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Alf Book Search by MAD
x402
Alf Book Search by MAD is a paid API for AI agents from agent.maddegen.art, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Search for books by title, author, or ISBN and retrieve metadata including editions, ratings, subjects, page count, and cover image
Price / call$0.001
Success—
StatusUnknown
How this service works
Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.
Output
Returns a JSON object with book metadata including: first published year, number of editions, available ISBNs, page count, community ratings, subject categories, and a cover image URL. Response is delivered in approximately 120ms with billing recorded at $0.001 USDC per call via x402.
Example use cases
ISBN lookup for purchase decision
“I have the ISBN 9780756404741 — can you pull up the full details on that book, including its page count, ratings, and subjects?”
Author bibliography research
“Search for books by Ursula K. Le Guin and show me the top 5 results with their publication years, editions, and ratings.”
Subject-based book discovery
“Find me books about stoic philosophy — I want to see the page counts, ratings, and subjects for the top results.”
Technical details
Endpoint
POSThttps://agent.maddegen.art/hub/api/v1/tools/book_search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured bibliographic metadata — including ratings, subjects, editions, and cover images — for a book identified by title, author, or ISBN. It is particularly useful when an agent needs to enrich a reading list, validate book references, or provide detailed book information to a user. It is not suited for full-text search, book purchase/ordering, or streaming literary content.
Side effects
- Query returns no results if the title, author, or ISBN does not match any records in the underlying book database
- Ambiguous queries (e.g. common author names) may return unrelated books
- ISBN not found returns empty or error result
- Rate limiting or payment failure via x402 may block the request
- Limit parameter ignored or capped at a server-defined maximum
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| queryrequired | string | title, author or ISBN |
Output
Schema · Response
{
"ms": 120,
"ok": true,
"data": {
"summary": "Find books by title, author, subject or ISBN: first published year, editions, ISBNs, page count, ratings, subjects and cover image."
},
"tool": "book_search",
"billing": {
"usd": 0.001,
"mode": "x402"
}
}Tags
x402
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