# Services from x402-taxrate.onrender.com on Zero

> x402-taxrate.onrender.com 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/x402-taxrate.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-taxrate.onrender.com/health.json

## Services

- [TaxRate US](https://www.zero.xyz/c/taxrate-us-e1b34da6/llms.txt): $0.03/call via x402. Look up US sales tax rates by ZIP code, state, or address, with economic-nexus reference data at state granularity.
- [TaxRate US – Economic Nexus Lookup](https://www.zero.xyz/c/taxrate-us-economic-nexus-lookup-78d15fee/llms.txt): $0.01/call via x402. Returns US sales-tax rates and economic-nexus thresholds for a given state (or all states) to help determine tax obligations.

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)