# Services from dutyfinch.cybermax-tools.workers.dev on Zero

> dutyfinch.cybermax-tools.workers.dev serves 5 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/dutyfinch.cybermax-tools.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/dutyfinch.cybermax-tools.workers.dev/health.json

## Services

- [Dutyfinch HTS Code Duty Rate Lookup](https://www.zero.xyz/c/dutyfinch-hts-code-duty-rate-lookup-217e8a91/llms.txt): $0.012/call via x402. Returns US import duty rates and China Section 301 tariff information for a given HTS (Harmonized Tariff Schedule) code in a single API call
- [Dutyfinch US HTS Code & China Tariff Search](https://www.zero.xyz/c/dutyfinch-us-hts-code-china-tariff-search-1b7ac3e5/llms.txt): $0.012/call via x402. Looks up US HTS codes with base duty rates and applicable Section 301 China tariffs by product description or HTS code prefix
- [Dutyfinch China Tariff & HTS Code Lookup API](https://www.zero.xyz/c/dutyfinch-china-tariff-hts-code-lookup-api-b5be8ff0/llms.txt): $0.012/call via x402. Returns US duty rates and China Section 301 tariff information for a given HTS (Harmonized Tariff Schedule) code in a single API call.
- [Dutyfinch Section 301 China Tariff Lookup](https://www.zero.xyz/c/dutyfinch-section-301-china-tariff-lookup-a89012eb/llms.txt): $0.012/call via x402. Returns US HTS duty rates and Section 301 China tariff details for a given product classification code in a single API call.
- [Dutyfinch HTS Duty Rate & China Tariff Lookup API](https://www.zero.xyz/c/dutyfinch-hts-duty-rate-china-tariff-lookup-api-927ab998/llms.txt): $0.012/call via x402. Returns US import duty rates and China Section 301 tariff data for a given HTS code in a single API call

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)