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free-works-by-subject
x402
free-works-by-subject is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Browse public-domain books, audiobooks, and films organized by Library of Congress subject headings or LibriVox genres, returning matching works with download links.
Price / call$0.01
Success—
StatusUnknown
How this service works
Browse free works by subject or genre (Library of Congress subject headings and LibriVox genres): 'detective and mystery stories', 'physics', 'french poetry', 'documentary'. Returns matching public-domain books, audiobooks and films with download links. $0.01 per browse.
Output
A list of matching public-domain books, audiobooks, and/or films filtered by the requested subject heading or genre, each including metadata (title, author, format) and direct download links.
Example use cases
Browsing free physics textbooks
“Find me free public-domain books and resources on physics that I can download — I want textbooks or classic works in that subject area.”
Discovering classic mystery audiobooks
“Can you show me free audiobooks in the detective and mystery stories genre? I want ones I can listen to and download for free.”
Finding free French poetry collections
“I'm looking for free public-domain French poetry — can you browse works in that subject and give me download links?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/library/subjectWhen to prefer
Choose this endpoint when you need to browse or discover public-domain works by topic, genre, or subject category — especially when you want to explore what's available rather than search for a specific title. It is well-suited for finding free downloadable books, audiobooks, and films categorized under Library of Congress subject headings or LibriVox genres.
Side effects
- No works found for an obscure or misspelled subject heading — returns empty results
- Subject string does not match any Library of Congress heading or LibriVox genre — no results returned
- Network or upstream library source unavailable — service may return an error
- Payment of $0.01 USDC not completed — request rejected with 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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