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
GraphMake

Turn data into infographics (PNG/SVG): 90+ templates, or KPI cards, charts, timelines and maps.

OtherOther

Outdated check129 ms13 / 22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Outdated check129 ms13 / 22
NOLA Mechanic — book mobile mechanic in New Orleans

Book mobile mechanic in New Orleans, LA: prices, ZIP coverage, free callback.

OtherOther

Outdated check130 ms13 / 22
goblingains

Conditioning workouts from a coached library: suggest, vary or invent one for your kit and time.

OtherOther

Outdated check130 ms13 / 22
AR Mobile Mechanic — book mobile mechanic in Little Rock

Book mobile mechanic in Little Rock, AR: prices, ZIP coverage, free callback.

OtherOther

Outdated check130 ms13 / 22
FIDE Laws of Chess

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

OtherOther

Responded131 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Outdated check131 ms13 / 22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Outdated check131 ms13 / 22
Calculate Pool

Swimming pool math: volume in gallons, chemical doses, pump flow and heater BTU for any pool.

OtherOther

Outdated check131 ms13 / 22
Austin Volts — book electrician in Austin

Book electrician in Austin, TX: prices, service area by ZIP, free callback from a local pro.

OtherOther

Outdated check131 ms13 / 22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Outdated check132 ms13 / 22
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
Bandmixr

AI mixing and mastering in the chat: check a song, mix your stems, change the mix in plain words.

OtherOther

Outdated check133 ms13 / 22
br.com.scrypta/compraracoes

Catálogo de 130 produtos em 7 categorias e 4 planos — servido via Scrypta.

OtherOther

Outdated check133 ms13 / 22
aboard

Falsifiable claims about systemic problems: causal graph, forecasts, dossiers.

OtherOther

Outdated check133 ms13 / 22
UN Charter 1945

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

OtherOther

Responded134 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
BD5D BrainDrops archive

Read-only archive of early BrainDrops releases, artists, holdings and editorial research.

OtherOther

Outdated check134 ms13 / 22
Lexington Radon Pros — book radon mitigation in Lexington

Book radon mitigation in Lexington, KY: prices, service area by ZIP, free callback from a local pro.

OtherOther

Outdated check135 ms13 / 22
PepEvolution Peptide Sources

Find where to buy peptides from vetted, COA-tested vendors and check if a peptide vendor is legit.

OtherOther

Outdated check136 ms13 / 22
OrbitStudio

Find craters, mountains and landing sites on the Moon, Mars and more to 3D print in OrbitStudio.

OtherOther

Outdated check136 ms13 / 22
CRE Capital: capital stack calculator

CRE capital stack calculator: blended cost, DSCR, IRRs, and what each layer costs.

OtherOther

Outdated check136 ms13 / 22

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