name: Project Gutenberg Plans and Pricing
description: >-
  Project Gutenberg and the Gutendex API are entirely free and open. There are
  no pricing tiers, subscription plans, or commercial offerings. The Gutendex
  API is a volunteer-maintained open-source project released under the MIT
  license. Direct access to Project Gutenberg content is also free with no
  registration required. For production workloads, self-hosting the Gutendex
  server using the open-source code is recommended.
plans:
  - name: Free
    description: >-
      Full access to the Gutendex API with no authentication, no API keys, and
      no usage fees. Provides access to metadata for 75,000+ public domain books
      including titles, authors, subjects, bookshelves, download links, and
      download counts.
    url: https://gutendex.com/
    price: 0.00
    currency: USD
    unit: month
    features:
      - Unlimited API calls (best-effort, self-service)
      - Access to 75,000+ book metadata records
      - Filtering by language, copyright, topic, author years, MIME type
      - Paginated JSON responses (up to 32 results per page)
      - Individual book lookup by Project Gutenberg ID
      - Download links for EPUB, Kindle, HTML, plain text formats
      - No authentication required
      - No API key required
  - name: Self-Hosted
    description: >-
      Operators can deploy their own Gutendex instance using the open-source
      MIT-licensed Django application. This provides full control over
      availability, performance, and data freshness. Project Gutenberg publishes
      nightly XML/RDF catalog archives that Gutendex downloads and indexes.
    url: https://github.com/garethbjohnson/gutendex
    price: 0.00
    currency: USD
    unit: month
    features:
      - Full open-source MIT-licensed codebase
      - Self-managed infrastructure
      - Nightly catalog updates from Project Gutenberg archives
      - Configurable database and server settings
      - No dependency on gutendex.com uptime