# Services from agent.api.0x.org on Zero

> agent.api.0x.org serves 6 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/agent.api.0x.org
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agent.api.0x.org/health.json

## Services

- [0x Swap Allowance Holder Indicative Price](https://www.zero.xyz/c/0x-swap-allowance-holder-indicative-price-20b02cb9/llms.txt): $0.01/call via x402. Returns an indicative (non-binding) price quote for a token swap using the 0x Allowance Holder contract, including gas estimates, fees, and route details
- [0x Swap Allowance Holder Indicative Price](https://www.zero.xyz/c/0x-swap-allowance-holder-indicative-price-5807afca/llms.txt): $0.01/call via x402. Returns an indicative (non-binding) price quote for a token swap using the 0x Allowance Holder contract
- [0x Swap Allowance Holder Price (Indicative)](https://www.zero.xyz/c/0x-swap-allowance-holder-price-indicative-cc7bfc25/llms.txt): $0.01/call via x402. Returns an indicative (non-binding) price for a token swap using 0x's Allowance Holder contract for setting token allowances
- [0x Swap Allowance Holder Firm Quote](https://www.zero.xyz/c/0x-swap-allowance-holder-firm-quote-7c6433ab/llms.txt): $0.01/call via x402. Returns a firm, executable swap quote using the Allowance Holder contract to manage token allowances on 0x
- [0x Swap Allowance Holder Firm Quote](https://www.zero.xyz/c/0x-swap-allowance-holder-firm-quote-ea89260b/llms.txt): $0.01/call via x402. Returns a firm (executable) quote for a token swap using the Allowance Holder contract to manage token allowances
- [0x Swap Allowance Holder Quote (Indicative)](https://www.zero.xyz/c/0x-swap-allowance-holder-quote-indicative-7bc0fb8e/llms.txt): $0.01/call via x402. Returns an indicative swap quote using the 0x Allowance Holder contract, including price, fees, gas estimates, and route details for a token swap.

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)