Spring AI + OpenRouter Integration Example

This project demonstrates how to easily integrate OpenRouter with Spring AI for simple chat-based interactions using a REST API.

✨ Features

• Minimal Spring Boot setup using spring-ai-openai-spring-boot-starter
• Preconfigured for use with OpenRouter-compatible models (e.g. deepseek-chat-v3)
• Just plug in your API key and start interacting
• REST endpoint ready for testing or integration

🔧 Requirements

• Java 17+
• Maven (but you can easily use Gradle instead)
• An OpenRouter API key

🚀 Getting Started

Insert your OpenRouter API key:

Open src/main/resources/application.yml and replace {Api-Key} with your actual API key:

   spring:
      ai:
         openai:
            api-key: your-api-key-here
            base-url: https://openrouter.ai/api
            chat:
               options:
                  model: deepseek/deepseek-chat-v3-0324:free

🧩 Project Structure

• Main.java – Spring Boot application entry point
• Config.java – Configures the Spring AI ChatClient
• Controller.java – REST controller that handles prompt requests
• TextFromUser.java – Simple DTO for user input
• application.yml – Configuration file for connecting to OpenRouter