AI Expands Banks’ Options for Modernizing Legacy Cores
AI agents connect banks’ old systems to new apps without replacing them.
In brief
AI agents connect banks’ old systems to new apps without replacing them. AI agents access legacy banking systems via APIs, MCP, and employee interfaces to modernize without full core replacement. Originally reported by Pymnts.
AI agents reach bank systems
AI agents access banking systems through apis, mcp connections and employee interfaces.
95% of banks use ai tools
95 percent of financial services firms deploy ai in data and technology functions.
MCP enables ai access

mcp servers present approved banking functions to ai agents as tools.
AI handles legacy code
ai agents migrate cobol and other legacy code through computer use interfaces.
Banks face integration challenges
25 percent of banks use ai for api orchestration, but data quality hinders progress.
AI changes system economics
ai agents reduce integration work while banks control access to legacy systems.
The big picture
AI agents access legacy banking systems via APIs, MCP, and employee interfaces to modernize without full core replacement.


