# Services from ztaiff.x420.dev on Zero

> ztaiff.x420.dev 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/ztaiff.x420.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/ztaiff.x420.dev/health.json

## Services

- [ztaiff Token Purchase - 1 USDC (x420.dev)](https://www.zero.xyz/c/ztaiff-token-purchase-1-usdc-x420-dev-4d4a9111/llms.txt): $1/call via x402. Purchases 1 USDC worth of ztaiff tokens (0x9fCF9Fc287f40e7cB8f0EB56CeC9950921831B07) on behalf of the caller and returns transaction details
- [ztaiff Token Purchase - $5 USDC (x420.dev)](https://www.zero.xyz/c/ztaiff-token-purchase-5-usdc-x420-dev-41306224/llms.txt): $5/call via x402. Purchases $5 USDC worth of ztaiff tokens (contract 0x9fCF9Fc287f40e7cB8f0EB56CeC9950921831B07) and returns transaction details

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)