How to Build an AI Agent with x402 Payments

Autonomous AI agents need a way to pay for resources without human intervention. The x402 protocol lets agents negotiate prices and prove payments over standard HTTP.

The flow

1. Request a generation and receive 402 Payment Required.
2. Decode the challenge to get the price.
3. Sign a CSPR transfer with the Casper JS SDK.
4. Resend the request with the signed deploy.
5. Receive the generated asset.