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

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7740 servers

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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
DevShelf.io

Hand-reviewed catalog of dev tools and resources, with pricing and alternatives.

OtherOther

Responded419 ms13 / 22
НамериМиДом.bg

Search homes for sale and rent in Bulgaria; get price stats and alerts for new matches.

OtherData access / search

Responded419 ms13 / 22
Pavels Web Solutions

Read-only access to pavels.dev: services, case studies, articles and team of a web dev studio.

OtherOther

Responded421 ms13 / 22
Lowvyn

Verify Canadian deals, find the same product cheaper across .ca retailers, track CAD price history.

OtherOther

Responded422 ms13 / 22
Hydrogen Studies

Search, compare and summarize 2,200+ published studies on molecular hydrogen (H2) and health.

OtherData access / search

Responded422 ms13 / 22
Nationale Vacaturebank Jobs

Search and retrieve job postings on Nationale Vacaturebank, the largest Dutch jobs site (read-only).

OtherData access / search

Responded423 ms13 / 22
PortfolioFit

Check normalized portfolios against mandates and calculate allocation constraints.

OtherOther

Responded423 ms13 / 22
Morse

Exchange rates, where Morse can send money, and indicative transfer quotes. No login needed.

OtherOther

Responded423 ms13 / 22
Octo Thinks Decision Presets

Reviewed decision matrices and buying guides: ranked options and weighted criteria in 6 languages

OtherOther

Responded425 ms13 / 22
Feed Preflight

Check product CSV structure for up to 20 records; free preview and purchase availability.

OtherFile & docs

Responded427 ms13 / 22
GLP Winner

Compare US GLP-1 telehealth prices, coupons, reviews, and compounding pharmacies.

OtherOther

Responded429 ms13 / 22
Kliky

Consulte informações sobre o produto, planos e páginas públicas do Kliky.

OtherOther

Responded431 ms13 / 22
Kliqo AI

Free AI visibility checks, then see if ChatGPT and Google AI name you or your competitors instead.

OtherAI / LLM tooling

Responded431 ms13 / 22
Casa Kimball

Plan a stay at an oceanfront villa in Cabrera, Dominican Republic: open dates, exact quotes, holds.

OtherOther

Responded433 ms13 / 22
Domain Health

Domain checks: SPF, DKIM, DMARC, BIMI, MTA-STS, SSL/TLS and HTTP security headers.

OtherOther

Responded434 ms13 / 22
AutoMessage

Find a texting assistant for your goals in AutoMessage's public catalog.

OtherCommunication & messaging

Responded434 ms13 / 22
ai.masnavi/masnavi

Rumi's complete Masnavi (25,635 beyts) — search, quote, verify and explain. Free, no auth.

OtherData access / search

Responded434 ms13 / 22
AutoPrint

Print existing artwork on custom wall art, apparel, and gifts.

OtherOther

Responded435 ms13 / 22
PromptFax

Send a one-off fax from inside ChatGPT or Claude. Pay-per-use, $2-$4.50 per delivered fax.

OtherAI / LLM tooling

Responded436 ms13 / 22
Cintra Supply Quote Desk

Get quotes in minutes and order wholesale industrial and operational supplies from a US distributor.

OtherOther

Responded436 ms13 / 22
Site Check

Public website health scan, AI-crawler and structured-data readiness, and a local presence score.

OtherBrowser & web scraping

Responded439 ms13 / 22
Intakra Buying Signals and Workspace

Review supplied buying evidence or OAuth-linked accounts, opportunities and workspace settings.

OtherOther

Responded439 ms13 / 22
Moving Polygons

Create, edit and publish animated historical maps in your Moving Polygons account.

OtherOther

Responded441 ms13 / 22
ng.ranked/ranked

Read-only tools over Ranked, a Nigerian business directory with dated regulator register snapshots

OtherOther

Responded442 ms13 / 22

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