Freesound by Music Technology Group, Universitat Pompeu Fabra

- Freesound (Sound effects). Collaborative database of CC0, CC BY and CC BY-NC sounds with a REST API. Price: free; commercial use with conditions; credit depends on the item; ship inside your app with conditions.
  Connect: API docs https://freesound.org/docs/api/ (API key needed). Limits: 60 req/min and 2,000/day; downloads 30/min and 500/day; original-quality downloads need OAuth2.
  Rule: Use only CC0 or CC BY sounds in monetized work; under BY-NC you cannot earn money.
  Rule: Credit sound name, author, Freesound link and license for CC BY sounds.
  Rule: Agree commercial API use with UPF before going live.
  License: https://freesound.org/help/faq/ (checked 2026-10-10; details: https://agentgid.com/assets/freesound/)

Paste it into your prompt or AGENTS.md. It is built from the license and API terms below.

License

Connect it to an agent

Pricing

Sources

Read on Oct 10, 2026: freesound.org/docs/api/, freesound.org/docs/api/overview.html, freesound.org/help/faq/, freesound.org/help/tos_api/, github.com/MTG/freesound-python.

Not confirmed: A monetized automated channel probably counts as commercial API use; no PyPI name for the Python client.

Not legal advice. Check the license page before you ship.