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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5257 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
Roadcut — European road trips

Checked European road trips day by day, EV charging on the way, pass seasons and driving rules.

OtherOther

Outdated check126 ms13 / 22
Ripedeps

Deterministic package.json upgrade plans: age gate, aligned peers, reasons per change. No AI.

OtherOther

Outdated check126 ms13 / 22
Pad Count: mobile home park loan sizer

Which loans fit a mobile home park: agency sizer, lot-rent valuation, program rules.

OtherOther

Outdated check127 ms13 / 22
Vegas Pool Guy — book pool service in Las Vegas

Book pool service in Las Vegas, NV: prices, service area by ZIP, free callback from a local pro.

OtherOther

Outdated check127 ms13 / 22
Taxis Fabbrimone

Taxi in Waterloo, Belgium: business info, ride price quotes and ride booking requests.

OtherOther

Outdated check127 ms13 / 22
Craftery Developer Tools

Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing.

OtherOther

Outdated check128 ms13 / 22
UNIDROIT Principles 2016

UNIDROIT Principles 2016 as executable rules: closed questions answered with grounds and source text

OtherOther

Outdated check129 ms13 / 22
OI AI Adoption

Advice on bringing AI into work processes, with sourced effects, risks and rules for SI, HR, DE, AT

OtherOther

Responded131 ms13 / 22
TypedPull

Return only the schema fields you name from one public web page. No raw HTML.

OtherOther

Responded131 ms13 / 22
FIDE Laws of Chess

FIDE Laws of Chess (2023) as an executable model: arbiter cases, answers with rules and judgments

OtherOther

Outdated check131 ms13 / 22
FundBiz Lender Index

UK specialty business finance lender terms and rates from the FundBiz Lender Index. Read-only.

OtherOther

Outdated check131 ms13 / 22
United Kingdom Salary Calculator

United Kingdom 2026: net pay itemised, gross for target net, employer cost, vs NL.

OtherOther

Outdated check131 ms13 / 22
PESEL/NIP/REGON Validator

Validates Polish PESEL, NIP, and REGON checksums; PESEL also decodes birth date and sex.

OtherOther

Responded132 ms13 / 22
CityBotMagic

US local businesses, services and source-cited prices, city by city. Free, no API key.

OtherOther

Responded132 ms13 / 22
Social Data API

One API key for TikTok, X, Instagram and Reddit data. TikTok and X are live now.

OtherOther

Outdated check132 ms13 / 22
Dinilu Canada — custom promotional products

Live prices in CAD, options and shipping quotes for custom-printed promotional products.

OtherOther

Responded133 ms13 / 22
com.fromtocargo/mcp

European road freight and moving prices: quotes, dated price index, glossary, order submission

OtherOther

Responded133 ms13 / 22
FeastFlow cooking times

Turkey and roast cooking times, thawing times and roast dinner timelines. UK and US times.

OtherOther

Outdated check133 ms13 / 22
Route 232: HUD Section 232 programs, queue and timing

HUD Section 232 program chooser, weekly ORCF queue, closing times and note rates.

OtherOther

Outdated check133 ms13 / 22
UN Charter 1945

UN Charter (1945, as amended) as an executable model with worked cases; not UN-affiliated

OtherOther

Outdated check134 ms13 / 22
LIHTC Atlas: income limits, QCT/DDA and LIHTC properties

LIHTC data: HUD income and rent limits, 2027 QCT/DDA checks, LIHTC properties, credit math.

OtherOther

Outdated check134 ms13 / 22
BocaRoss

Garages, carrossiers, contrôle technique, pare-brise et lavage auto en France : fiches et prix.

OtherOther

Outdated check134 ms13 / 22
MCPFax Feed Reader

What a source published since you last looked, from any RSS, RDF or Atom feed.

OtherOther

Responded135 ms13 / 22
MCPFax URL Intelligence

Where a link really goes, what the server says about itself, and what pages a site publishes.

OtherOther

Responded137 ms13 / 22

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