There is no account-based service API. Agents can read the static OpenAPI description for public GET resources, the route JSON at /atlas/dawn-to-night.json, and the documentation files at /llms.txt, /llms-full.txt, and /index.md.

Does YSL require authentication or payment?

No. The atlas is free to browse and fetch. It has no signup, OAuth flow, payment plan, private user data, or write endpoints.

Yellowstone Sound Atlas (YSL)

A public listening atlas for Yellowstone sound specimens.

Q: What is Yellowstone Sound Atlas?

Yellowstone Sound Atlas is a public static web atlas that organizes Yellowstone National Park sound recordings into a playable route with specimen notes, themes, source credits, and share pages.

Yellowstone Sound Atlas is a static, open web archive that turns public Yellowstone National Park sound recordings into a playable route. It currently indexes 61 audio stops across thermal features, birds, wildlife, water, weather, human traces, and ambient park soundscapes. Each specimen includes a title, theme, source credit, description, share URL, and direct audio path.

Open the atlas Developer resources Read llms.txt

What It Covers

YSL focuses on Yellowstone sound specimens rather than generic travel content. The atlas is strongest for listening, citation, lightweight research, sound design reference, and browsing public park soundscapes by theme or mood.

Thermal recordings such as geysers, fumaroles, vents, mud pots, and springs.
Bird and wildlife recordings including cranes, ravens, robins, bison, elk, wolves, and foxes.
Weather, water, human, and ambient recordings that help agents describe the park soundscape.

How Agents Use It

Agents should start with /llms.txt, then fetch /llms-full.txt or /index.md for complete context. The route manifest at /atlas/dawn-to-night.json is the canonical machine-readable list of specimens.

The OpenAPI file documents only public, read-only static resources. It does not claim private account operations, write actions, OAuth, MCP, payments, or webhooks.

Truth Boundary

This is not an official National Park Service product. It does not run a hosted backend, does not collect accounts, and does not provide an authenticated API. Source audio and image credits point to National Park Service public materials; downstream users should verify rights for their own use.

For project intent, implementation notes, and crawler guidance, use developer resources, about, pricing, and privacy.