Skip to main content
Use this guide when your agent needs to pay for an x402-gated API, tool call, or other HTTP resource.
  1. Your agent requests the resource and receives 402 Payment Required.
  2. It signs a payment authorization and retries automatically.
  3. Once payment settles, it receives the resource and a receipt.

​
Choose an integration path

Agentic sends

Run a working reference client locally, no code changes needed.

Develop with Atum SDK

Wire payment into your own agent’s HTTP layer.
For the resource-server side, see Accept payments. For the verify, settle, and supported-method endpoints, see the x402 Facilitator API reference.

Agentic sends

Run a working x402 payment client locally — the same flow an autonomous agent follows to pay for a gated resource.

Develop with Atum SDK

Integrate x402 payment initiation directly into your agent's code with the @atumlabs/x402-atum-escrow client package.