Wirize - Payment checkout for freelancers
TillyPay - Recurring & single payment links, powered by Stripe.
ACH payments with Stripe - Accept bank payments with a few lines of code.
YouPay - The wishlist for everyone Life's too short for bad gifts. Share what you want, and let someone else pay, without sharing your personal details. Plus, it's absolutely FREE!
Giftbit Payment API - Stripe for gift cards
PayRequest - SImple Fast Payment Links