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White paper

Engineering a Real-Time, AI-Ready Bank Around Legacy Infrastructure

Your core banking platform still runs the bank. But it shouldn't dictate how fast the rest of the bank moves. As customer expectations shift to real-time experiences and AI moves from experimentation toward autonomous action, legacy cores create a growing architectural constraint. 

Replacing them, however, can mean years of transformation, significant cost, and operational risk. This whitepaper presents a different path: contain the core, modernize around it, and build an AI-ready banking architecture without a disruptive core replacement. 

Designed for CIOs, CDOs, and Enterprise Architects, it provides a practical blueprint for building a real-time abstraction layer around existing core systems, turning banking capabilities into reusable, context-aware services while introducing the identity, security, governance, and control required for AI agents.

Key topics covered

  • Decouple digital channels and AI workloads from legacy core constraints
  • Create real-time, reusable banking services using APIs, events, and industry standards
  • Reduce the cost and complexity of repeatedly integrating with the core
  • Give AI agents governed access to banking capabilities without exposing the underlying ledger
  • Move toward an agentic banking architecture incrementally, without betting on a multi-year core replacement

Author

Seshika Fernando

Vice President/Field CTO, WSO2