# GET /contract - books.withzero.ai Contract Info

> GET /contract - books.withzero.ai Contract Info is a paid API for AI agents from books.withzero.ai, paid per call via MPP, price unknown, status unknown (last checked 2026-09-14).

Retrieves contract or terms information for the books.withzero.ai service

## Facts

- Endpoint: GET https://books.withzero.ai/contract
- Price: price unknown
- Payment: MPP
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Provider: books.withzero.ai
- Website: https://books.withzero.ai
- Canonical page: https://www.zero.xyz/c/books-withzero-ai-get-contract-books-withzero-ai-contract-info-21522d63
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6OIunk-nBucNSbs6H4AQB

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 books-withzero-ai-get-contract-books-withzero-ai-contract-info-21522d63
```

Example prompt: Can you pull up the contract or terms details for the books.withzero.ai service?

## When to prefer this

Use this endpoint when you need to understand the contractual terms, pricing structure, or service agreement governing the books.withzero.ai API before making calls or setting up automated workflows against it.

## Known failure modes

- 404 if contract endpoint is not found
- 500 server error if service is unavailable
- Empty or minimal response object if contract data is not populated
- Authentication or payment required error if endpoint is paywalled

## Output

Returns a JSON object containing contract or service terms information for the books.withzero.ai platform, likely including pricing, usage terms, or payment contract details related to the book search API.

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/books-withzero-ai-get-contract-books-withzero-ai-contract-info-21522d63/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from books.withzero.ai](https://www.zero.xyz/host/books.withzero.ai/llms.txt)