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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7612 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
Paper Plane Post

Create and send an AI-illustrated postcard anywhere in the world

OtherOther

Outdated check123 ms14 / 22
Tempe Pool Guy — book pool service in Tempe

Book pool service in Tempe, AZ: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded124 ms14 / 22
Goatcade

Real, free browser games that open in the chat: city builder, racer, horde shooter, deckbuilder.

OtherOther

Responded124 ms14 / 22
Sell My Company Data

Estimate what your company's operational data is worth to AI labs. Counts only, never content.

OtherOther

Responded125 ms14 / 22
Ripedeps

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

OtherOther

Responded126 ms14 / 22
Pouncio: Vinted resale prices

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

OtherOther

Responded126 ms14 / 22
AR Mobile Mechanic — book mobile mechanic in Little Rock

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

OtherOther

Responded126 ms14 / 22
br.com.scrypta/compraracoes

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

OtherOther

Responded126 ms14 / 22
contix herramientas

Free no-auth tools for Spain: validate IBAN, EU VAT check (VIES), Modelo 303 sums, Veri*factu dates.

OtherOther

Responded127 ms14 / 22
Omaha Hail Guy — book paintless dent repair in Omaha

Book paintless dent repair in Omaha, NE: prices, ZIP coverage, free callback.

OtherOther

Responded127 ms14 / 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

Responded127 ms14 / 22
Sanovia — medici e professionisti sanitari in Italia

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

OtherOther

Responded127 ms14 / 22
Nomok

Check name availability on 70+ platforms: domains, social networks, marketplaces.

OtherOther

Responded127 ms14 / 22
CountLink

Shared countdown timers that stay in sync on every screen — no account, any number of viewers.

OtherOther

Responded128 ms14 / 22
Corpus Car Fix — book mobile mechanic in Corpus Christi

Book mobile mechanic in Corpus Christi, TX: prices, ZIP coverage, free callback.

OtherOther

Responded128 ms14 / 22
AgentDNA by ANGELS

Company catalogs for AI agents: products, prices, availability. Search, read, or start one free.

OtherData access / search

Responded128 ms14 / 22
goblingains

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

OtherOther

Responded129 ms14 / 22
Craft Quantities: construction material calculators

Construction quantities from cited calculators, takeoffs, planners, drawings, cut plans. No prices.

OtherOther

Responded129 ms14 / 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

Responded130 ms14 / 22
Centering Lab

Measure card centering and check PSA, BGS, CGC and SGC centering ceilings and standards.

OtherOther

Responded130 ms14 / 22
Boise Car Fix — book mobile mechanic in Boise

Book mobile mechanic in Boise, ID: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded130 ms14 / 22
Nomado24 Remote Jobs

Search 13,000+ remote/hybrid jobs in Germany/EU, open a posting, get market stats. Free, no auth.

OtherData access / search

Responded131 ms14 / 22
OctoTrip Rental Cars

Free, no-login rental car search with real-time pricing.

OtherData access / search

Responded131 ms14 / 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

Responded131 ms14 / 22

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