API · MCP

Point an AI at the same data you use

NOTAMET runs an MCP server and a small set of REST endpoints. An agent can ask for the NOTAMs that matter to a flight, the weather around a point, or a full route briefing — and get an answer with the source and the licence attached.

Create an API key Start free

Free with an account: 200 calls per day, shared by up to 5 keys.

The MCP server

Endpoint: https://notamet.com/api/mcp · transport: Streamable HTTP (JSON-RPC over POST). Five tools, no session, no streaming to configure.

search_notams

Active NOTAMs for an aerodrome or around a point, filtered by Q-code and flight level.

icao · lat/lon · radius_nm · qcode · min_fl · max_fl · hours
get_weather

METARs from the last three hours and valid TAFs, with the raw report and decoded fields.

icao · lat/lon · radius_nm
route_briefing

Route briefing: everything inside a 20 NM corridor either side of the great circle, filtered by level and grouped by leg. No other aviation MCP has this.

dep · dest · altn · fl · hours
station_normals

Monthly climate normals: mean, max and min temperature, precipitation and wet days.

icao
airport_info

Aerodrome record, its latest METAR and how many NOTAMs are active right now.

icao

Connecting a client

Claude Desktop, Cursor and any other MCP client: put the key in the header.

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "notamet": {
      "type": "http",
      "url": "https://notamet.com/api/mcp",
      "headers": {
        "Authorization": "Bearer nm_live_TU_CLAVE"
      }
    }
  }
}

Cursor — .cursor/mcp.json

{
  "mcpServers": {
    "notamet": {
      "url": "https://notamet.com/api/mcp",
      "headers": { "Authorization": "Bearer nm_live_TU_CLAVE" }
    }
  }
}

The key is shown once, when you create it. If you lose it, revoke it in your account and create another.

Or plain HTTP

The REST endpoints stay open for one-off requests, rate limited by IP at 60 requests per minute.

/api/notam?designador=LEMDNOTAM de un aeródromo ICAO
/api/metar?lat=37.42&lon=-5.89&radius=50METAR en un radio (NM)
/api/taf?lat=37.42&lon=-5.89&radius=50TAF en un radio (NM)
/api/aerodromes?country=ESDirectorio de aeródromos por país

Limits, and what this is not

200 calls per day per account — not per key — reset at 00:00 UTC. Over that, the server answers 429.
One key, one account. Keys are personal: sharing one means sharing the same daily quota.
Not for operational use. This is a briefing aid, not an aeronautical information service. Verify every item against the official publication of the competent authority before flight.
Telemetry. We count calls per key and day to size the service — it also tells us which key is doing the work. We do not store the content of your prompts.

Licence

Data derived from public aeronautical sources is published under CC BY 4.0. Every response includes the attribution line, so keeping it is all you have to do:

Attribution returned with every payload

Data: NOTAMET (notamet.com) · CC BY 4.0 · sources: ENAIRE/INSIGNIA, FAA NMS, NOAA/NWS AWC, EUROCONTROL EAD.

The licence covers the data, not the service: the code, the design, the editorial texts and the NOTAMET mark are reserved. We do not sell the data — we sell the tool.