Papaya lets PSPs, fintechs, and SaaS platforms accept stablecoins as a recurring payment method without building settlement infrastructure from scratch. Merchants get one-time customer authorization then pull payments automatically on any schedule - daily, weekly, or monthly - without repeat wallet signatures. Our O(1) aggregation architecture settles unlimited recurring payment collections in a single onchain transaction, so gas cost stays flat regardless of how many subscribers a merchant has. This makes stablecoin billing viable at scale in a way that per-transaction models are not. Papaya is non-custodial: funds move directly between customer and merchant wallets; Papaya never holds or controls user funds. This lets partners add a stablecoin payment rail alongside existing card and bank rails while keeping their own compliance, KYC, and fiat conversion flow untouched.