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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1102 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
Arcgis Branson

City of Branson GIS — Branson, Missouri open geospatial data (ArcGIS).

Data & AnalyticsCode & DevOps

Responded170 ms13 / 22
Earth & Sky

Live earthquakes, ISS position, weather, moon phase, and true star visibility. No key.

Data & AnalyticsData access / search

Outdated check13 ms12 / 22
Dataset licence facts

Licence facts for Hugging Face datasets: declared licence, files, sources, conflicts.

Data & AnalyticsData access / search

Outdated check50 ms12 / 22
VisionLibra

Search ToF/LiDAR sensors, Wego egocentric capture rigs and Physical AI datasets; request quotes.

Data & AnalyticsData access / search

Outdated check72 ms12 / 22
QuantRisk

Portfolio risk analytics — VaR, Monte Carlo, optimization, options Greeks, stress testing.

Data & AnalyticsData access / search

Outdated check94 ms12 / 22
Watermelon UI

Search free React, Tailwind, and shadcn components, blocks, and dashboards; get installable source.

Data & AnalyticsData access / search

Outdated check94 ms12 / 22
today.solarstorm/solarstorm

Space weather: Kp index, NOAA 3-day geomagnetic forecast, solar flares, aurora visibility.

Data & AnalyticsData access / search

Outdated check111 ms12 / 22
telo

Apple Health history for Claude, ChatGPT and any MCP client: sleep, HRV, workouts, daily metrics.

Data & AnalyticsAI / LLM tooling

Outdated check131 ms12 / 22
Location & Demand Intelligence

Pay-per-call where-and-when-to-operate signals from official local statistics.

Data & AnalyticsData access / search

Outdated check135 ms12 / 22
TripHook

Find group trips and day outs to join, events in a city, and where to go by weather and budget.

Data & AnalyticsData access / search

Outdated check138 ms12 / 22
io.telemost/telemost-mcp-server

Telegram channel analytics and statistics for AI agents, pay-per-call in USDC via x402.

Data & AnalyticsPayments & trading

Outdated check145 ms12 / 22
ai.sitectrl/sitectrl

Your AI builds real hosted websites: describe it, get a live site with SSL, forms, analytics. Free.

Data & AnalyticsData access / search

Outdated check172 ms12 / 22
Psilocybin Research MCP — Papers, Trials and Research Data

Read-only psilocybin literature, trial facts, citations and verified bibliographic datasets.

Data & AnalyticsKnowledge & memory

Outdated check176 ms12 / 22
agentView

Display delivery platform for AI agents. Push HTML, dashboards and live data to screens.

Data & AnalyticsData access / search

Outdated check189 ms12 / 22
com.toolsthatrank/serp-metrics

Impression-weighted SERP position, click projection on your own CTR curve, share of voice

Data & AnalyticsBrowser & web scraping

Outdated check191 ms12 / 22
io.bildata/bildata

Danish vehicle registration tax (registreringsafgift) calculator and DMR registration statistics

Data & AnalyticsData access / search

Outdated check205 ms12 / 22
CasaNest

Search public property listings in Portugal, compare homes and read INE housing statistics.

Data & AnalyticsData access / search

Outdated check220 ms12 / 22
Atmy air quality

PM2.5 of 300+ cities: now, history, forecast, rankings; 12 000 sensors with a quality rating.

Data & AnalyticsData access / search

Outdated check244 ms12 / 22
com.thecastlemap/castles

Castles, fortresses, palaces and ruins worldwide: search, nearby, fame ranking, statistics. CC0.

Data & AnalyticsData access / search

Outdated check248 ms12 / 22
WeatherXM FACT — Forecast Accuracy & Ground-Truth Verification

Scores 45 NWP & AI weather models (ECMWF, GFS, ICON, meteoblue, MOSAIC) against 8,927 stations.

Data & AnalyticsData access / search

Outdated check252 ms12 / 22
Solano — marine & outdoor weather

Marine and outdoor weather: multi-model forecasts, official bulletins, tides, anchorages.

Data & AnalyticsData access / search

Outdated check261 ms12 / 22
Mammoth Docs

Search and read the Mammoth Analytics docs. Tools: search_docs, get_doc, list_docs.

Data & AnalyticsData access / search

Outdated check288 ms12 / 22
Dryos

Live US power market prices, load, generation, weather and permits for AI agents.

Data & AnalyticsData access / search

Outdated check321 ms12 / 22
com.jojapi/similarweb

Similarweb: Similarweb API allows you to access powerful insights into web analytics and online.

Data & AnalyticsData access / search

Outdated check343 ms12 / 22

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