Coinbase Commerce (x402)
Crypto payment protocol enabling autonomous AI agents to transact with stablecoins in under 400ms
$0.00025 per transaction
Transaction-based
AI Agent Developers, Web3 Commerce, Micropayment Services
2-4 weeks
About
Coinbase Commerce with x402 protocol represents the future of autonomous agent payments through instant stablecoin transactions over HTTP. Launched in May 2025, x402 enables AI agents to pay other agents, monetize their own services, and handle micropayments automatically—all with fees as low as $0.00025 and settlement under 400ms on Base. The protocol has achieved explosive growth with 10,780% transaction increase in one month, nearly 500,000 transactions in a week, and integration into Google's Agentic Payments Protocol (AP2). The x402 Bazaar provides free listing where services set their own per-API-call prices, creating a low-friction, pay-per-use payment model ideal for agent-driven scenarios. Coinbase and Cloudflare are launching the x402 Foundation to establish it as the universal standard for AI-driven payments.
Key Features
Use Cases
- •Enabling autonomous AI agents to pay for services without human approval
- •Building micropayment infrastructure for agent API calls and services
- •Creating pay-per-use models for AI agent marketplaces
Integration & Technical Details
Provided by Coinbase • Added December 2025