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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436 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
Outdated check86 ms13 / 22
Outdated check87 ms13 / 22
Zelta Waist Size Check

Waist size health check (Indian cutoffs) and the waist size to stay under.

OtherOther

Outdated check89 ms13 / 22
PediBot

Children's health from published guidelines: doses, vaccines, growth charts, warning signs.

OtherOther

Outdated check110 ms13 / 22
PageProof

PDF text by page with hashes. 0.005 USDC/Base via x402. No OCR. Check /health for readiness.

Finance & CryptoPayments & trading

Outdated check111 ms13 / 22
Sanovia — medici e professionisti sanitari in Italia

Find Italian doctors and health practitioners: profile, services, prices, free booking slots.

OtherOther

Outdated check129 ms13 / 22
Her Vitals supplement index

Supplement categories for UK women by life stage, with EFSA-permitted roles. Not medical advice.

HealthcareData access / search

Outdated check143 ms13 / 22
BabyData pregnancy calculators

UK due date, ovulation, pregnancy weeks and maternity pay calculators. Not medical advice.

HealthcareData access / search

Outdated check143 ms13 / 22
Sighttrue

Measured readings on open-source dependencies: health, end-of-life, model prices, incidents.

Developer ToolsCode & DevOps

Outdated check178 ms13 / 22
com.brainonbnb/health-factor

Venus health factor of any BNB Chain account, free; liquidation stress paid, free holding 1M $BOBAI.

OtherOther

Outdated check188 ms13 / 22
Guía Extranjeros

Dated guides for foreigners in Spain: NIE, TIE, arraigo, residence, health, taxes. ES/EN/UK.

OtherOther

Outdated check189 ms13 / 22
Norric

Swedish B2B intelligence for AI agents: insolvency risk, procurement, BRF health and more.

Developer ToolsCode & DevOps

Outdated check194 ms13 / 22
mechoulam.de Cannabis Evidence Register

GRADE-rated clinical evidence on cannabis as medicine (DE/EN). Search and cite studies.

HealthcareData access / search

Outdated check195 ms13 / 22
Cosmic Chemistry

Free Vedic astrology: birth chart, dasha, Sade Sati, Saturn return, panchang, planetary hours.

OtherOther

Outdated check195 ms13 / 22
ch.swisslivingindex/swiss-living-index

Official Swiss data for all 26 cantons and 2,100 communes: tax, rent, health premiums, fuel, jobs.

Finance & CryptoPayments & trading

Outdated check205 ms13 / 22
EINI

Swiss supermarket deals at 8 chains and official 2027 health insurance premiums, from EINI.

OtherOther

Outdated check223 ms13 / 22
MX Verdict

Free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, domain health.

ProductivityCommunication & messaging

Outdated check243 ms13 / 22
Corollary — scientific AI models, tools and databases

Find open biology and chemistry AI models, bioinformatics tools and databases, and run them online.

Developer ToolsDatabase

Outdated check270 ms13 / 22
Vitalityfit Price Comparison

Cheapest offers for health products from German online shops and pharmacies, by name, PZN or EAN.

E-commerceData access / search

Outdated check278 ms13 / 22
FanLine Wire — Real-Time FanDuel Odds

Live and prematch FanDuel odds, price drops and feed health. No key, no signup.

OtherOther

Outdated check300 ms13 / 22
Vitena Directory

Search Vitena's public directory of bookable health and wellness professionals

OtherData access / search

Outdated check309 ms13 / 22
DRGSystem — German medical coding catalogs

ICD-10-GM, OPS, DRG, ZE, PEPP, DKR, SEG-4, ATC lookup for German coding, 2010-2027

HealthcareData access / search

Outdated check322 ms13 / 22
ChooseHelp Treatment Directory

Editorially independent addiction & mental-health directory — facilities, therapists, expert Q&A.

OtherOther

Outdated check332 ms13 / 22
StatsMapped Public Data

Public statistics for Ireland and the UK: housing, crime, health, economy, welfare, with caveats.

Data & AnalyticsData access / search

Outdated check336 ms13 / 22

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