// devtools · modelcontextprotocol/java-sdk

java-sdk

java-sdk é um projeto de ferramentas de desenvolvimento de código aberto de modelcontextprotocol (modelcontextprotocol/java-sdk no GitHub). Tem 3.723 estrelas no GitHub e 1.155 forks, é publicado sob a licença MIT e foi atualizado pela última vez no GitHub em 8 de outubro de 2026.

The official Java SDK for building Model Context Protocol servers and clients.

★ 3,7 mil estrelas⑂ 1,2 mil forksMITatualizado out 2026
▦ visual: o README deste projeto não inclui nenhuma captura incorporável,
então aqui vai um marcador. O guia abaixo está completo mesmo assim.
// dados do projeto

Dados do projeto

Estrelas no GitHub
3.723
Forks
1.155
Licença
MIT
Última atualização no GitHub
8 de outubro de 2026
Tipo de ficha
Guia de instalação completo
Site oficial
Official site
// como funciona

Como funciona

  1. Clarify your goal

    Decide the first concrete outcome you want from it, so you can pick the right example, template or mode instead of exploring everything at once.

  2. Get the project

    Clone the repository (or install the published package) and skim its README quick start for the requirements for your platform.

  3. Install and configure

    Run the documented install step and set any required configuration — such as provider keys, data sources or local services — before the first run.

  4. Run your first task

    Execute the smallest documented example end to end, confirm the output is what you expected, then adapt it to your real data or workflow.

// recursos

Por que as pessoas gostam tanto

Official MCP implementation

Servers and clients implementing the Model Context Protocol specification for the JVM.

Transport-agnostic design

JDK HttpClient client transport and Jakarta Servlet server transport in core; Spring transports available through Spring AI.

Reactive with a sync facade

Reactive Streams APIs powered by Reactor, plus a synchronous facade for blocking use cases.

Pluggable JSON

A JSON abstraction with Jackson shipped as the default implementation.

Pluggable authorisation

Hooks let servers plug in Spring Security, MicroProfile JWT or custom auth instead of a built-in system.

Conformance tested

Dedicated server, client and auth conformance test suites are part of the build.

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// execute você mesmo

Execute você mesmo

  1. Clone the repository

    Get the source so you can inspect, configure and run it locally.

    git clone https://github.com/modelcontextprotocol/java-sdk.git
    cd java-sdk
  2. Add the SDK to your project

    Follow the reference documentation for the Maven artifacts for MCP core/client/server, then build from source if contributing.

    git clone https://github.com/modelcontextprotocol/java-sdk.git
    cd java-sdk
    ./mvnw clean install -DskipTests
  3. Run the tests

    Verify a source build with the SDK's test suite.

    ./mvnw test
// casos de uso

O que você pode criar

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// perguntas frequentes

Perguntas frequentes

Who maintains java-sdk?

It is maintained by modelcontextprotocol on GitHub (modelcontextprotocol/java-sdk), where the source, issues and releases live.

Is it free to use?

Yes — it is free and open source under the MIT licence, which permits use, modification and redistribution, including commercially, with attribution.

Does it need a paid API key?

No API key is needed for the SDK itself — it is a protocol library; any LLM costs depend on the client application you connect.

How does it compare to the TypeScript or Python MCP SDKs?

Compared with the TypeScript or Python MCP SDKs, java-sdk's distinguishing focus is: the official Java SDK for building Model Context Protocol servers and clients. Pick it when that focus matches your need; the alternative may suit you better if its broader or different scope is the priority.

How do I get started?

Clone https://github.com/modelcontextprotocol/java-sdk (or install its published package), follow the README quick start to install and configure it, then run the smallest documented example — the Run section on this page mirrors those steps.

// continue explorando

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// alternativas

Alternativas em Ferramentas de desenvolvimento

Os outros projetos de Ferramentas de desenvolvimento com mais estrelas no catálogo do LibreAI — a lista realista de alternativas se java-sdk não for o ideal para você.

// mais em devtools

Mais em Ferramentas de desenvolvimento

Projetos de Ferramentas de desenvolvimento próximos no catálogo, os mais próximos em estrelas de java-sdk: continue explorando dos dois lados dele.

Baixe o java-sdk

Grátis e aberto: pegue o código-fonte, dê uma estrela no repositório e comece a criar.