# OpenWeb Ninja — Realtime Books Search SERP API

> OpenWeb Ninja — Realtime Books Search SERP API is a paid API for AI agents from x402.openwebninja.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns real-time book search results (titles, authors, prices, ratings, metadata) from search engines and book retailers for a given query.

## Facts

- Endpoint: GET https://x402.openwebninja.com/realtime-serp-data/books/search
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openweb-ninja-realtime-books-search-serp-api-8989664f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pdiZ5IiR7yIC7d-33WrlJ

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 openweb-ninja-realtime-books-search-serp-api-8989664f
```

Example prompt: Search for books about machine learning for beginners and give me the top results including titles, authors, prices, and ratings.

## When to prefer this

Choose this endpoint when you need real-time, live book search results including pricing and ratings without needing an API key or account — ideal for agents that require pay-per-call access via x402 (USDC on Base, Polygon, or Arbitrum) and need current book data rather than a static catalog.

## Known failure modes

- Empty or vague query returns no results
- Query too broad returns irrelevant results
- Retailer data may be unavailable for some regions
- Payment failure via x402 protocol blocks the request
- Rate limiting if called too frequently
- Stale results if underlying SERP data is temporarily cached

## How this service works

40+ public web-data, SERP, e-commerce, real-estate, finance and AI-search APIs, payable per call over x402 (USDC on Base, Polygon, Arbitrum). No account or API key required. Most endpoints $0.003; AI-model endpoints $0.005.

## Output

A JSON response containing real-time book search results including book titles, author names, prices, ratings, cover images, retailer links, and other relevant metadata sourced from live SERP and book retailer data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openweb-ninja-realtime-books-search-serp-api-8989664f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.openwebninja.com](https://www.zero.xyz/host/x402.openwebninja.com/llms.txt)