Building Local AI Agents in Java with Tools4AI and Ollama: An Insurance Claims Use Case

Tools4AI is a 100% Java agentic AI framework that turns any annotated Java method into an AI-callable action. Ollama runs open models like Llama 3.1 and Phi-4 locally and exposes an OpenAI-compatible API. Point Tools4AI at http://localhost:11434/v1 and you get a fully offline, on-premise AI agent — no data ever leaves your network. In this tutorial we build an insurance claims triage agent that reads a claimant's free-text incident report, routes it to the right business action, extracts structured data, gates high-value payouts behind a human approval, and records a compliance audit trail. Who is this for? Java developers, solution architects, and engineering leaders in regulated industries (insurance, banking, healthcare) who want agentic AI without sending sensitive data to a third-party API . Table of Contents Why local AI agents matter for insurance Insurance runs on personally identifiable information (PII) : names, addresses, policy numbers, medical details, vehicle data, and loss descriptions. Sending that data to a hosted LLM API creates regulatory, contractual, and reputational risk. At the same time, claims teams are drowning in unstructured text — First Notice of Loss (FNOL) reports, adjuster notes, emails, and call transcripts. A local AI agent solves both problems at once: Data never leaves your premises. The model runs on your own hardware via Ollama. Deterministic business logic stays in Java. The LLM decides what to do; your audited, tested Java code decides how . Human-in-the-loop and audit trails are first-class, so you can satisfy compliance reviewers. That combination — private inference plus governed execution — is exactly what Tools4AI + Ollama gives you. What is Tools4AI? Tools4AI ( io.github.vishalmysore:tools4ai on Maven Central) is a lightweight, pure-Java agentic AI framework and ADK. Its core idea is simple and powerful: Annotate a Java class with @Agent and its methods with @Action . Tools4AI scans the classpath, and at runtime it maps