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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41469 servers

Ordered by checks passed
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
OwlGate

TapeOut rigs: fair prices and buys on BNB Chain; list, bid, fill, cancel vouchers on X Layer.

OtherOther

Responded326 ms15 / 22
io.github.MarvinRey7879/framefetch

Any social-video URL → transcript, metadata, frames, OCR, summary, search, Q&A. MCP server + x402.

MediaCode & DevOps

Responded327 ms15 / 22
MCP security checks — WARDEN and HISTOR

Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.

Developer ToolsData access / search

Outdated check327 ms15 / 22
DogsLife

Puppy potty, sleep, walk, feeding, adult-weight and dog-age calculators, in 23 languages.

OtherOther

Outdated check328 ms15 / 22
Twice Commerce MCP by usefulapi

Read orders, customers, catalog, stock and availability; add order comments in Twice Commerce.

Finance & CryptoPayments & trading

Responded329 ms15 / 22
Sakari MCP by usefulapi

Manage Sakari SMS contacts, conversations, templates and campaigns, and send texts.

Marketing & SalesCommunication & messaging

Responded329 ms15 / 22
NAIF Gravity

Free MCP/API diagnostics. Micro Tools V2: free preview, $1 JSON check, $2 API shape, $3 normalize.

Developer ToolsCode & DevOps

Outdated check330 ms15 / 22
TraderSpy

AI crypto signals, whale positions, 19 technical indicators, derivatives, screener and backtests

Finance & CryptoPayments & trading

Outdated check330 ms15 / 22
Buy Me a Coffee MCP by usefulapi

Read members, one-time supporters and Extras purchases in Buy Me a Coffee.

OtherOther

Responded331 ms15 / 22
Orb Studio news radars

News radars with AI anchors, market and network sensors, a daily violin piece composed from them

Developer ToolsCode & DevOps

Outdated check331 ms15 / 22
getcheapgames

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

OtherOther

Outdated check331 ms15 / 22
Delfi PMS MCP by usefulapi

Read properties, leases, payments, invoices, expenses and maintenance requests in Delfi PMS.

Finance & CryptoPayments & trading

Responded332 ms15 / 22
Autoza UK

UK used cars: road tax (VED), ULEZ charges, MOT dates, DVSA reliability, live dealer stock.

Finance & CryptoCode & DevOps

Outdated check332 ms15 / 22
Green Gooding

Read-only catalog for Green Gooding — NYC peer-to-peer rental marketplace.

Developer ToolsCode & DevOps

Outdated check332 ms15 / 22
Health Record Rights Index

Health record rights: 198 countries scored 0 to 100 with sources; the 50 states and DC; real cases.

Developer ToolsCode & DevOps

Outdated check332 ms15 / 22
Humanuscrit — HAPP

Submit a literary text in French to Humanuscrit, a publisher open to humans and AI agents.

Developer ToolsCode & DevOps

Outdated check332 ms15 / 22
pdata Prediction Markets

Polymarket, Kalshi + 6 more prediction markets: live odds, volume, movers. Read-only, no auth.

Developer ToolsCode & DevOps

Responded333 ms15 / 22
WillItPlug

Product tools for travel plug checks, packing lists and country power standards. Public, read-only.

TravelData access / search

Responded334 ms15 / 22
WRDO

Local businesses, menus and price lists in Cape Town and the Western Cape; start a request in WRDO.

OtherOther

Responded335 ms15 / 22
Sorted Travel Docs

Search Sorted Travel developer docs for MCP, API, SDK, and auth questions.

TravelData access / search

Responded335 ms15 / 22
Ravenpost

Schedule & publish social media posts to Instagram, TikTok, X, LinkedIn, YouTube, Pinterest & more.

Marketing & SalesData access / search

Responded335 ms15 / 22
StatusCast MCP by usefulapi

Read page status, components, uptime, incidents and content templates in StatusCast.

Developer ToolsMonitoring & observability

Responded335 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

Outdated check336 ms15 / 22
Bill.pt MCP by usefulapi

List invoices, contacts, items and stock, and create contacts in Bill.pt.

Finance & CryptoPayments & trading

Responded337 ms15 / 22

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