// devtools · modelcontextprotocol/java-sdk

java-sdk

java-sdk es un proyecto de herramientas de desarrollo de código abierto de modelcontextprotocol (modelcontextprotocol/java-sdk en GitHub). Tiene 3.723 estrellas en GitHub y 1.155 bifurcaciones, se publica bajo la licencia MIT y se actualizó por última vez en GitHub el 8 de octubre de 2026.

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

★ 3,7k estrellas⑂ 1,2k bifurcacionesMITactualizado oct 2026
▦ visual: el README de este proyecto no incluye ninguna captura incrustable,
así que aquí va un marcador. La guía de abajo está completa de todos modos.
// datos del proyecto

Datos del proyecto

Estrellas en GitHub
3.723
Bifurcaciones
1.155
Licencia
MIT
Última actualización en GitHub
8 de octubre de 2026
Tipo de ficha
Guía de instalación completa
Sitio oficial
Official site
// cómo funciona

Cómo 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.

// características

Por qué gusta 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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// ejecútalo

Ejecútalo tú mismo

  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

Qué puedes crear

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// preguntas frecuentes

Preguntas frecuentes

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.

// sigue explorando

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// alternativas

Alternativas en Herramientas de desarrollo

Los demás proyectos de Herramientas de desarrollo con más estrellas del catálogo de LibreAI: la lista realista de alternativas si java-sdk no es lo que buscas.

// más en devtools

Más en Herramientas de desarrollo

Proyectos de Herramientas de desarrollo cercanos en el catálogo, los más próximos en estrellas a java-sdk: sigue explorando a ambos lados.

Consigue java-sdk

Gratis y abierto: consigue el código fuente, dale una estrella al repositorio y empieza a crear.