Aviation Weather MCP Server

io.github.cyanheads/aviation-weather-mcp-server

answering

Aviation Weather MCP Server is answering right now. Last checked moments ago. 95 installs a week from npm. It exposes 5 tools. Last commit 30 Jul 2026.

Fetch METARs, TAFs, PIREPs, and SIGMETs/AIRMETs from the NWS Aviation Weather Center.

Installs per day peak 57 · avg 16 · -13% w/w

a month agotoday

Uptime history 43 hours of history · worst hour 75%

43 hours agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

368 ms

Response time

average over 24h

Installs / week

npm and PyPI

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add aviation-weather-mcp-server --transport http https://aviation-weather.caseyjhand.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "aviation-weather-mcp-server": {
      "url": "https://aviation-weather.caseyjhand.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.aviation-weather-mcp-server]
url = "https://aviation-weather.caseyjhand.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "aviation-weather-mcp-server": {
      "url": "https://aviation-weather.caseyjhand.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "aviation-weather-mcp-server": {
      "url": "https://aviation-weather.caseyjhand.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

aviation

aviation_find_stations

Resolve an airport or weather reporting station by ICAO identifier, or discover stations within a bounding box or US state. Returns all identifier variants (ICAO/IATA/FAA), coordinates, elevation, and available data types (METAR, TAF, SYNOP, etc.). Station IDs must be 4-letter ICAO format (e.g., KSEA, KJFK). At least one of station_ids, bbox, or state is required.

aviation_get_advisories

Get active SIGMETs and AIRMETs for a region. Returns each advisory with hazard type (CONVECTIVE, TURBULENCE, ICING, IFR, MTN OBSCN, etc.), severity, altitude range, valid period, polygon coordinates, and raw text. Coverage is US-centric (NWS Aviation Weather Center). During fair-weather periods no advisories may be active — an empty result is normal, not an error. Filter by advisory_type, hazard, or bbox.

aviation_get_metar

Get current weather observations (METARs) for one or more airports. Returns decoded fields — wind direction/speed/gusts, visibility, ceiling, temperature, dewpoint, altimeter, cloud layers — plus the computed flight category (VFR/MVFR/IFR/LIFR) and the raw METAR string. Accepts 1–10 ICAO station IDs (e.g., KSEA, KJFK). Use aviation_find_stations to resolve or verify an ICAO ID, or to discover nearby stations.

aviation_get_pireps

Get recent Pilot Reports (PIREPs) near an airport or within a bounding box. Returns decoded turbulence, icing, and cloud reports with altitude, aircraft type, intensity, and the raw PIREP string. Requires either station_id (ICAO center point for radial search, e.g., KSEA) or bbox (area search) — not both. Coverage is US-centric; PIREPs are sparse and absence of reports does not imply smooth conditions.

aviation_get_taf

Get the Terminal Aerodrome Forecast (TAF) for one or more airports. Returns each forecast period with valid times, wind, visibility, decoded weather conditions, and cloud layers, plus the raw TAF string. TAFs cover the next 24–30 hours and are issued only for airports with scheduled commercial service; check data_types from aviation_find_stations to confirm TAF availability. Accepts 1–4 ICAO station IDs (e.g., KSEA, KJFK).

Endpoints

URL	Transport	State	Latency	Checked
https://aviation-weather.caseyjhand.com/mcp	streamable-http	answering	201 ms	0 min ago

Aviation Weather MCP Server — questions

Answers built from our own checks of this server.

What can Aviation Weather MCP Server do?

It exposes 5 tools, read directly from the server on our last check. Among them: aviation_find_stations, aviation_get_advisories, aviation_get_metar, aviation_get_pireps, aviation_get_taf. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Aviation Weather MCP Server working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 368 ms. The bar chart above shows every period we have measured.

How do I connect Aviation Weather MCP Server?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Aviation Weather MCP Server need an API key?

No. Aviation Weather MCP Server completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Aviation Weather MCP Server?

It answers our handshake in 368 ms on average, which is faster than 38% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Aviation Weather MCP Server?

The npm package @cyanheads/aviation-weather-mcp-server was installed 95 times in the last week. Week over week that is -13%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Aviation Weather MCP Server open source?

Yes — it is published under the Apache-2.0 licence, written in TypeScript, 1 stars on GitHub and 5 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.