Stripe iOS SDK - Accept both Apple Pay and credit card payments easily on iOS
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
The Brex API - Brex credit cards and business accounts help startups scale fast, and Brex’s API can make you even faster.
Open.money - Open is a connected banking platform for business payments that simplifies the process of sending, receiving, and reconciling payments for businesses.
Lendflow API - The Lendflow API allows you to embed lending services into your product so you can increase engagement, improve retention and expand revenue per user.
Razorpay - Payment gateway solution for India with robust, developer friendly API and simple economic pricing.