What is x402?
X402 is an internet-native payments protocol built to simplify how digital payments are made. Built around the HTTP 402 status code, x402 standardizes how users and merchants can pay and get paid for web services, while simplifying complexities within legacy payment rails and web infrastructure. Connect your agent to paid resources, build new ways to monetize your APIs, and discover new services on x402.
Ecosystem
Corbits
Platforms any API or data endpoint for pay-per-use via the x402 standard
PayAI
Solana facilitator for x402 payments enabling microtransactions and an AI-agent marketplace to transact autonomously
X402scan
Open-source explorer for the x402 ecosystem that tracks servers, transactions and resource usage across networks
Crossmint
Wallet and payment infrastructure provider integrating x402 to enable agent and human payments using stablecoins
x402 Tools
Explore turnkey Solana products for x402.