> ## Documentation Index
> Fetch the complete documentation index at: https://docs.yousonder.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Changes to the Sonder API.

<Update label="23 September 2026" description="v1">
  The Sonder API launches.

  * `GET /account`, `/books`, `/videos`, `/videos/{id}`, `/stats` and `/events`
  * Viral days and view milestones, with history back to 15 June 2026
  * API keys in Sonder under Settings → API keys
  * One-click connect (OAuth 2.0 authorization code, PKCE)
</Update>