Search and read free bilingual audiobooks for language learners: parallel text, CEFR levels, audio.
Connect Remote server
claude mcp add --transport http bibooks https://bibooks.org/mcp
{
"mcpServers": {
"bibooks": {
"url": "https://bibooks.org/mcp"
}
}
}
{
"servers": {
"bibooks": {
"type": "http",
"url": "https://bibooks.org/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://bibooks.org/mcp
Tools 5 found in our last check
search_booksSearch 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, a…
get_bookGet one public audiobook by id: title, author, languages, CEFR level, audience, length, and links to its reader page, audio and share image.
read_bookRead 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_…
find_related_booksFind 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).
list_languagesList 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').
Details
| Endpoint | https://bibooks.org/mcp (Streamable HTTP) |
| First published | 30 Oct 2026 |
| Last updated | 30 Oct 2026 |
| Registry name | org.bibooks/bibooks |
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