Clojars MCP Server

Clojars MCP Server

Fetch and manage Clojars dependency data via MCP for Claude and other AI tools.

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Clojars MCP Server is a Model Context Protocol (MCP) server that enables tools like Claude to fetch up-to-date dependency information from Clojars, the Clojure community artifact repository. It provides standardized MCP tools to retrieve the latest versions of dependencies, check if specific versions exist, and access version histories. Designed for easy integration with AI coding assistants, it supports direct installation and seamless connectivity to Claude via MCP settings.

Key Features

Fetch latest version of Clojars dependencies
Check existence of specific dependency versions
Retrieve dependency version history with limits
MCP protocol-compliant server
Integration with Claude and other AI tools
Installation via npx, npm, or Smithery
Easy configuration for Claude environments
Simple API with clear input schemas
Automated detection by Claude
Focused, concise response formats

Use Cases

AI-assisted code generation with accurate dependency management
Ensuring specified dependency versions exist during development
Automated version update checks for Clojure projects
Integrating Clojars data into Claude workflows
Real-time retrieval of latest Clojars packages for code suggestions
Providing tooling support for Clojure and Roo Code dependencies
Augmenting AI programming environments with live package data
Dependency auditing and validation in CI pipelines
Automating migration checks for Clojure libraries
Serving as a plug-and-play backend for custom MCP-compatible tools

README

Clojars MCP Server

npm version

A Model Context Protocol (MCP) server that provides tools for fetching dependency information from Clojars, the Clojure community's artifact repository for Cline, Roo Code, Cody, Claude Desktop etc.

Installation

Installing via npx

The quickest way to use the Clojars MCP Server is to run it directly with npx:

bash
npx clojars-deps-server

You can also install it globally:

bash
npm install -g clojars-deps-server

Installing via Smithery

To install Clojars Dependency Server for Claude Desktop automatically via Smithery:

bash
npx -y @smithery/cli install clojars-deps-server --client claude

Manual Installation

  1. Clone this repository:
bash
git clone https://github.com/yourusername/clojars-deps-server.git
cd clojars-deps-server
  1. Install dependencies:
bash
npm install
  1. Build the server:
bash
npm run build
  1. Add the server to your Claude configuration:

For VSCode Claude extension, add to cline_mcp_settings.json (typically located at ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/ on macOS):

json
{
  "mcpServers": {
    "clojars-deps-server": {
      "command": "node",
      "args": ["/path/to/clojars-deps-server/build/index.js"]
    }
  }
}

For Claude desktop app, add to claude_desktop_config.json (typically located at ~/Library/Application Support/Claude/ on macOS):

json
{
  "mcpServers": {
    "clojars-deps-server": {
      "command": "node",
      "args": ["/path/to/clojars-deps-server/build/index.js"]
    }
  }
}

After adding the server configuration, Claude will automatically detect and connect to the server on startup. The server's capabilities will be listed in Claude's system prompt under "Connected MCP Servers", making them available for use.

Features

  • Get the latest version of any Clojars dependency
  • Check if a specific version of a dependency exists
  • Get version history of dependencies with configurable limits
  • Simple, focused responses
  • Easy integration with Claude through MCP

How It Works

When this MCP server is configured in Claude's settings, it automatically becomes available in Claude's system prompt under the "Connected MCP Servers" section. This makes Claude aware of the server's capabilities and allows it to use the provided tools through the use_mcp_tool command.

The server exposes three tools:

get_clojars_latest_version

json
{
  "name": "get_clojars_latest_version",
  "description": "Get the latest version of a Clojars dependency (Maven artifact)",
  "inputSchema": {
    "type": "object",
    "properties": {
      "dependency": {
        "type": "string",
        "description": "Clojars dependency name in format \"group/artifact\" (e.g. \"metosin/reitit\")"
      }
    },
    "required": ["dependency"]
  }
}

check_clojars_version_exists

json
{
  "name": "check_clojars_version_exists",
  "description": "Check if a specific version of a Clojars dependency exists",
  "inputSchema": {
    "type": "object",
    "properties": {
      "dependency": {
        "type": "string",
        "description": "Clojars dependency name in format \"group/artifact\" (e.g. \"metosin/reitit\")"
      },
      "version": {
        "type": "string",
        "description": "Version to check (e.g. \"0.7.2\")"
      }
    },
    "required": ["dependency", "version"]
  }
}

get_clojars_history

json
{
  "name": "get_clojars_history",
  "description": "Get version history of a Clojars dependency",
  "inputSchema": {
    "type": "object",
    "properties": {
      "dependency": {
        "type": "string",
        "description": "Clojars dependency name in format \"group/artifact\" (e.g. \"metosin/reitit\")"
      },
      "limit": {
        "type": "number",
        "description": "Number of versions to return (default: 15, max: 100)",
        "minimum": 1,
        "maximum": 100
      }
    },
    "required": ["dependency"]
  }
}

The tool names and descriptions are specifically designed to help Claude understand that these tools are for retrieving version information from Clojars. When users ask about Clojars dependencies, Claude can recognize that these tools are appropriate for the task based on:

  • The tool names explicitly indicate their purpose
  • The descriptions specify they're for "Clojars dependency (Maven artifact)"
  • The example formats show typical Clojars dependency patterns

Star History

Star History Chart

Repository Owner

Bigsy
Bigsy

User

Repository Details

Language JavaScript
Default Branch main
Size 32 KB
Contributors 3
License MIT License
MCP Verified Nov 12, 2025

Programming Languages

JavaScript
92.42%
Dockerfile
7.58%

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