Gate any API behind on-chain token ownership using the standard HTTP 402 status code. Built for AI agents, bots, and any programmatic client that needs to authenticate and pay for services.
Overview
How it works, why it matters, quickstart code
Full Specification
Complete protocol spec, security considerations, x402 comparison
Code Snippets
Server-side verification snippets: signatures, ownership checks, nonces
Collection Recipesarrow-up-right
How to configure collections for auth patterns: soulbound, revocable, 2FA, bans
Last updated 5 days ago
