MiniPay: Charging per Plick on the Web

Abstract Many promising Web applications could benefit from a payment mechanism for small amounts (micro-payments). Payment by credit cards, which is the common method for on-line consumer purchasing, involve substantial per-transaction fee and delay, and are therefore inappropriate for micro-payments. We present MiniPay, a simple system for supporting micro-payments. MiniPay features low cost, negligible delay, natural user interface, scalable design, support for multiple currencies, and high security — including non-repudiation, overspending prevention, and protection against denial of service. MiniPay is currently being piloted with several potential providers.

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