REFERENCE · WEBSOCKET
Live subscriptions
Open up to three WebSocket connections per key. Across all connections, the deduplicated airport set is limited to 100.
Need more airports?
Purchase another METAR API key. Limits are applied per key so separate projects remain isolated.
Subscribe message
{"action":"subscribe","icaos":["KJFK","EGLL"]}Unsubscribe message
{"action":"unsubscribe","icaos":["EGLL"]}