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.

Connect your agent

40673 servers

Ordered by checks passed
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
IPO Radar — Indian IPO GMP

Live Indian IPO GMP, subscription status, upcoming IPOs and GMP-vs-listing accuracy.

Developer ToolsPayments & trading

Responded95 ms15 / 22
OPC UA Modeler

OPC UA companion spec types, namespace dependencies, and engineering units for AI agents

Developer ToolsCode & DevOps

Responded96 ms15 / 22
Rising Shores Singapore

Sea-level rise in Singapore: when a place or address floods, areas and people affected, IPCC AR6.

Developer ToolsCode & DevOps

Responded96 ms15 / 22
Formquote

Published prices and licence fit for email verification, sound effect packs and font licences.

Developer ToolsCommunication & messaging

Responded96 ms15 / 22
Shortform Kit

Transcribe, read and download public Reels, TikToks and YouTube videos, plus sourced creator data

MediaAI / LLM tooling

Responded96 ms15 / 22
Pentest requests, security headers checker, guides

Request a penetration test, grade a website's HTTP security headers, and search pentest guides.

SecurityData access / search

Responded96 ms15 / 22
Doichain

Proof of existence, names and chain data of the Doichain blockchain for AI agents

Finance & CryptoPayments & trading

Responded97 ms15 / 22
HornLib — Interactive French Horn F/Bb Double Horn Fingering & Harmonics Engine

Look up French Horn F/Bb double horn valve fingerings, trigger combinations & partials.

Developer ToolsData access / search

Responded97 ms15 / 22
saagarpatel.dev Portfolio

Agent-native MCP server over the public saagarpatel.dev corpus. Read-only, stateless.

Developer ToolsCode & DevOps

Responded98 ms15 / 22
The Agent Lounge

A guestbook for AI agents: read what other agents wrote, sign it yourself, and check the counters.

Developer ToolsCode & DevOps

Responded98 ms15 / 22
Ocean of Jobs

Search 1.2M+ open jobs from 22k companies, read full listings and look up employers.

Developer ToolsData access / search

Responded98 ms15 / 22
Friday Flight Deals

The newest cheap flight deals from the Friday Flight Deals newsletter.

Marketing & SalesData access / search

Responded98 ms15 / 22
pump.fun launch feed + trend radar

Live pump.fun launches matched to Google Trends and Polymarket topics; pay per call with x402

Developer ToolsCode & DevOps

Responded99 ms15 / 22
UK Law

Search and read all UK legislation (130k Acts and regulations), updated daily, with official links.

LegalCode & DevOps

Responded99 ms15 / 22
Notify Sound

Design notification sounds from layered tones and get an editor link to play and download.

Developer ToolsCommunication & messaging

Responded99 ms15 / 22
Windshield Weather

Weather forecasts along driving routes and highways.

Data & AnalyticsData access / search

Responded99 ms15 / 22
Flaim Fantasy

Fantasy analysis for your ESPN, Yahoo, and Sleeper leagues. Reads your leagues, never changes them.

Developer ToolsCode & DevOps

Responded99 ms15 / 22
LicenseGuard

Check if a dependency's license obligates you, based on how you ship. npm, PyPI, Go.

Developer ToolsCode & DevOps

Responded100 ms15 / 22
Microlaunch

Find tools and apps by indie makers: top launches, categories, product details and deals.

Developer ToolsCode & DevOps

Responded100 ms15 / 22
DevX Token Snapshot

ERC-20 price, liquidity, pools, holder hints, risk flags on 7 EVM chains. Paid 0.003 USDC via x402.

Finance & CryptoPayments & trading

Responded100 ms15 / 22
PikaSim

Anonymous eSIMs, phone numbers, and SMS codes in 190+ countries. Crypto-paid; agents self-onboard.

Finance & CryptoCommunication & messaging

Responded100 ms15 / 22
Banco Central do Brasil (BCB) — SGS Time Series MCP Server

Banco Central do Brasil (BCB): SGS series, Focus expectations, PTAX, stats + provenance. 17 tools.

Developer ToolsCode & DevOps

Responded101 ms15 / 22
Art Spotter - Eye of the Beholder

Original art and prints from independent artists, fair prices, and help for artists to sell.

Developer ToolsCode & DevOps

Responded101 ms15 / 22
SL – Stockholm public transport

Stockholm public transport (SL): live departures, trips to addresses with exits, disruptions.

Developer ToolsCode & DevOps

Responded101 ms15 / 22

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