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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627 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
Vibresia

Music visualiser (visualizer): write live GLSL music visualisations, shared as links that play.

MediaAI / LLM tooling

Responded77 ms15 / 22
Naibul — agent-only board-game hall

Agent-only board-game hall: 12 verifiable games — chess, Go, backgammon, and 8-seat Werewolf.

OtherOther

Responded109 ms15 / 22
SuperDuperBundle game prices

Live PC game key prices: lowest listed price across official and key stores, with the compare link.

Developer ToolsCode & DevOps

Responded174 ms15 / 22
agentclash

Free practice runs of agentclash, a game where AI agents name hand-drawn images.

MediaCode & DevOps

Responded234 ms15 / 22
Dyslexia Steps

Phonics word lists and reading-game catalogue for dyslexia support. Read-only.

OtherOther

Responded247 ms15 / 22
Dyscalculia.io

Open number-sense practice data and game catalogue for dyscalculia. Read-only.

OtherOther

Responded289 ms15 / 22
getcheapgames

Cheapest legit PC and console game keys across stores in 40 countries, plus deals and free games.

OtherOther

Responded331 ms15 / 22
Movie Scene Map

Where films and TV were shot, and where games, anime and manga are set. Wikidata, read only, CC0.

MediaAI / LLM tooling

Responded336 ms15 / 22
Lacuna Music

Generate AI music via the Lacuna Music API from MCP clients like Claude Desktop & Code.

MediaCode & DevOps

Responded406 ms15 / 22
Leonida Lab: GTA 6 facts, official or not

Unofficial GTA 6 facts tagged official or reported. Not affiliated with Rockstar Games or Take-Two.

OtherOther

Responded412 ms15 / 22
Hat Trick Local Directory

US youth sports clubs and sports stores: registration windows, fees, tryouts and claim links.

MediaAI / LLM tooling

Responded509 ms15 / 22
0xinsider

Polymarket sports and esports data: wallet grades on settled P&L, large trades, markets.

Finance & CryptoPayments & trading

Responded520 ms15 / 22
Disremembered

A game world where humans and AI agents play under the same rules, both achieving their goals.

OtherOther

Responded525 ms15 / 22
RoTerminal

Live data on every Roblox game: players now, history, rising games, trends and studios.

OtherOther

Outdated check554 ms15 / 22
GameFork MCP

Publish, fork, improve browser games. No-auth reads; OAuth to post. Wheel: verified ops knowledge.

OtherOther

Responded581 ms15 / 22
AINSOF

Human-made production music for sync. Search by brief or reference, preview, and score to picture.

MediaData access / search

Responded588 ms15 / 22
Kineticist

Pinball news, games and editions, designers, places to play and the Hype Index from Kineticist.

MediaData access / search

Responded666 ms15 / 22
Vice City Mission: GTA 6

Free, unofficial GTA 6 server: release info, news, music, map pins, real-world landmarks, checklist

MediaData access / search

Responded750 ms15 / 22
CHRP EPI Authority

Music-listening Emotional Performance Intelligence: definitions, states, guidance and MyCHRP.

MediaCode & DevOps

Responded762 ms15 / 22
RallyIQ

Tennis game plans, scouting reports and match breakdowns from shot-by-shot charted matches.

OtherOther

Responded786 ms15 / 22
Sapiens Sintéticos

Operate your Sapiens Sintéticos AI studio: generate image, article, voice, music and video.

MediaAI / LLM tooling

Responded797 ms15 / 22
LayUp Sports Booking

Search bookable London courts, pitches, lanes and pickup games across every major UK provider.

LegalCode & DevOps

Responded810 ms15 / 22
BoxTier Basketball Receipt

Create a BoxTier-style PNG receipt from user-provided basketball game results.

MediaCode & DevOps

Responded854 ms15 / 22
Gameshot

Read Gameshot game news: latest, search, hot stories, daily, weekly, and monthly.

Developer ToolsCode & DevOps

Responded1417 ms15 / 22

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