Integrating Anthropic Claude AI with Spring Boot: A Complete Guide

Explanation:

  • Postman Client: Represents the user sending HTTP requests.
  • Spring Boot Application: Manages the REST endpoint and processes the AI request.
  • AIService: Interacts with the Anthropic Claude API.
  • Anthropic Claude API: Generates the AI response.

To integrate Anthropic Claude AI with a Spring Boot application, you would typically follow these steps:

Step 1. Setup Spring Boot Application

Make sure you have a Spring Boot project with the necessary dependencies. You can generate a Spring Boot project using Spring Initializr.

  • Dependencies:
    • Spring Web for creating REST endpoints.
    • Spring Anthropic Claude Spring AI support for Anthropic Claude AI models.
Complete pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.4.1</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>21</java.version>
		<spring-ai.version>1.0.0-M4</spring-ai.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.ai</groupId>
			<artifactId>spring-ai-anthropic-spring-boot-starter</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.ai</groupId>
				<artifactId>spring-ai-bom</artifactId>
				<version>${spring-ai.version}</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
	</repositories>

</project>

Step 2: Configure the Application

You need to sign up or log into Anthropic and generate an API key. Here's the general process:

  • Visit the Anthropic API documentation.
  • Sign up or log into your account.
  • Generate an API key to access their Claude models (e.g., Claude 1, Claude 2, etc.).

Next, you will need to configure your application by specifying the necessary properties in application.properties or application.yml. For example:

spring.ai.anthropic.api-key=YOUR_API_KEY
spring.ai.anthropic.model=your-chosen-model

Replace YOUR_API_KEY with your actual Anthropic API key and your-chosen-model with the appropriate model name.

Step 3: Create a Service to Interact with the AI

You can create a service that uses the AI functionality. For example, here's a simple AIService class that interacts with the Anthropic API:

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.ai.anthropic.AnthropicService;
import org.springframework.ai.anthropic.model.CompletionRequest;
import org.springframework.ai.anthropic.model.CompletionResponse;

@Service
public class AIService {

    private final AnthropicService anthropicService;

    @Autowired
    public AIService(AnthropicService anthropicService) {
        this.anthropicService = anthropicService;
    }

    public String getAIResponse(String prompt) {
        CompletionRequest request = new CompletionRequest();
        request.setPrompt(prompt);
        request.setMaxTokens(150);  // Adjust as necessary

        CompletionResponse response = anthropicService.completions(request);
        return response.getText();
    }
}

Step 4: Use the Service in a Controller

Create a REST controller to expose an endpoint that uses your AIService.

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class AIController {

    private final AIService aiService;

    @Autowired
    public AIController(AIService aiService) {
        this.aiService = aiService;
    }

    @GetMapping("/ask-ai")
    public String askAI(@RequestParam String question) {
        return aiService.getAIResponse(question);
    }
}

Step 5: Run the Application

Now, when you run your Spring Boot application, you can send a request to /ask-ai?question=your-question-here to get a response from the Anthropic AI model.

Step 6: Test the Application

  1. Use Postman, curl, or a browser:
    curl "http://localhost:8080/ask-ai?question=What+is+the+capital+of+France%3F"
  2. Expected response:
    {
    "response": "The capital of France is Paris."
}

Note:

Make sure you have the correct version of the starter and replace placeholder values such as YOUR_VERSION, YOUR_API_KEY, and your-chosen-model with actual values depending on the model you are using and the version of the starter.


To access the source code or download the project, visit the GitHub repository:

🔗 GitHub - Spring AI Demo Project

Feel free to clone or fork the repository to get started quickly!


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