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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7641 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
Points or Cash

Use points or pay cash? Cents-per-point verdicts, transfer partners, award prices, lounges.

OtherOther

Responded465 ms14 / 22
agentbuilt

Free AI-readiness audit of any URL: AI crawler rules, JS-free text, JSON-LD, llms.txt. Tool catalog.

OtherBrowser & web scraping

Outdated check465 ms14 / 22
Pieter-Jan Scheir

Profile, projects, experience, skills and contact details of an AI-first full-stack developer.

OtherOther

Responded466 ms14 / 22
Siteiz

Check which AI crawlers a site allows and see pages the way AI crawlers do. Free, read-only.

OtherBrowser & web scraping

Responded466 ms14 / 22
Flathead Trades

Builders, tradespeople and home services in Montana's Flathead Valley, with phones and websites.

OtherOther

Responded466 ms14 / 22
MERA Robotics

Humanoid robot rental with operators for events across Europe: event plan, robots, proof, inquiries.

OtherOther

Responded467 ms14 / 22
Imóveis à venda em São Paulo · itbisp.com

Homes for sale in São Paulo: 330+ agencies deduplicated, price vs comparables, real ITBI sales.

OtherOther

Responded467 ms14 / 22
The AI Record

Cited, verbatim passages on how organizations use AI, with source, grade and check status.

OtherOther

Responded468 ms14 / 22
pcprice.watch used PC part prices

Real eBay sold prices for used GPUs, CPUs, RAM and more in 7 markets, and eBay listing price checks.

OtherOther

Responded469 ms14 / 22
AITraining.jobs

Search open AI training jobs from 17 platforms and compare advertised hourly pay by kind of work.

OtherData access / search

Responded469 ms14 / 22
JoinTheDeal

Search Southern California home deals and group buys. Read-only, no login.

OtherData access / search

Responded469 ms14 / 22
Calculiva Cut Planner

Plans flooring, trim and wallpaper orders from computed cut layouts. Free, read-only, no account.

OtherOther

Responded469 ms14 / 22
Retirement Wealth Data

Selected figures in Australian retirement rules, each checked against its official source.

OtherOther

Responded469 ms14 / 22
Versyka

Find retiring AI models and outdated API SDKs in your code, with dates, replacements and guides.

OtherOther

Responded470 ms14 / 22
TailThemes

Search Tailwind CSS and React themes, read their tokens and source files, and get download URLs.

OtherData access / search

Responded470 ms14 / 22
Hilo Studio

Madrid studio for branding and interactive 3D web: services, prices, work, Lab demos, quotes.

OtherOther

Responded470 ms14 / 22
Entyrax

PC hardware decision engine for Brazil (pt-BR): compatibility, GPU recommendations, build analysis.

OtherOther

Responded470 ms14 / 22
DataSnack

Seven-day forecasts of real-world numbers, linked and graded daily; sign-in adds Excel exports.

OtherFile & docs

Responded471 ms14 / 22
PE or Not?

Is a US dentist, vet or eye doctor private-equity backed? Owner, PE backers and sources for each.

OtherOther

Responded473 ms14 / 22
Penwright — writing-craft library, guide metadata, and magazine

Read-only access to Penwright's writing-craft book library, grounded guide metadata (card-level...

OtherOther

Responded473 ms14 / 22
saved.rsvp

Restaurant picks from food creators you trust: ranked guides, reviews and places near you.

OtherOther

Responded475 ms14 / 22
WikiBrand

Logo, colors, typefaces, tone of voice and CSS theme of any brand, read from its own website.

OtherOther

Responded475 ms14 / 22
DERATE — truck fault codes

Heavy-duty truck SPN/FMI and OBD fault codes: meaning, safe-to-drive verdict, parts and recalls.

OtherOther

Responded475 ms14 / 22
PensionHunter

Cross-border pension facts with sources and dates, and written answers from pension authorities.

OtherOther

Responded475 ms14 / 22

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