MPowered, the lender behind the One Day Mortgage, has become the first UK mortgage provider to expose its affordability calculator to large language models (LLMs), allowing AI systems to access live lending criteria and return tailored borrowing estimates in real time.
The move marks a shift in how consumers and machines interact with financial products, as AI assistants increasingly replace traditional browsing.
Rather than relying on static websites or screen scraping, LLMs can now access MPowered’s calculator directly via a Model Context Protocol (MCP) server.
Jake Atkinson, director of growth at MPowered, said: “We’re not just optimising for mobile or web anymore, we’re actively building for an LLM-first internet.
“This is about making sure that when your AI assistant goes looking for mortgage information, it can talk directly to the source. Safely, accurately, and in context.”
The calculator, developed in partnership with MQube Technology, allows AI agents to engage securely with MPowered’s live affordability criteria, ensuring accurate and context-aware results.
Stelios Constantinidis, director of AI at MPowered, said: “The MCP is rapidly becoming the standard for how models safely interface with live, trusted data sources.”
He added that the integration “sets a new precedent for how financial institutions can surface core functionality to AI, while maintaining full control over data integrity and context.”
MPowered confirmed that this is the first of several MCP integrations it plans to introduce as part of a wider AI strategy.
