# book-by-isbn

> book-by-isbn 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).

Look up book metadata by ISBN via Open Library, returning title, authors, publish date, publisher, page count, subjects, cover image, and Open Library link.

## Facts

- Endpoint: GET https://intel.rallylive.ca/data/book
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/book-by-isbn-3aa32883
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5_USlVtcDkHQacrLRFkFf

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability book-by-isbn-3aa32883
```

Example prompt: Can you look up the book details for ISBN 9780743273565 — I need the title, authors, publisher, and cover image?

## When to prefer this

Use this endpoint when you need quick, free book metadata from a well-known ISBN without requiring a paid books API. It is ideal for cataloguing, citation generation, or enriching reading lists. Prefer it when Open Library coverage is sufficient and you need basic bibliographic data rather than deep analytics or real-time sales data.

## Known failure modes

- ISBN not found in Open Library — returns empty or error response
- Malformed or invalid ISBN format — may return no results
- Open Library API downtime — request may fail or time out
- ISBN exists but metadata is incomplete — some fields may be null or missing

## How this service works

Book lookup by ISBN: title, authors, publish date, publisher, page count, subjects, cover image and Open Library link, from the free Open Library API. Cataloguing and citation data. $0.01 per lookup.

## Output

Returns a structured record for the book including: title, list of authors, publication date, publisher name, page count, subject/category tags, a URL to the cover image, and a direct link to the book's Open Library page.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/book-by-isbn-3aa32883/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)