The Coinbase-backed x402 V2 protocol upgrades to allow multi-chain routing, wallet sessions, and discovery for HTTP 402 payments across crypto and traditional payment rails. The release standardizes network and asset IDs, introduces wallet-based sessions, and allows for easy addition of new chains and assets. The protocol has processed over 100 million payments since its launch six months ago and is supported by major companies like Cloudflare, Google, and Visa.

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