>_ Documentation

402.md

Payment infrastructure for the agentic web. Accept USDC payments from AI agents and humans via the x402 protocol on Base.

For Sellers

Accept USDC payments on any website or API. Drop-in checkout widget and server-side middleware.

Checkout Widget →API Gateway →

For Agents

Give your AI agent a USDC wallet. Discover, pay for, and use any 402.md service programmatically.

Agent SDK →MCP Tools →
Read the Docs