# Project Gutenberg Books Search

> Project Gutenberg Books 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 public-domain Project Gutenberg books by title or author and return matching results with download counts as JSON

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/gutenberg-books-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/project-gutenberg-books-search-4e0b51c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rHM__mcqcXjHnMpLDGtFT

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 project-gutenberg-books-search-4e0b51c4 -d '<json body>'
```

Example prompt: Can you search Project Gutenberg for public-domain books by Charles Dickens and show me what's available along with how many times each has been downloaded?

## When to prefer this

Use this endpoint when you need to discover or look up public-domain books from Project Gutenberg by title or author name, especially when you need download popularity data. Prefer this over a general web search when you specifically want structured bibliographic data from the Gutenberg catalog.

## Known failure modes

- Empty results if query matches no books in the Gutenberg catalog
- Payment failure if USDC balance is insufficient for the $0.02 per-call fee
- Malformed or missing query parameter returns an error or empty response
- Network timeout if the upstream Gutenberg data source is slow

## How this service works

Search public-domain Project Gutenberg books by title or author q. Query: ?q= Returns JSON.

## Output

A JSON array of matching Project Gutenberg books, each containing book title, author name, and download count, filtered to results relevant to the search query.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/project-gutenberg-books-search-4e0b51c4/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)