LendingTree Builds Multi-Agent Mortgage Assistant on Amazon Bedrock
AWS ML Blog · rss · 2026-08-06
The AWS Machine Learning Blog detailed how LendingTree used Amazon Bedrock to build a multi-agent mortgage assistant, helping consumers navigate complex home-buying decisions.
- Core Architecture: The system features three independent AI agents (one Supervisor and two specialized Workers) coordinated via LangGraph and MCP. The Supervisor handles intent analysis and execution planning, while the specialized workers manage mortgage education and personalized loan matching.
- Safety & Compliance: All inputs and outputs pass through Amazon Bedrock Guardrails for content filtering and PII redaction. An LLM-based safety classifier enforces conversational policies concurrently, meeting the strict regulatory requirements of the financial industry.
- Multi-Model Strategy: The Supervisor automatically selects between models based on task complexity—using Amazon Nova Pro for complex reasoning and Amazon Nova Lite for lightweight conversational classification—balancing reliability with cost.
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