Skip to main contentWhat you will learn
- Core building blocks (
client, middleware, facilitator )
- Supported networks and payment schemes
- Where to find detailed API references for each package
Prerequisites
- Node.js 18 or later (LTS recommended)
- Access to the x402 documentation
- Wallet credentials for the networks you plan to support (Solana or EVM)
Next steps
- If you are building payment-capable agents, continue to
api/architecture.
- If you want to see how on-chain settlements happen, review the
payment flow.
- Non-developers can skim the companion page
Not a developer? for high-level context.
