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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1052 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
US Severe Weather Alerts MCP

Active National Weather Service warnings for any US ZIP code. Free weather_alerts tool.

Developer ToolsCode & DevOps

Responded90 ms12 / 22
Mitre Attck

MITRE ATT&CK MCP — STIX bundles from github.com/mitre/cti.

Developer ToolsCode & DevOps

Outdated check94 ms12 / 22
Canada Postal Code Lookup MCP

Resolve Canadian postal codes to city, province and coordinates.

Developer ToolsCode & DevOps

Responded118 ms12 / 22
Canada Weather Alerts MCP

Active Environment Canada weather warnings for any Canadian postal code.

Developer ToolsCode & DevOps

Responded121 ms12 / 22
Canada Earthquake Alerts MCP

Recent earthquakes near any Canadian postal code.

Developer ToolsCode & DevOps

Responded121 ms12 / 22
Open Claw x402 Tools

Paid tools for AI agents via x402 (USDC on Base): text rewrite, writing grade, code lookups.

Finance & CryptoPayments & trading

Outdated check124 ms12 / 22
Canada Weather Forecast MCP

Official Environment Canada forecasts and current conditions for any Canadian postal code.

Developer ToolsCode & DevOps

Responded126 ms12 / 22
US Earthquake Risk & Alerts MCP

Recent earthquakes near any US ZIP code from USGS. Free recent_quakes tool.

Developer ToolsCode & DevOps

Responded143 ms12 / 22
Japan Postal Code Lookup MCP

Resolve Japanese 〒 postcodes to prefecture, city and town.

Real Estate & PropertyCode & DevOps

Responded145 ms12 / 22
Outdated check149 ms12 / 22
Canada Climate Observations MCP

Official Environment Canada climate station observations near any postal code.

Developer ToolsCode & DevOps

Responded177 ms12 / 22
xmp4 — Semantic code knowledge for your stack

OSS libs in your stack, really used: source, tests, callers. C#, Java, TS, Python, Rust, PHP+.

OtherOther

Outdated check197 ms12 / 22
Canada Air Quality (AQHI) MCP

Canada's Air Quality Health Index for any postal code.

Data & AnalyticsCode & DevOps

Responded203 ms12 / 22
Canada River Levels & Flood Watch MCP

Real-time river and lake levels from Water Survey of Canada gauges near any postal code.

Developer ToolsCode & DevOps

Responded224 ms12 / 22
appbuilderai.studio

Generated code you download. PWA export and deployment handoff to Empire Cloud. Free / Pro $12/mo /

OtherOther

Outdated check566 ms12 / 22
io.github.haserisa0810-gif/nanami-products

Pre-computed astrology YAML via Swiss Ephemeris. Calculation is code, interpretation is AI.

Developer ToolsCode & DevOps

Outdated check894 ms12 / 22
CarsMultiverse — the recall record

Vehicle safety recalls from four registers, matched across borders on the maker's own code.

OtherOther

Outdated check55 ms11 / 22
io.github.f-tiger/getecoback-climate-weather

Superseded by io.github.f-tiger/hvac-btu-heat-klimaanlage — same server, same URL.

Developer ToolsCode & DevOps

Outdated check60 ms11 / 22
Motion by Frapea

One sentence to a finished animation: your AI writes motion graphics as code and checks real frames.

MediaAI / LLM tooling

Outdated check76 ms11 / 22
io.github.f-tiger/getecoback-raumklima

Superseded by io.github.f-tiger/hvac-btu-heat-klimaanlage — same server, same URL.

Developer ToolsCode & DevOps

Outdated check89 ms11 / 22
com.googleapis.container/mcp

Provides read access to your GKE and Kubernetes resources.

Developer ToolsCode & DevOps

Outdated check111 ms11 / 22
GameAnalytics Documentation

Search GameAnalytics docs: Unity, Unreal, iOS, Android SDK and API guides for mobile game analytics.

Data & AnalyticsFile & docs

Outdated check120 ms11 / 22
Ghosty Studio docs

Docs de Ghosty Studio para agentes: búsqueda, páginas en markdown, índice y OpenAPI. Sin auth.

Developer ToolsFile & docs

Outdated check159 ms11 / 22
QuintaDB

No-code databases, forms, portals and AI sites. Manage records and automation via natural language.

Developer ToolsAutomation & workflows

Outdated check193 ms11 / 22

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