# clonecho Book Search

> clonecho Book Search is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Search for books by query (author, title, subject) and return metadata including authors, first-published year, ratings, and subjects

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/book-search
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clonecho-book-search-abb22085
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JZ7qeYKoQoIpQx0AjmtIe

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 clonecho-book-search-abb22085 -d '<json body>'
```

Example prompt: Can you search for books by Tolkien and show me their titles, authors, ratings, and subjects?

## When to prefer this

Use this endpoint when you need structured book metadata (authors, publication year, ratings, subjects) from a searchable catalog. Prefer this over Project Gutenberg endpoint when you need modern books or rating data rather than public-domain full-text downloads.

## Known failure modes

- Missing required ?q= parameter returns an error or empty response
- No matching books found returns an empty results list
- Invalid or misspelled query returns zero results
- Service unavailable returns HTTP 5xx
- Payment not fulfilled returns HTTP 402

## How this service works

MEDIA: books — authors, first-published year, ratings, subjects (?q=tolkien, required). Returns JSON.

## Output

A JSON array or object containing book records matching the query, each with fields such as title, author names, first published year, average rating, and subjects/genres.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clonecho-book-search-abb22085/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)