# Services from bookproof-api.sn95wjq846.chatgpt.site on Zero

> bookproof-api.sn95wjq846.chatgpt.site serves 2 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/bookproof-api.sn95wjq846.chatgpt.site
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/bookproof-api.sn95wjq846.chatgpt.site/health.json

## Services

- [Bookproof — Fee-aware Polymarket Execution Quote](https://www.zero.xyz/c/bookproof-fee-aware-polymarket-execution-quote-e1e274d1/llms.txt): $0.015/call via x402. Returns read-only Polymarket order book depth, spread, taker fees, and VWAP-based execution quote for a given market outcome and USD budget
- [Bookproof — Polymarket Market Health & Order Book Intelligence](https://www.zero.xyz/c/bookproof-polymarket-market-health-order-book-intelligence-6d1131d9/llms.txt): $0.005/call via x402. Returns real-time Polymarket order book depth, spread, fees, freshness, and executable VWAP data for a given prediction market.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)