x402 is an open, neutral standard for internet-native payments, designed to facilitate seamless transactions between clients and servers. It eliminates the need for high friction credit card systems and offers a more efficient, cost-effective, and user-friendly payment solution. x402 is built-in to existing HTTP requests, providing a straightforward way to require payment for incoming requests with minimal code.
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Columns5| Company | Markets | New markets | Momentum | Activity | Expansion score |
|---|---|---|---|---|---|
 X402You | 0 | 0 | — | 0 | 0 |
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Erik Reppel of Coinbase develops x402 protocol to enable easy money transfers online, integrating AI and crypto for improved internet commerce.
SUPERHIGHWAY launches web-search API enabling AI agents to autonomously pay $0.001 per search using USDC on Base via x402 protocol, eliminating human involvement.
Ripple launched XRPL AI Starter Kit to help developers build agentic payment applications on XRP Ledger blockchain, supporting x402 protocol, XRP token, and RLUSD stablecoin transactions.
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