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
BGB (Germany)

German Civil Code (BGB) as executable rules: periods, deadlines and more, answered with grounds

OtherOther

Responded123 ms13 / 22
Loud Nearby

Metal, rock, punk and goth concerts in Poland: a band's upcoming gigs or what plays in a city.

OtherOther

Outdated check123 ms13 / 22
Pikes Peak Trip Planner

Plan a Pikes Peak day: timed-entry permit, gate hours, live road status, costs, hike times, facts.

OtherOther

Outdated check123 ms13 / 22
KC Plumb — book plumber in Kansas City

Book plumber in Kansas City, MO: prices, service area by ZIP, free callback from a local pro.

OtherOther

Outdated check123 ms13 / 22
KiedyKoncert.pl

Who is playing in your city and when? Upcoming concerts in Poland. Read-only, no account.

OtherOther

Outdated check124 ms13 / 22
Citexact : jurisprudence administrative française

Jurisprudence administrative française vérifiée (CE, CAA, TA), citée mot pour mot, liens Légifrance.

OtherOther

Outdated check124 ms13 / 22
KC Windshield — book windshield replacement in Kansas City

Book windshield replacement in Kansas City, MO: prices, ZIP coverage, free callback.

OtherOther

Outdated check124 ms13 / 22
GariDeal

Used car market prices in Spain: what a model and year is worth, by province, and cars for sale.

OtherOther

Outdated check124 ms13 / 22
El Paso Air — book AC repair in El Paso

Book AC repair in El Paso, TX: prices, service area by ZIP, free callback from a local pro.

OtherOther

Outdated check124 ms13 / 22
Villiers Charter

Instant private jet charter price estimates and confirmed live quotes, worldwide.

OtherOther

Outdated check125 ms13 / 22
Standard Titanium Quotations

Request titanium quotations and check enquiry status with Standard Titanium.

OtherOther

Outdated check126 ms13 / 22
Conduit.loans: CMBS conduit loan sizer

CMBS conduit loan sizer and 2026 underwriting stats (DSCR, LTV, debt yield) from SEC filings.

OtherOther

Outdated check126 ms13 / 22
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
Pouncio: Vinted resale prices

Resale prices, flips and red flags for second-hand items, from real Vinted sales.

OtherOther

Outdated check126 ms13 / 22
Omaha Sprinkle — book sprinkler repair in Omaha

Book sprinkler repair in Omaha, NE: prices, service area by ZIP, free callback from a local pro.

OtherOther

Outdated check126 ms13 / 22
Peptides Academy

Evidence-first peptide research: summaries and comparisons from cited dossiers, linked to courses.

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
Port Scanner API

Scan the open TCP ports of your own public IP. Fast (32) or deep (65535). No key, no signup.

OtherOther

Outdated check127 ms13 / 22
Cesure

Write, edit, transpose and play guitar tabs and staff notation in Cesure.

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

Responded129 ms13 / 22

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