Yellowstone Sound Atlas is free to use.
| Plan | Price | Access | Limits |
|---|---|---|---|
| Public archive | USD 0 | Browse the atlas, fetch public static files, read route JSON, view share pages, and use agent-readable documentation | No application-level account, API key, or quota. CDN and hosting providers may apply ordinary abuse-prevention limits. |
No signup, OAuth flow, API token, payment card, billing account, or user account is required.
YSL does not sell access, subscriptions, support contracts, or paid data exports. It is an unofficial public static archive and listening interface.
The project links to National Park Service Yellowstone sound library materials. NPS labels these audio files as public domain, but downstream users should verify rights, credit, and third-party restrictions for their own use.