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.

Business Banking APIs by Decentro - Perform any banking functions on top of corporate accounts

GoSolo - Smart business banking for SMEs in the UK

Embold.io - Peer Code Review

Striga - Embed crypto & banking infrastructure into your application

Mercury - Mercury is banking* for startups