Spring AI - MCP Server

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-bom</artifactId>
            <version>2.0.0</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependency>
    <groupId>org.springframework.ai</groupId>
    <artifactId>spring-ai-starter-mcp-server-webmvc</artifactId>
</dependency>

spring:
  ai:
    mcp:
      server:
        name: todo-mcp-server
        version: 1.0.0
        type: SYNC
        protocol: STREAMABLE

server:
  port: 8081

@Service
public class TodoTools {

    private final List<String> items = new CopyOnWriteArrayList<>();

    @McpTool(description = "Add an item to the todo list")
    public String addTodo(
        @McpToolParam(
            description = "The text of the todo item to add",
            required = true)
        String item) {

        if (item == null || item.isBlank()) {
            throw new IllegalArgumentException("The todo element cannot be empty.");
        }

        String normalizedItem = item.trim();
        items.add(normalizedItem);

        return "Added: " + normalizedItem;
    }

    @McpTool(description = "List all todo items")
    public List<String> listTodos() {
        return items.isEmpty()
            ? List.of("The list is empty")
            : List.copyOf(items);
    }
}