LibriVox

agent.md for AI agents

Free public domain audiobooks read by volunteers, with a catalog of more than 21,000 completed projects in 49 languages.

Open and public-domain media Library

Is LibriVox free for commercial use? Yes →

Website License

Price

Free

All audiobooks are free to listen to and download

Commercial use

Yes

Public Domain

Credit the author

Not needed

No credit needed

Agent access

Public API

no key needed

Rules for your agent

- LibriVox (Open and public-domain media). Free public domain audiobooks read by volunteers, with a catalog of more than 21,000 completed projects in 49 languages. Price: free; commercial use OK; no credit needed.
  Connect: download from https://librivox.org (no API).
  Get files: LibriVox API: https://librivox.org/api/feed/audiobooks (also /audiotracks and /authors); add format=json; extended=1 adds sections and Internet Archive URLs (json, xml, jsonp).
  Not allowed: Recordings are public domain in the USA, not necessarily in other countries; check the work's status in your country
  Not allowed: API limit parameter can no longer be set above 500; use offset for more
  Not allowed: For large-scale retrieval add a delay between requests
  Rule: Treat LibriVox recordings as public domain, as the site states; the homepage gives no further terms.
  Rule: Download files to your own storage instead of hotlinking.
  Rule: Check the LibriVox API update post for current API details before building on it.
  License: https://librivox.org (checked 2026-10-20; details: https://agentgid.com/assets/librivox/)

Paste it into your prompt or AGENTS.md. It is built from the license and API terms below.

License

License	Public Domain
Commercial use	Commercial use OK “all LibriVox recordings are in the Public Domain” librivox.org
Credit	No credit needed Same clause as quoted for commercial use.
Inside your app or game	Can ship inside your app “app developers, archivists, streaming channels and curators – are more than welcome to share and re-share” librivox.org
Monetized YouTube	Monetized YouTube unclear
AI training	Not stated
Bots and bulk downloads	Allowed through the official API or by the terms “add a delay between your requests” librivox.org/api/info
Rules	Treat LibriVox recordings as public domain, as the site states; the homepage gives no further terms. Download files to your own storage instead of hotlinking. Check the LibriVox API update post for current API details before building on it.

Connect it to an agent

How an agent gets files	LibriVox API: https://librivox.org/api/feed/audiobooks (also /audiotracks and /authors); add format=json; extended=1 adds sections and Internet Archive URLs · no sign-in
File formats	json, xml, jsonp
Not allowed	Recordings are public domain in the USA, not necessarily in other countries; check the work's status in your country API limit parameter can no longer be set above 500; use offset for more For large-scale retrieval add a delay between requests
MCP server	None found
API	Yes
GitHub	mrfentmen/librivox-mcp

Pricing

Free	All audiobooks are free to listen to and download
Paid from	—
Usage price	—
Good to know	Added automatically: MCP servers in the official MCP Registry connect to it. License read from the official pages.

Sources

Read on Oct 20, 2026: librivox.org.

Not legal advice. Check the license page before you ship.

Alternatives to LibriVox

All open and public-domain media

Source	Price	License	Monetized YouTube	Agent access
Internet Archive Digital library of books, video, audio, images and software with an open API; rights are set per item. agent.md	Free	Commercial: conditions Credit varies	—	API `internetarchive`
NASA 3D Resources Free NASA 3D models, with a GitHub mirror (nasa/NASA-3D-Resources); no API. agent.md	Free	Commercial: conditions Credit required	—	Download
Europeana Aggregator of European cultural heritage items with a free API; metadata is CC0 and each object shows its own rights statement. agent.md	Free	Commercial: conditions Credit varies	—	API
Icosa Gallery Open-source community 3D gallery with a public REST API and per-asset Creative Commons licenses. agent.md	Free	Commercial: conditions Credit varies	—	API
Metropolitan Museum of Art Open Access CC0 images and data for public-domain artworks in The Met collection, with a free REST API. agent.md	Free	Commercial OK No credit	Yes	API
NASA Image and Video Library NASA images, video and audio, generally not copyrighted in the US, with a keyless search API. agent.md	Free	Commercial: conditions Credit required	With conditions	API
Openverse Search engine and API for openly licensed and public-domain images and audio. agent.md	Free	Commercial: conditions Credit varies No bots	With conditions	API
Smithsonian Open Access CC0 Smithsonian collection records and 3D models, with a REST API (api.data.gov key) and an alpha 3D API. agent.md	Free	Commercial: conditions No credit	With conditions	API