When Tim Berners-Lee and his team at CERN formalized the Hypertext Transfer Protocol in the early 1990s, they reserved HTTP status code 402 with the designation “Payment Required.” The 1996 HTTP/1.0 ...
Built on the long-unused HTTP 402 status code, x402 turns web requests into payment channels using stablecoins, particularly USDC, which Circle and Coinbase developed. This article explains x402, how ...
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