Quicken Premier — personal finance manager with budgeting, investment tracking and bill payment reminders.

A diaspora remittance super-app on Stellar. Send money home and pay the actual bill — rent, school fees, utilities — directly to registered billers in seconds for ~$0.01. No cash that gets lost on the way. Walletless recipients supported via claimable voucher links

Bluevine APIs.json profile

API and integration profile for Bill.

Rho — finance platform (banking + AP + spend) for businesses

Melio APIs.json profile

Heartland Payment Systems is a payment processing company offering payroll, customer engagement, point-of-sale, and other business solutions to merchants across the United States. Heartland is now a brand of Global Payments, and developer resources for Heartland integrations are published through the Global Payments developer portal.

API Evangelist profile of Pinwheel — employment + income data API (direct deposit switching, income verification)

API Evangelist profile of Atomic — income and payroll data API for direct deposit and paycheck linking

Chipper Cash — pan-African cross-border money transfer + crypto + investing

Stori — Mexican neobank for financial inclusion

Ramp is a finance automation platform that combines corporate cards, expense management, accounts payable, vendor management, and accounting integrations into a single product.

API and integration profile for Expensify.

Brex is the first fully unified spend platform with global corporate cards, expense management, reimbursements, travel, and bill pay. Brex makes it easy for finance teams to control all of their spend, all in one place. Using the Brex API, you can power your internal tools and create custom workflows.

Online Bill Pay Simulator

Highline — embedded payroll-deduction payment infrastructure