Getting Started

    Get an API key and make your first weather request in under a minute.

    1. Sign up

    Create a free account at activeweather.com/signup. Each account includes a free tier with 10,000 API calls per day.

    2. Get your API key

    After signup, your API key is available on the dashboard. Keys use the format pub_ followed by 32 hex characters, for example: 

    pub_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4

    3. Make your first request

    Fetch a 48-hour forecast for an H3 cell using your API key in the x-api-key header: 

    curl -H "x-api-key: pub_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4" \
  https://activeweather.com/v1/forecast/862a10747ffffff.json

    You'll get a JSON response with hourly forecasts, source attribution, and cache metadata.

    H3 cells? activeweather uses Uber's H3 hexagonal grid system for location indexing. See H3 Cell Lookup to convert latitude/longitude to an H3 index.

    What's next

    Next: Authentication →