The author details a migration from x402 v1 to v2, noting that v2 is a significant departure rather than a simple upgrade. Key changes include a shift to the @x402 npm scope, the introduction of CAIP-2 for networks, and the relocation of payment challenges from the JSON body to the PAYMENT-REQUIRED header. The article also highlights new client-side scheme handling and the integration of Bazaar discovery for paid routes. AI
IMPACT Provides a technical guide for developers migrating to the x402 protocol v2, detailing changes and potential pitfalls.
RANK_REASON This is a technical guide on migrating a specific software protocol, not a new release or significant industry event.
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