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Free Public-Domain Books on Siblings Subject
x402
Free Public-Domain Books on Siblings Subject is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns a ranked, paginated catalogue of free public-domain books tagged with the Library of Congress 'Siblings' subject, with direct download links in epub/txt/html formats.
Price / call$0.01
Success—
StatusUnknown
How this service works
Free public-domain books on "Siblings": browse the catalogue's works tagged with that Library of Congress subject (467 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Output
A paginated list (20 items per page) of public-domain books tagged with the 'Siblings' Library of Congress subject, ranked by relevance and popularity, with direct download links in epub, txt, and html formats. Sourced from Project Gutenberg and Internet Archive, re-verified daily.
Example use cases
Classic sibling fiction for reading app
“Pull me a list of free public-domain books about siblings I can download in epub format for my reading app — show me the most popular ones first.”
Research on sibling themes in literature
“I'm researching how sibling relationships are portrayed in classic literature — can you find me free downloadable books tagged with siblings in the public-domain catalogue?”
Narrowing by author for siblings books
“Find me free public-domain books about siblings written by Louisa May Alcott — I need direct download links in txt or html format.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/library/subject/siblingsWhen to prefer
Choose this endpoint when you need to discover or list free, legally downloadable public-domain books specifically about sibling relationships, with ready-to-use epub/txt/html links. Prefer it over generic web search when you need structured catalogue data with popularity ranking and verified download links from Project Gutenberg and Internet Archive.
Side effects
- No results returned if keyword filter is too narrow or misspelled
- Rate limiting or payment failure if USDC micro-payment is not processed
- Occasional broken download links if upstream source (Project Gutenberg/Internet Archive) has moved or removed the file
- Empty result set for highly specific author+title combinations that don't match any siblings-tagged work
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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