# Services from audit-tools.ai on Zero

> audit-tools.ai 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/audit-tools.ai
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/audit-tools.ai/health.json

## Services

- [audit-tools.ai Actor Evaluator](https://www.zero.xyz/c/audit-tools-ai-actor-evaluator-989b9ea2/llms.txt): $1/call via x402. Evaluates an Apify actor's quality by scoring it against up to 23 built-in and/or custom criteria, returning per-criterion evidence and a verdict.
- [Apify Actor Preflight](https://www.zero.xyz/c/apify-actor-preflight-8ce6eec6/llms.txt): $0.02/call via x402. Scores an Apify actor on pricing, maintenance, reliability, docs, and output schema from public metadata — returning a verdict and evidence JSON before you run it.

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)