---
title: "What Is x402? How AI Agents Pay With Crypto"
url: https://thecoingazette.com/what-is-x402-how-ai-agents-pay-with-crypto/
date: 2026-11-04
modified: 2026-11-04
lang: en
author: "Coin Gazette Editorial"
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."
categories:
  - "Crypto News"
tags:
  - "crypto"
  - "cryptocurrencies"
  - "Defi"
  - "Market Trends"
  - "News"
word_count: 26
---

# 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.