# MCP Java SDK – Build Model Context Protocol servers in Java

> Source: <https://dev.to/6000fish/mcp-java-sdk-build-model-context-protocol-servers-in-java-in6>
> Published: 2026-06-12 03:29:00+00:00

Hi HN,

I built an open-source Java SDK for building Model Context Protocol servers:

[https://github.com/6000fish/mcp-java](https://github.com/6000fish/mcp-java)

It is intended for Java developers who want to expose tools, resources, or prompts to MCP-compatible agents without implementing the protocol plumbing from scratch.

The project includes:

The SDK is available on Maven Central:

```
<dependency>
    <groupId>io.github.6000fish</groupId>
    <artifactId>mcp-sdk</artifactId>
    <version>0.1.1</version>
</dependency>

<dependency>
    <groupId>io.github.6000fish</groupId>
    <artifactId>mcp-spring-boot-starter</artifactId>
    <version>0.1.1</version>
</dependency>
```

The MySQL and Redis servers are local stdio MCP servers, because database/cache connectors are usually safer to run inside the user's own environment instead of exposing credentials to a hosted remote endpoint.

GitHub:

[https://github.com/6000fish/mcp-java](https://github.com/6000fish/mcp-java)

Release:

[https://github.com/6000fish/mcp-java/releases/tag/v0.1.1](https://github.com/6000fish/mcp-java/releases/tag/v0.1.1)

Feedback is welcome.