Io.modelcontext/clojure Sdk MCP Server

@unravel-team

リポジトリ

基本情報

カテゴリ

開発者ツール

ライセンス

MIT

トランスポート

stdio

作者

unravel-team

Io.modelcontext/clojure Sdk MCP Server について

A Clojure SDK to create MCP servers (and eventually clients)

Io.modelcontext/clojure Sdk MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "mcp-clojure-sdk": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "java",
        "-Dclojure.tools.logging.factory=clojure.tools.logging.impl/log4j2-factory",
        "-Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.Slf4jLog",
        "-Dlog4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector",
        "-Dlog4j2.configurationFile=log4j2-mcp.xml",
        "-Dbabashka.json.provider=metosin/jsonista",
        "-Dlogging.level=INFO",
        "-cp",
        "examples/target/io.modelcontextprotocol.clojure-sdk/examples-1.2.0.jar",
        "calculator_server"
      ]
    }
  }
}

Io.modelcontext/clojure Sdk MCP Server のツール

ツール一覧はまだありません

この掲載には表示できるツール一覧がまだありません。サーバーにツールがないという意味ではありません。対応機能はプロジェクトのドキュメントをご確認ください。

上のボタンで一時的なサンドボックスでこのサーバーを実行し、ツール一覧を取得できます。

概要

What is io.modelcontext/clojure-sdk?

A Clojure SDK for building servers that implement the Model Context Protocol (MCP). It provides core components including server implementation, STDIO transport, error handling, and protocol specifications. It is aimed at Clojure developers who want to create MCP servers that expose tools, resources, and prompts to AI clients like Claude Desktop.

How to use io.modelcontext/clojure-sdk?

Add the dependency via git coordinates in deps.edn or use the provided deps-new template or GitHub template to quickly scaffold a new project. Build the examples jar with make clean && make examples-jar, then run any example server (e.g., calculator_server, vegalite_server, code_analysis_server) using java with the required JVM properties and classpath.

Key features of io.modelcontext/clojure-sdk

Core server implementation handling MCP request/response cycles
STDIO transport layer using core.async channels
Custom error handling and protocol specification validation
Example servers: calculator, Vega-lite charting, and code analysis
Templates for quick project scaffolding (deps-new, GitHub)

Use cases of io.modelcontext/clojure-sdk

Expose arithmetic tools (add, subtract, multiply, etc.) to an MCP client
Generate Vega-lite charts from data via a dedicated tool server
Provide analysis prompts for code review or poetry generation
Build custom MCP servers in Clojure with minimal boilerplate

よくある質問

What is the MCP protocol and how does this SDK relate to it?

The Model Context Protocol (MCP) is a client-server protocol for AI assistants to interact with tools, resources, and prompts. This SDK implements that protocol in Clojure, handling initialization, discovery, and interaction phases.

What dependencies or runtime requirements does this SDK have?

It requires a Java runtime and Clojure build tools (deps.edn). The Vega-lite example additionally needs the `vl-convert` CLI installed.

How can I create a new MCP server using this SDK?

Use the `deps-new` template `mcp-clojure-server-deps-new` or the GitHub template `example-cool-mcp-server` to quickly start a new project.

How do I run the example servers?

Build the examples jar with `make clean && make examples-jar`, then invoke each server via `java` with the specified JVM properties and classpath. Examples are configured for Claude Desktop or MCP Inspector.

What transport does this SDK support?

The SDK implements STDIO transport for communication between client and server.

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