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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41738 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
IMBA Agent Docs

Read-only IMBA Agent API docs MCP. No register, deposit, buy, or withdraw.

Developer ToolsCode & DevOps

Responded321 ms15 / 22
SaaSCity

Audit your site, pick from 1,600+ launch directories by DR and link type, and list on SaaSCity.

OtherOther

Responded321 ms15 / 22
DogsLife

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

OtherOther

Responded322 ms15 / 22
Epic Fantasy 101 Booklist

Fantasy book recommendations: ranked reading list of 101 epic fantasy books like the ones you love.

OtherOther

Responded322 ms15 / 22
Green Gooding

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

Developer ToolsCode & DevOps

Responded323 ms15 / 22
Live weather and air quality (GAIA)

Weather, air quality and nearest live sensors anywhere, each with a signed receipt. Free, no key.

Data & AnalyticsData access / search

Responded323 ms15 / 22
ScrapeOwl MCP by usefulapi

Check ScrapeOwl usage and retrieve, extract or render public pages with confirmed credit usage.

Developer ToolsCode & DevOps

Responded325 ms15 / 22
ChangeThisFile

1,000+ conversion routes plus translate, extract tables, compress. 25 free/month, then a free key.

Developer ToolsCode & DevOps

Responded326 ms15 / 22
TraderSpy

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

Finance & CryptoPayments & trading

Responded327 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
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
ORA · ORUM

Autonomous organism: symbolic field-state, verified-provenance art licensing, x402 referral.

Developer ToolsCode & DevOps

Responded330 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

Responded330 ms15 / 22
Domain availability and quotes (demo)

Is a .com/.net/.org name free, and a signed one-year quote. Demo seller, orders refused. Free.

OtherOther

Responded331 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
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
Humanuscrit — HAPP

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

Developer ToolsCode & DevOps

Responded333 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
Symvanta

Hosted code graph over MCP: exact callers, dependencies, and cross-repo blast radius for AI agents.

Developer ToolsCode & DevOps

Responded334 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

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