name: Department of Interior API Plans and Pricing
description: >-
  DOI bureau APIs are publicly funded federal government services provided
  at no cost to the public. All APIs are free to use. Some services offer
  tiered access with higher rate limits for registered API key holders.
plans:
  - name: Public Access (No Key)
    description: >-
      Open access to most DOI bureau APIs without registration. Available for
      exploratory use and low-volume data retrieval. Subject to default rate
      limits.
    price: Free
    features:
      - Access to NPS Data API with reduced rate limits
      - USGS Water Data APIs (OGC endpoints)
      - USGS Earthquake data feeds
      - USGS Mineral Resources data
      - BLM GIS REST services
      - ScienceBase catalog access

  - name: Registered Developer (API Key)
    description: >-
      Free registration provides an API key that unlocks higher rate limits
      for NPS and USGS APIs. Suitable for application developers, researchers,
      and data consumers with moderate to high usage needs.
    price: Free
    registrationURL: https://www.nps.gov/subjects/developer/get-started.htm
    features:
      - All public access features
      - Higher rate limits on NPS Data API
      - Higher rate limits on USGS Water Data APIs
      - Priority access for registered users
      - API key-based authentication via HTTP header

  - name: USGS Water Data API Key
    description: >-
      Separate free registration available for USGS Water Data APIs to access
      higher rate limits for water resource data including continuous values,
      daily values, and water quality portal data.
    price: Free
    registrationURL: https://api.waterdata.usgs.gov/signup/
    features:
      - Continuous sensor measurement data
      - Daily values (historical)
      - Water quality portal data
      - STAC API access
      - Higher requests-per-hour allowance

notes: >-
  As federal government APIs, all DOI bureau services are publicly funded and
  provided free of charge. There are no paid tiers, enterprise plans, or
  subscription fees. Commercial use is permitted under standard government
  data policies. Some data may carry specific licensing or attribution
  requirements.