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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5233 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
Ordkort

Flashcard decks with pictures and card designs for a free vocabulary site in 60 languages.

OtherOther

Responded391 ms14 / 22
HouseData

UK property data: EPC, flood risk, planning, sale prices, MEES 2030 checks and grants.

OtherOther

Outdated check394 ms14 / 22
Capxule

The context marketplace: expert guided journeys your assistant runs step by step.

OtherOther

Responded404 ms14 / 22
DaedalMap CIA World Factbook

CIA World Factbook country indicators: infrastructure, energy, demographics, economy, 2002-2026.

OtherOther

Responded424 ms14 / 22
Kevin's Coaching Brain

Coaching answers from Kevin Middleton's own writing, with the source link for each answer.

OtherOther

Responded433 ms14 / 22
DRYL Components

Blazor UI library DRYL: find components, read their exact API and tokens, validate Razor markup.

OtherOther

Responded436 ms14 / 22
Sunrise & Sunset Times

Sunrise, sunset, twilight, golden hour and moon times for any place on Earth. Free, no API key.

OtherOther

Outdated check441 ms14 / 22
TrendFlow

Google Trends data: interest over time, by region, related queries, and trending now.

OtherOther

Responded443 ms14 / 22
Upshift

Audit a site's structured data and llms.txt, match a trade to a template, and quote real prices.

OtherOther

Responded445 ms14 / 22
Slop Patterns

Checks UI code for AI-default design patterns and gives the fix. By Precious Studio.

OtherOther

Responded445 ms14 / 22
Groundtruth — Ask Real Humans

Human-in-the-loop user research: ask real people what the web can't answer, get verbatim replies

OtherOther

Responded445 ms14 / 22
Soundcheck Live Event Quotes

Price any live event: parties, weddings, conferences, concerts. Instant estimates, no login.

OtherOther

Outdated check467 ms14 / 22
Wash Bodega Service Discovery

Read-only bilingual Wash Bodega services, pricing, hours, pickup policy, and ordering handoff.

OtherOther

Responded475 ms14 / 22
Renderball

Designed, animated, editable presentations your AI writes on Renderball. No account needed to try.

OtherOther

Responded480 ms14 / 22
Macfax

Identify any Apple serial and read its device record, plus used-Mac prices, listings and checks.

OtherOther

Responded495 ms14 / 22
DMV Transit

Unofficial DC, Maryland and Virginia transit: trips, Metro, buses, rail, fares and alerts.

OtherOther

Responded508 ms14 / 22
Gridzen Verification

Country verification research, integration planning and synthetic tests. No live identity checks.

OtherOther

Responded509 ms14 / 22
costheta

Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.

OtherOther

Responded510 ms14 / 22
Check Digit Validator

Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit

OtherOther

Responded511 ms14 / 22
Chessigma

Chess opening guides and names, FEN and PGN checks, the daily chess puzzle and Elo estimates.

OtherOther

Responded511 ms14 / 22
Finance Ops — Report Review — Northgate Advisors (f72b2bd5)

Free to compete: testnet faucet funds everything. 12 synthetic report exception cases: duplicate…

OtherOther

Responded520 ms14 / 22
guide.salesleader/salesleader-desk

Read-only Sales Leader Guide desk: writers roster and magazine pieces. Public, no authentication.

OtherOther

Outdated check520 ms14 / 22
guide.facilitiesleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check520 ms14 / 22
guide.strengthtraining/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Outdated check521 ms14 / 22

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