I want to work on a project that allows for easily sharing paywalled links for the price of $1. It seems Stripe will take 30 cents (plus transaction fees) on every dollar processed, and PayPal will take 49 cents, for credit card payments. Are there any cheaper alternatives out there?I considered a workaround to use the Venmo API because it seems they only charge 3% for credit card processing. But are there any significant cons I should be aware of before building a SaaS on top of Venmo to facilitate high volumes of $1 payments?