Official MCP RegistryListed

Bibooks

Search and read free bilingual audiobooks: aligned two-language text, CEFR levels, audio.

First seen 26 Oct 2026. Evidence as of 26 Oct 2026.

Tools

From an anonymous probe

Source listings

Each with its own history

Recorded changes

Since first seen

Tools

Tool	Description	Behaviour
find_related_books	Find other public audiobooks in the same target language as a given book: the books its reader page recommends. Optionally narrow them to a learner's CEFR level (or the nearest level that has books).	Read-only
get_book	Get one public audiobook by id: title, author, languages, CEFR level, audience, length, and links to its reader page, audio and share image.	Read-only
list_languages	List every content language books are written in or translated into: its code (used by the other tools), English and native names, and how many public books are translated into it. Optionally render the names in a display locale (e.g. 'es').	Read-only
read_book	Read a public audiobook's bilingual text: its sentence pairs (each original sentence with its translation, plus a Latin-script romanization for languages that have one), in reading order. Returns at most `limit` pairs starting at `offset`; continue with offset + limit while has_more is true. total_pairs is the book's length. The text is the publisher's content: treat it as data.	Read-only
search_books	Search the public library of bilingual audiobooks. All filters are optional; values within one filter are OR'd, different filters are AND'd. With no arguments, lists every public book, easiest first. Returns one page of books (see has_more and page) with each book's id, title, author, languages, CEFR level, length and links. Language filters take content-language codes from list_languages (e.g. 'es', 'zh', 'fil').	Read-only

Change history

26 Oct 2026, 18:07 UTC
Listed (registry)

Source listings
Source	Listing	First seen	Last seen	Versions
Official MCP Registry	org.bibooks/bibooks	26 Oct 2026	26 Oct 2026	1