By Samuel Coe, founder of Coe Code LLC
Last Updated: March 5, 2026
Yoto Guardian's Library Manager lets you upload custom audiobooks directly to your Yoto family library — the same library accessible from the official Yoto app and your Yoto players. You can upload individual titles or process multiple books at once, with optional AI assistance to generate metadata and chapter icons automatically.
The Library Manager accepts the following audio formats:
Upload your audio files as a zip archive or as a folder. Each zip or folder becomes one audiobook in your library.
The upload wizard walks you through each step of preparing your audiobook for the Yoto library:
Yoto Guardian integrates with Anthropic Claude and OpenAI to generate metadata for your uploaded audiobooks. When AI is configured, the wizard can:
To ensure AI access, go to Settings and enter your Anthropic or OpenAI API key. When available, Yoto Guardian may also provide shared AI access. Stored user keys are encrypted with AES-256-GCM before storage and are used only to make API calls on your behalf. You can delete stored keys at any time from Settings.
AI metadata generation is optional — you can upload and configure books manually without an API key.
To upload multiple audiobooks at once, use bulk upload mode. Drop multiple zip files onto the upload area. Yoto Guardian processes each zip as a separate audiobook and runs AI metadata generation across books in parallel (with throttling) when AI access is available. It then shows a results summary when complete. This is useful when adding a large collection at once, such as a series of chapter books.
The Library page in Yoto Guardian shows all cards in your Yoto family library. From here you can:
Playback rules let you customize behavior for specific cards. Rules are tied to individual cards, so each book or playlist can have its own behavior:
Access playback rules from the Library page or from the device card while a card is actively playing on a device.
The “Stop After” control appears on the device card whenever something is playing. Tap it to tell the player to stop after the current track or chapter finishes. This is a one-time action — it does not create a persistent rule — and is useful for “one more story” moments without configuring a full playback rule.
Yes. Yoto Guardian's Library Manager lets you upload custom audiobooks directly to your Yoto family library. Drop a zip file or folder of audio files and the upload wizard guides you through chapter organization, metadata, and artwork selection.
Yoto Guardian supports MP3, AAC, M4A, OGG, and Opus files for library uploads.
Yoto Guardian can automatically suggest titles, descriptions, and chapter icons for your uploaded audiobooks when AI access is available. This can use your configured Anthropic/OpenAI key, or Yoto Guardian-provided access when available.
No. AI metadata generation is optional. You can upload audiobooks and set metadata manually without an API key.
Yes. The bulk upload mode lets you drop multiple zip files at once and process them all in a single session.
Playback rules let you set per-card behavior: auto-skip specific tracks, stop playback after a particular chapter, or automatically transition to a different card when a track ends. Rules are configured from the Library page or from the device card while a card is playing.