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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5073 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
Ultra Billiard Pool

Eight-ball pool in the browser: table state, shot physics, rules and live match data.

OtherOther

Responded76 ms12 / 22
FlightAware MCP

Live flight status and scheduled-route search via the official FlightAware AeroAPI.

TravelData access / search

Responded78 ms12 / 22
YouTube MCP

YouTube search: find videos, fetch details and comments, pull full transcripts.

MediaData access / search

Responded81 ms12 / 22
LIGHTS OUT WORKS Capability Search

Evidence-labeled Method search for AI Agents; optional contributor and Gateway discovery.

Developer ToolsCode & DevOps

Responded83 ms12 / 22
Airbnb MCP

Airbnb stays worldwide: search by place, dates, guests with total prices and links; listing details.

TravelData access / search

Responded83 ms12 / 22
co.heyspark.mcp/server

Search and discover local businesses. 30+ categories with verified contact info, hours, and reviews.

Developer ToolsData access / search

Responded85 ms12 / 22
Booking MCP

Experimental Booking.com hotel search: nightly price, rating, stars and booking link.

TravelData access / search

Responded86 ms12 / 22
VailVacay Directory

Search 355+ curated Vail Valley, Colorado restaurants, hotels, activities, shops and services.

TravelData access / search

Responded87 ms12 / 22
aicoolies

Search and read the aicoolies catalog of AI and developer tools via a remote MCP knowledge graph.

Developer ToolsCode & DevOps

Responded89 ms12 / 22
switch402

Markdown scrape, site map, page metadata, screenshots, web search and PDF to text. Pay per call

OtherData access / search

Responded92 ms12 / 22
Google Flights MCP

Live Google Flights fares: search routes, discover cheap deals from an origin.

TravelData access / search

Responded92 ms12 / 22
Amazon MCP

Amazon search in 22 country stores, cross-store price comparison, one product's offers, all in PLN.

OtherData access / search

Responded92 ms12 / 22
Agent Checkout

AI shopping gateway for product search, inventory, carts, and merchant-hosted checkout.

Finance & CryptoPayments & trading

Responded93 ms12 / 22
Guestit

Search, price and compare Guestit's managed stays in Sweden. Continue booking on guestit.se.

Developer ToolsCode & DevOps

Responded95 ms12 / 22
MusicAtlas

Search, analyze, and discover commercially released music using sonic intelligence.

MediaData access / search

Responded96 ms12 / 22
PawLine Pet Guides

Search 180+ free PawLine pet care guides and run pet care calculators.

OtherData access / search

Responded98 ms12 / 22
HostedMCP Directory

Search MCP servers and agent skills, read their checks, and get install config for your client.

Developer ToolsData access / search

Responded98 ms12 / 22
HTR Bamboo Product & Inquiry Assistant

Search bamboo products and guides, estimate panel loads, and prepare reviewable RFQs.

Developer ToolsData access / search

Responded98 ms12 / 22
FCC License Search

Search FCC radio licenses by company, call sign, or FRN; monitor status changes and snapshots.

MediaData access / search

Responded98 ms12 / 22
BAM Kaarsen catalog

Search and browse the BAM Kaarsen candle catalog and white-label offering. Read-only, no auth.

OtherData access / search

Responded99 ms12 / 22
Matrice del Destino

Italian destiny-matrix calculators and guides: list, search, and analyze public pages.

OtherData access / search

Responded100 ms12 / 22
Bijack Loadboard

Search active public freight loads and loadboard halls on Bijack.

OtherData access / search

Responded100 ms12 / 22
Grant Search

Search U.S. federal grants and EU funding topics; monitor changes and download snapshots.

GovernmentData access / search

Responded100 ms12 / 22
lt.namiko/mcp

Search NAMIKO fermented drinks products and get product details via AI agents.

Developer ToolsData access / search

Responded101 ms12 / 22

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