
API Driven Banking
Designing Flexible Financial Platforms
By Shane Larson
About This Book
Banking infrastructure built for 1995 cannot compete in 2025. Most of it is still trying.
The institutions winning the next decade of financial services aren't winning on brand, branch count, or balance sheet size. They're winning on architecture — the ability to launch new products in weeks instead of quarters, integrate with fintech partners without multi-year projects, and deliver the seamless digital experiences customers now take for granted everywhere else.
The difference, in almost every case, comes down to APIs.
API-Driven Banking is a practical guide for financial institutions making the shift to API-centric architecture — not as a theoretical exercise, but as a working blueprint for designing, building, and maintaining financial platforms that can actually move at the speed the market demands.
What's covered:
- Core banking API design — the foundational patterns that determine whether your platform scales or becomes the next legacy problem
- Mobile and digital integration — connecting customer-facing products to back-end systems without brittle point-to-point dependencies
- Open banking and partner ecosystems — how to expose capabilities to third parties securely and profitably
- Security and compliance architecture — building regulatory requirements into the platform rather than bolting them on afterward
- Emerging technology integration — designing for flexibility so today's architecture doesn't become tomorrow's constraint
Whether you're a developer building the systems, an architect designing the platform, or an executive trying to understand why this transformation is harder than it looks — this book gives you a clear, practical framework for where the industry is going and what it takes to get there.
The banks that survive the next decade won't be the ones that digitized. They'll be the ones that rebuilt for flexibility.
This is how you do that.
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