AI-powered reader features: translate, text-to-speech, dictionary, and text analysis (explain/expand/summarize). All endpoints require the reader-token header.

Endpoints for managing user highlights and annotations within the reader. All endpoints require the reader-token header.

Polpo is the internal API used by the Volpe reader. It handles reader session initialization, user notes/highlights, in-reader search, and AI-powered integrations (translate, listen, dictionary, explain/expand/summarize).

Full-text search within the content of a publication.

Reader session management. The POST /sessions endpoint is the entry point for the reader — it initializes the session and returns all the content URLs needed to render the publication.