Increase

Increase is a banking and payments infrastructure platform that provides direct API access to core money movement, ACH, wires, real-time payments, checks, cards, and accounts, with a strong focus on reliability, correctness, and transparency. Built for engineering teams, it exposes low-level, well-documented APIs and clear operational visibility so fintechs and businesses can move money and build financial products on dependable infrastructure.

Increase is used by fintechs, marketplaces, and businesses that need reliable, direct access to payment rails and banking primitives rather than heavily abstracted products. Its emphasis on reliability and correctness suits mission-critical money movement, its clear APIs and documentation appeal to engineers, and its coverage spans major US payment rails. For teams building on dependable banking and payments infrastructure, Increase is a respected platform.