TrueLayer - Simple Bank APIs to access real-time financial data

Boss Insights - Providing Business Lenders Their Clients' Financial Data...In Minutes

Plaid - Infrastructure that powers financial technology by enabling applications to connect with users' bank accounts.

Codat - Codat works with lenders, banks, insurers and software providers to provide integrations with the accounting and other financial softwares.

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.

Operator.io - The easiest way for developers to integrate financial apps like Quickbooks Online, Shopify, and Amazon Seller Central into their products.