AIOT x402
Accept USDC on BSC through the x402 protocol. HTTP-native payments, gasless for the payer, cryptographically final on-chain — for developers, merchants, and AI agents alike.
Integrate the @aiot/shopify-x402 npm SDK into your Node.js backend. Express middleware, session management, error handling.
Install the AIOT Payments app on your Shopify store. Configure your wallet. Accept USDC at checkout.
Install a skill to pay for x402-gated endpoints or build an x402 merchant backend autonomously.
What you can build
- A paywalled API that any HTTP client — including autonomous AI agents — can pay for without human intervention.
- A Shopify store that accepts USDC at checkout in under 5 minutes.
- An AI agent that pays for paywalled endpoints on its own, with a cryptographic audit trail for every transaction.
Why x402?
The x402 protocol turns HTTP 402 Payment Required into a first-class payment primitive. The payer signs a Permit2 authorization off-chain, the facilitator verifies and settles on-chain, and USDC lands in the merchant’s wallet in seconds. No checkout forms, no chargebacks, no card networks.
AIOT x402 runs on BNB Smart Chain for 2-second finality and sub-cent gas, paid by the facilitator so the customer signs a single message and never touches a wallet popup.
Get started
- Developer Quickstart — integrate the
@aiot/shopify-x402SDK into an Express backend in five minutes - Merchant Quickstart — install the Shopify app and configure your settlement wallet
- AI Agent Quickstart — install the
x402-payskill so your agent can settle invoices autonomously
What’s in these docs?
- Quickstart — shortest path from zero to a working payment, for each audience
- Guides — narrative walkthroughs of every SDK subsystem and every merchant workflow
- Reference — auto-generated TypeDoc for every exported class, type, and error
- For AI Agents — installable skills that let agents interact with x402 without human hand-holding