MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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.

Connect your agent

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
CardVolume

Verified trading card sales and prices by grade: Pokemon, Magic, Yu-Gi-Oh!, sports, Harry Potter.

Finance & CryptoData access / search

Outdated check930 ms12 / 22
ArcadeIndex

Find free browser games re-checked playable within 8 days, by genre, mood, age rating and players.

OtherOther

Outdated check959 ms12 / 22
TickerMint

Trading card prices: daily TCGplayer market, history since 2024, set totals, movers. 6 games.

Finance & CryptoPayments & trading

Outdated check976 ms12 / 22
Abyssfall: Operation Sunken Crown

Official Abyssfall game info, merch catalog, newsletter double opt-in, and merch reservation tools.

Marketing & SalesData access / search

Outdated check979 ms12 / 22
LootCodes

Search LootCodes game keys, gift cards and top-ups, compare prices and prepare a cart link.

OtherData access / search

Outdated check1033 ms12 / 22
DTMFRAME

Japan music-production prices: plugins, DAWs, audio gear. Shop comparison, sales and end dates.

MediaAI / LLM tooling

Outdated check1062 ms12 / 22
Co-Op Now

Find co-op games by party size, local/online, platform and crossplay.

Developer ToolsCode & DevOps

Outdated check1217 ms12 / 22
The Curator

Search and explore taste-led finds in clothing, audio, designed objects and music.

MediaData access / search

Outdated check1280 ms12 / 22
Dinogame

Search 101 free browser games + 1,000 Chrome Dino & gaming guides; returns dinogame.gg play links.

MediaData access / search

Outdated check1375 ms12 / 22
FFT Companion

Final Fantasy Tactics game data across the PSX, War of the Lions and Ivalice Chronicles releases

OtherOther

Responded2068 ms12 / 22
TubeSaku Creator Insights

Japanese YouTube research: stream schedules, live broadcasts, VTuber debuts, game and cover trends

MediaAI / LLM tooling

Outdated check2668 ms12 / 22
Grey Tabby Golf

Golf group software: games, scoring, features, pricing, demos, and a 30-day free trial.

Marketing & SalesData access / search

Outdated check84 ms12 / 22
Outdated check117 ms12 / 22
Appside Docs and App Catalog

Game web store docs plus a free app catalog: agents list, verify and search apps and games.

OtherData access / search

Responded167 ms12 / 22
com.tcgmcp/tcgmcp

Live TCG card and decklist prices for AI assistants. 22+ games, no account, ready-to-buy links.

OtherOther

Outdated check687 ms12 / 22
Erik Bethke's Blog & Knowledge Graph

Search, read, and traverse 3,800+ posts on AI, energy, policy, games, and investing as a graph.

OtherData access / search

Outdated check12830 ms12 / 22
NOSTOS

Retro games and vintage apparel in Duluth, GA. Live catalog, prices, trade-in offers, policies.

OtherOther

Outdated check20671 ms12 / 22
Playtable

Make up any game and play it in chat: a fair table that deals, hides cards and rolls dice.

OtherOther

Outdated check54 ms11 / 22
live.catchaset/catchaset

Live-music shows in Austin & Chicago matched to your taste (pass artists you like).

MediaAI / LLM tooling

Outdated check58 ms11 / 22
Spritefetch

Search and download free CC0 2D sprite sheets and tilesets for games.

OtherData access / search

Outdated check62 ms11 / 22
Agent Nil — Act 0

Talk to Agent Nil before the Chain opens. Daily challenges. No wallets, no tokens, only the game.

Finance & CryptoPayments & trading

Outdated check77 ms11 / 22
Spocal Sports MCP

Structured Japan sports schedules, fixtures, broadcasts, and live updates for AI agents.

MediaAI / LLM tooling

Outdated check85 ms11 / 22
Better Game: Agents

A hockey prediction game for AI agents: pick who has the better game before each Oilers game.

OtherOther

Outdated check91 ms11 / 22
MusicAtlas

Search, analyze, and discover commercially released music using sonic intelligence.

MediaData access / search

Outdated check96 ms11 / 22

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