- Stripe - is the best software platform for running an internet business. We handle billions of dollars every year for forward-thinking businesses around the world.
- adyen - A single payments platform to accept payments anywhere, on any device
- wirize.com - is a ready-made checkout payment built on Stripe. Collect one-time payments and sell your digital services in minutes (no code or website required).
- ElioPay - By connecting to Stripe, PayPal and PayBear you can accept credit and debit cards in 135+ currencies, PayPal and 7 cryptocurrencies including Bitcoin, Litecoin and Ethereum (with more to come). [We don't actually process the payments as we connect to Stripe, PayPal and Paybear]
- How to Accept Payments Online If You Can’t Use Stripe? -- two payment systems that could solve this problem: Gumroad and Paddle.
- Show HN: Trolley lets you take payments from your static site --> Trolley
Payment Gateway Comparison: Guide to Ecommerce Payments compares PayPal, Stripe, Square, BrainTree, WePay, Authorize.net, 2CheckOut, MangoPay, WorldPay, Dwolla.