Compared to v1, x402 v2 has added the following business scenarios: High-frequency/continuous use (such as AI inference, streaming services): sessions can be reused after one purchase/verification, avoiding payment for each request Subscription/passes: expanded from 'pay-per-use' to models like 'monthly/daily/unlimited within session validity' API marketplace and multi-tenant billing: the payment recipient and price can be dynamically decided for each request, supporting platform revenue sharing and multiple participants sharing At the same time covering multiple chains + fiat payment: the same set of interfaces can accept both on-chain stablecoins and traditional payments like bank transfers/cards, covering more users Automatic service discovery: services publish their own prices and capabilities, aggregators/agents automatically index updates, without the need for manual directory maintenance$BTC $XRP