---
title: "What Is x402? How AI Agents Pay With Crypto"
date: 2026-11-04
source: http://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6aeb84415ac842f2bd45b6073d1d6ef1&url=https%3a%2f%2fdecrypt.co%2fresources%2fwhat-is-x402-how-ai-agents-pay-with-crypto&c=926605297952725781&mkt=en-us
description: "Coinbase's x402 protocol puts the web's long-unused 402 code to work so AI agents and apps can pay for APIs and data in stablecoins like USDC."
---

# What Is x402? How AI Agents Pay With Crypto

Coinbase's x402 protocol puts the web's long-unused 402 code to work so AI agents and apps can pay for APIs and data in stablecoins like USDC.

*Published: 2026-11-04*