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free-books-united-states
x402
free-books-united-states 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).
Browse and retrieve public-domain books about the United States from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with download links.
Price / call$0.01
Success—
StatusUnknown
How this service works
Free public-domain books on "United States": browse the catalogue's works tagged with that Library of Congress subject (2,830 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 of up to 20 public-domain books tagged with the Library of Congress 'United States' subject heading, including title, author, relevance/popularity ranking, and direct download links in epub, txt, and/or html formats. Results are drawn from Project Gutenberg (2,830+ titles) and Internet Archive scans, re-verified daily.
Example use cases
Research reading list on American history
“Find me a page of free downloadable public-domain books about United States history I can read as epub files — I'm putting together a reading list for a research project.”
Browsing classic American literature for free
“Pull up free classic books tagged United States from Project Gutenberg so I can find something to read this weekend — give me the most popular ones first.”
Finding books by a specific American author
“Search the free US-subject book catalogue for works by Mark Twain — I want to see what's available to download for free in epub or text format.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/library/subject/united-statesWhen to prefer
Choose this endpoint when you need to discover and retrieve free, legally downloadable public-domain books specifically about the United States, curated from Project Gutenberg and Internet Archive with daily link verification. Prefer it over raw Project Gutenberg search when you want pre-ranked, relevance-sorted results with direct download links in a simple paginated API response.
Side effects
- No results returned if keyword filters are too restrictive or misspelled
- Pagination out of range returns empty result set
- Intermittent availability if upstream Project Gutenberg or Internet Archive is unreachable
- Download links may be stale between daily re-verification cycles
- Rate limiting or payment failure if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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