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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4930 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
io.github.newspacemarket-com/mrd

Spacecraft component specs from vendor datasheets: search, digests, facts, gaps, budgets, bus design

Developer ToolsCode & DevOps

Responded205 ms14 / 22
APKCube

Search Android apps, check APK signing and scans, and get verified APK download links.

OtherData access / search

Responded207 ms14 / 22
OpenSwissData

Swiss customs tariff (TARES), FINMA register, NOGA/NACE/ISIC codes. 4 free tools + search trial.

Developer ToolsCode & DevOps

Outdated check207 ms14 / 22
SocialSeal

Measure how findable a brand is in TikTok, Instagram, YouTube and AI search, and what to post next.

MediaData access / search

Outdated check207 ms14 / 22
Near Fine

Search booksellers worldwide for any book, new or used, and set alerts for copies not listed yet.

OtherData access / search

Responded209 ms14 / 22
Site SEO & AI Crawler Audit

Check public pages for SEO tags, AI crawler rules, AI citation signals and landing page conversion.

Marketing & SalesBrowser & web scraping

Outdated check210 ms14 / 22
Bloomerang MCP by usefulapi

Search Bloomerang constituents and donations; log interactions, notes and tasks.

ProductivityData access / search

Responded211 ms14 / 22
Nomad Stays

Search remote-work accommodations worldwide; Trusted Stay Partners can manage their own listings.

Developer ToolsCode & DevOps

Outdated check211 ms14 / 22
eCFR.io Federal Regulations

Search and read US federal regulations with legal and inline citations linking to ecfr.io.

LegalKnowledge & memory

Outdated check211 ms14 / 22
Aureum Technology Website

German IT service provider: services, prices, contact and website search.

OtherData access / search

Outdated check212 ms14 / 22
Ni Biashara Diaspora Directory

Free read-only search of 2,000+ African and Caribbean diaspora businesses in the US and Canada.

OtherData access / search

Responded213 ms14 / 22
Ampworth documents

Search and read UK guides on solar PV, heat pumps, batteries and MCS certification.

OtherFile & docs

Responded213 ms14 / 22
Dipper

Web search and page fetch for AI agents. Results come from a shared cache; cached calls cost less.

Developer ToolsData access / search

Responded214 ms14 / 22
LockTrip Hotels

Search hotels worldwide, compare rooms, prices and cancellation terms, then get a link to book.

TravelData access / search

Responded215 ms14 / 22
com.giftroam/giftroam

Send real gifts to 190+ countries: search, check delivery, get a secure checkout link.

Finance & CryptoPayments & trading

Responded217 ms14 / 22
WhatAreYouBuilding.AI

Search indie products and their builders by category, country and funding stage. No key to read.

OtherData access / search

Responded217 ms14 / 22
FunkyJobs Stellensuche

Search current job listings in Switzerland on funkyjobs.ch and fetch a single listing by id.

OtherData access / search

Responded221 ms14 / 22
Business Site Audit

Audit a business website for observed crawl and indexing issues with source-linked fixes.

Developer ToolsBrowser & web scraping

Outdated check221 ms14 / 22
IsraBase

Search Israeli companies, nonprofits and partnerships from data.gov.il. Read-only, no key.

OtherData access / search

Responded224 ms14 / 22
Awesome Indie

Search indie product launches, rankings and makers, and submit your own, on Awesome Indie.

Developer ToolsData access / search

Responded225 ms14 / 22
Perkusai (US)

AI shopping search: real, in-stock US and Amazon products with prices, ratings and buy links.

Finance & CryptoData access / search

Responded226 ms14 / 22
GoVisit Tools

Search GoVisit and read published travel destinations, places, and documentation.

TravelFile & docs

Responded226 ms14 / 22
NodajiMarket

Korean handcrafted goods by named artists: search, artists, duty-included quotes, checkout links.

Finance & CryptoPayments & trading

Outdated check228 ms14 / 22
SEO Audit

Find what to fix on a public website, for search engines and for AI answers.

Marketing & SalesData access / search

Outdated check228 ms14 / 22

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