name: Project Gutenberg FinOps
description: >-
  Project Gutenberg and the Gutendex API are entirely free with no costs
  associated with API consumption. There are no metered charges, overage fees,
  or subscription costs. The primary financial consideration is infrastructure
  cost if an organization chooses to self-host the Gutendex server for
  production reliability.
model: free
currency: USD
costs:
  - name: Gutendex Public API Usage
    description: >-
      Using the public Gutendex API at gutendex.com incurs no cost. The service
      is free and open with no authentication, API keys, or billing.
    type: usage
    price: 0.00
    unit: request
    notes: >-
      No metering, no billing, no account required. Suitable for development,
      prototyping, and light production use.

  - name: Self-Hosted Gutendex Infrastructure
    description: >-
      Organizations needing production SLAs should self-host Gutendex. Costs
      are entirely driven by the chosen cloud or on-premises infrastructure.
      A minimal Django application with a PostgreSQL database is sufficient.
    type: infrastructure
    price: null
    unit: month
    notes: >-
      Gutendex is a lightweight Django app. A small cloud VM (1-2 vCPU, 2GB RAM)
      with PostgreSQL is sufficient for most workloads. Initial catalog download
      requires ingesting nightly Project Gutenberg XML/RDF archives.
      Estimate $5-$20/month on commodity cloud providers for light to moderate
      traffic.

  - name: Project Gutenberg Content Access
    description: >-
      Downloading ebooks and content from Project Gutenberg mirrors is free.
      No fees are charged for any content as all works are in the public domain
      in the United States.
    type: content
    price: 0.00
    unit: download
    notes: >-
      Bulk downloads should use rsync from official mirrors rather than the
      main gutenberg.org site. See https://www.gutenberg.org/help/mirroring.html

optimization:
  - description: >-
      Cache Gutendex API responses locally to reduce calls to the shared public
      instance. The catalog does not change more than once per day.
  - description: >-
      For bulk catalog work, download the daily XML/RDF feed or weekly CSV
      directly rather than paginating through the API.
      URL: https://www.gutenberg.org/cache/epub/feeds/
  - description: >-
      Self-host Gutendex for production workloads to eliminate dependency on the
      volunteer-run public instance and avoid impacting other community users.
  - description: >-
      Use the OPDS feed (https://www.gutenberg.org/ebooks/search.opds/) for
      application integration when Gutendex is not suitable.