P2Flux

P2Flux is privacy-first, non-custodial USDC payment infrastructure live on Base Mainnet. It runs underneath a merchant's existing checkout instead of becoming the merchant's account, wallet, or customer database, without merchant or buyer accounts and without receiving customer profiles, order histories, or product details.

Buyers and merchants do not create P2Flux accounts, and P2Flux does not require identity profiles, customer databases, order histories, or product catalog data. It processes only the limited technical terms required to execute and verify a payment, such as the recipient wallet, amount, payment or subscription identifier, billing period, and on-chain transaction data.

For one-time payments, the merchant's share and P2Flux's 1% fee split atomically in one blockchain transaction, settling directly to the merchant-controlled wallet with no P2Flux balance or payout step. For subscriptions, the customer approves the terms once, fixing the recipient, amount, billing frequency, and any expiry, and renewals then execute automatically on each billing date. Customers can cancel or revoke the authorization from their own wallet at any time. P2Flux also supports merchant-initiated full or partial refunds to the original payer wallet.

Developers integrate through a REST API or the official JavaScript, TypeScript, and PHP SDKs, with native USDC on Base Mainnet and an equivalent Base Sepolia test environment. The immutable payment and recurring-payment contracts are public and source-verified, hold no balance between transactions, and contain no owner function capable of moving merchant funds. One-time payments cost 1%; subscription renewals cost 2% + 0.10 USDC.