MCP cover image

该扩展程序使开发人员能够轻松实现MCP服务器功能。

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Quarkus Model Context Protocol (MCP) Server

All Contributors

Version

"Model Context Protocol (MCP) is an open protocol that enables seamless integration between LLM applications and external data sources and tools."

This extension provides declarative and programmatic APIs that enable developers to implement the MCP server features easily.

[!NOTE]
The LangChain4j project provides the MCP client functionality, either as a low-level programmatic API or as a full-fledged integration into AI-infused applications.

Get Started

Step #1

Add the following dependency to your POM file:

<dependency>
    <groupId>io.quarkiverse.mcp</groupId>
    <!-- use 'quarkus-mcp-server-stdio' if you want to use the STDIO transport instead of the HTTP/SSE transport -->
    <artifactId>quarkus-mcp-server-sse</artifactId>
    <version>${project-version}</version>
</dependency>

Step #2

Add server features (prompts, resources and tools) represented by annotated business methods of CDI beans.

import jakarta.inject.Inject;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

import io.quarkiverse.mcp.server.BlobResourceContents;
import io.quarkiverse.mcp.server.Prompt;
import io.quarkiverse.mcp.server.PromptArg;
import io.quarkiverse.mcp.server.PromptMessage;

import io.quarkiverse.mcp.server.Tool;
import io.quarkiverse.mcp.server.Resource;
import io.quarkiverse.mcp.server.TextContent;

// This class is automatically registered as a @Singleton CDI bean
public class ServerFeatures {

    @Inject
    CodeService codeService;

    @Tool(description = "Converts the string value to lower case")
    String toLowerCase(String value) {
        return value.toLowerCase();
    }

    @Prompt(name = "code_assist")
    PromptMessage codeAssist(@PromptArg(name = "lang") String language) {
        return PromptMessage.withUserRole(new TextContent(codeService.assist(language)));
    }

    @Resource(uri = "file:///project/alpha")
    BlobResourceContents alpha(RequestUri uri) throws IOException{
        return BlobResourceContents.create(uri.value(), Files.readAllBytes(Paths.ALPHA));
    }

}

Step #3

Run your Quarkus app and have fun!

Documentation

The full documentation is available at https://quarkiverse.github.io/quarkiverse-docs/quarkus-mcp-server/dev/index.html.

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Martin Kouba
Martin Kouba

💻 🚧
Georgios Andrianakis
Georgios Andrianakis

💻
Max Rydahl Andersen
Max Rydahl Andersen

💡
Rostislav Svoboda
Rostislav Svoboda

💻
George Gastaldi
George Gastaldi

🚇
Jan Martiska
Jan Martiska

📖
Ioannis Canellos
Ioannis Canellos

💻

This project follows the all-contributors specification. Contributions of any kind welcome!

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    Reviews

    3 (1)
    Avatar
    user_JG4VqwzF
    2025-04-17

    As a dedicated user of quarkus-mcp-server, I must say that this server offers a seamless experience for those working with Quarkus applications. Its integration is smooth, and the performance is impressive, making it a top choice for modern application servers. Kudos to the quarkiverse team for their excellent work on this project! Highly recommended for anyone in need of a reliable and efficient server solution.