name: Yr / MET Weather API Plans and Pricing
description: >-
  The Yr and MET Norway Weather API is offered entirely free of charge with no
  paid tiers, subscriptions, or per-call billing. Usage is governed by the
  MET Weather API Terms of Service, which requires proper identification via
  the User-Agent header and compliance with rate limits. The service is funded
  by the Norwegian government through the Norwegian Meteorological Institute
  and the Norwegian Broadcasting Corporation (NRK).
version: '0.1'
specificationVersion: '0.1'
url: https://developer.yr.no/doc/TermsOfService/
plans:
  - name: Free (Open)
    description: >-
      Unlimited free access to all MET Weather API endpoints. No account
      registration, API key, or payment is required. Callers must identify
      themselves using a descriptive User-Agent header containing an application
      or domain name and a contact email or URL. All data is licensed under
      CC BY 4.0.
    url: https://developer.yr.no/doc/TermsOfService/
    isFree: true
    rateLimits:
      - name: Requests per second per application
        value: 20
        unit: requests/second
        scope: per application (aggregate across all clients)
    quotas: []
    features:
      - Access to all public MET Weather API endpoints
      - Locationforecast 2.0 (global 9-day forecasts)
      - MetAlerts 2.0 (weather warnings)
      - Nowcast 2.0 (Nordic short-range forecasts)
      - Sunrise 3.0 (sun/moon events)
      - Frost 0.9 (historical observations)
      - Oceanforecast 2.0 (marine forecasts)
      - Radar 2.0 (Nordic radar composites)
      - Air Quality Forecast 0.1 (Norway)
      - Aviation weather products
      - CC BY 4.0 licensed open data
    authentication:
      type: UserAgent
      description: >-
        No API key. Requests must include a User-Agent header with application
        name/URL and contact information, e.g.:
        "myapp.example.com support@example.com"