# Open Library Trending Books

> Open Library Trending Books is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns a list of books currently trending on Open Library today, as a JSON feed.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/book-trending
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/open-library-trending-books-3ff11f09
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7afAF4cz0yQ6vcwQwoJhQ

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 open-library-trending-books-3ff11f09 -d '<json body>'
```

Example prompt: What books are trending on Open Library right now? Give me today's list.

## When to prefer this

Use this endpoint when you need real-time trending book data sourced from Open Library without needing to query Open Library's own API directly, and when you want a simple paid-per-call JSON feed with no authentication setup. Prefer over direct Open Library API calls when you need a managed, metered endpoint in an x402 payment context.

## Known failure modes

- Open Library upstream API is unavailable — may return 5xx or empty response
- No trending data available for today yet — may return empty list
- x402 payment not completed — returns 402 Payment Required
- Network timeout if upstream Open Library is slow

## How this service works

MEDIA: books trending on Open Library today. Returns JSON.

## Output

A JSON array of books currently trending on Open Library, likely including book titles, authors, identifiers, and trending metadata such as rank or read count for the current day.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/open-library-trending-books-3ff11f09/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)