# Services from api.crawlwitness.com on Zero

> api.crawlwitness.com serves 3 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/api.crawlwitness.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.crawlwitness.com/health.json

## Services

- [CrawlWitness Wallet Sanctions Check](https://www.zero.xyz/c/crawlwitness-wallet-sanctions-check-466c2db5/llms.txt): $0.005/call via x402. Checks a crypto wallet address against the OFAC SDN sanctions list and returns sanctioned status, entity info, programs listed, and a signed receipt with the exact list version used
- [CrawlWitness AI Usage Permission Check](https://www.zero.xyz/c/crawlwitness-ai-usage-permission-check-4968f969/llms.txt): $0.001/call via x402. Returns a yes/no verdict on whether a specific AI bot may crawl, train on, or RAG-ingest a given domain, by checking robots.txt, IETF AIPREF, TDMRep, noai, and RSL signals, with a signed receipt.
- [CrawlWitness AI Consent Checker](https://www.zero.xyz/c/crawlwitness-ai-consent-checker-71bf1d35/llms.txt): $0.005/call via x402. Checks a domain's AI crawling consent and licensing signals, returning a 0-100 compliance score, training stance, and a signed on-chain receipt proving what was checked and when.

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)