# free-books-children

> free-books-children 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 children's books from Project Gutenberg and Internet Archive, with epub/txt/html download links

## Facts

- Endpoint: GET https://intel.rallylive.ca/library/subject/children
- 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/free-books-children-78345b81
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6s-OoJbxT81n8lBz5lBnc

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 free-books-children-78345b81
```

Example prompt: Can you find me a list of popular free public-domain children's books I can download — ideally something classic like Beatrix Potter or Lewis Carroll — and give me the epub or text download links?

## When to prefer this

Choose this endpoint when you need a pre-filtered, relevance-ranked list of free, legally downloadable children's books from trusted public-domain sources (Project Gutenberg + Internet Archive) without having to scrape or query those sites directly. It is ideal for building reading lists, populating educational apps, or discovering classic children's literature by title or author keyword. Prefer it over general web search when you need direct epub/txt/html download links rather than landing pages.

## Known failure modes

- No results returned if query keywords match no titles or authors in the catalogue
- Rate limiting or payment failure if USDC micropayment ($0.01) is not processed
- Stale or broken download links if a source removes content between daily re-verification cycles
- Empty page if requested page number exceeds total results

## How this service works

Free public-domain books on "Children": browse the catalogue's works tagged with that Library of Congress subject (774 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 page of up to 20 public-domain children's books ranked by relevance and popularity, each including title, author, subject tags, and direct download links in epub, txt, and/or html formats. Results are drawn from Project Gutenberg (774+ titles) and Internet Archive scans, re-verified daily.

## 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/free-books-children-78345b81/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)