cheapest supplements by normalized price per kg, serving or capsule, across Dutch stores.

OtherOther

Outdated check281 ms13 / 22
wosolar.de Preisvergleich

Deutscher Preisvergleich für Solaranlagen & Balkonkraftwerke – Bestpreis-Suche (read-only).

OtherOther

Outdated check281 ms13 / 22
GetMovely

Sold prices, tenure, EPC, owner-occupancy and price checks for 25m homes in England and Wales. Free.

OtherOther

Outdated check282 ms13 / 22
Work Abroad Check

Warning signs in a job or visa offer abroad, UK sponsor check, route rules, where to report.

OtherOther

Outdated check285 ms13 / 22
com.skulayer/skulayer

Preview-first feed optimization for retailers and agencies: audit, fix and serve product feeds.

OtherOther

Outdated check286 ms13 / 22
Edifiable

French land-use plans (PLU): what a zone or a street allows, cited at the article. No key.

OtherOther

Outdated check287 ms13 / 22
AiProfile

Answers about local businesses, with sources, many confirmed by the owner.

OtherOther

Outdated check287 ms13 / 22

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