SonarQube MCP Server

A Model Context Protocol (MCP) server that provides AI assistants with access to SonarQube code quality, security, and project analytics data.

Features

• Project Listing: Get comprehensive project information with quality metrics
• Project Metrics: Fetch detailed quality metrics including coverage, duplication, maintainability
• Issue Management: List and analyze code quality issues with filtering capabilities
• Security Analysis: Get detailed security vulnerability and hotspot information
• Quality Gates: Check quality gate status and conditions
• Historical Analysis: View project evolution and quality trends over time

Installation

npm (Recommended)

# Global installation
npm install -g mcp-sonarqube

# Local installation in your project
npm install mcp-sonarqube

From Source

1. Clone the repository:

git clone https://github.com/akhilthomas236/sonarqube-mcp-npm.git
cd sonarqube-mcp

2. Install dependencies:

npm install

3. Build the project:

npm run build

Quick Start

1. Install the package

npm install -g mcp-sonarqube

2. Set up environment variables

export SONARQUBE_URL="http://your-sonarqube-instance:9000"
export SONARQUBE_TOKEN="your-sonarqube-token"

3. Run as MCP Server

mcp-sonarqube

4. VS Code Integration

Create .vscode/mcp.json in your workspace:

{
  "servers": {
    "sonarqube": {
      "command": "npx",
      "args": ["mcp-sonarqube"],
      "env": {
        "SONARQUBE_URL": "http://localhost:9000",
        "SONARQUBE_TOKEN": "your-sonarqube-token-here"
      }
    }
  }
}

Then use with GitHub Copilot:

@copilot List all projects in our SonarQube instance
@copilot Show me quality metrics for project "my-app"
@copilot What are the critical security vulnerabilities in project "api-service"?

Getting a SonarQube Token

1. Log in to your SonarQube instance
2. Go to User > My Account > Security
3. Generate a new token with appropriate permissions
4. Use this token as your SONARQUBE_TOKEN

Usage

Running the Server

npm start

The server runs on stdio transport and communicates via the Model Context Protocol.

Available Tools

1. list_projects

Lists all projects in your SonarQube instance with key metrics.

Parameters:

• search (optional): Filter projects by name or key
• qualityGate (optional): Filter by quality gate status (OK, WARN, ERROR)
• organization (optional): Filter by organization (SonarCloud)

2. get_project_metrics

Get comprehensive metrics for a specific project.

Parameters:

• projectKey (required): The SonarQube project key
• branch (optional): Branch name (defaults to main branch)
• metrics (optional): Comma-separated list of specific metrics

3. list_issues

List code quality issues with filtering options.

Parameters:

• projectKey (required): The SonarQube project key
• branch (optional): Branch name
• types (optional): Issue types (BUG, VULNERABILITY, CODE_SMELL)
• severities (optional): Severities (BLOCKER, CRITICAL, MAJOR, MINOR, INFO)
• statuses (optional): Statuses (OPEN, CONFIRMED, REOPENED, RESOLVED, CLOSED)
• assignees (optional): Assignee usernames
• tags (optional): Issue tags
• limit (optional): Maximum number of issues (default: 50)

4. get_security_vulnerabilities

Get detailed security vulnerability analysis.

Parameters:

• projectKey (required): The SonarQube project key
• branch (optional): Branch name
• severities (optional): Filter by severities
• statuses (optional): Filter by statuses
• assigned (optional): Filter by assigned/unassigned
• limit (optional): Maximum number of vulnerabilities (default: 50)

5. get_quality_gate

Check quality gate status and conditions.

Parameters:

• projectKey (required): The SonarQube project key
• branch (optional): Branch name

6. get_analysis_history

View historical analysis data and trends.

Parameters:

• projectKey (required): The SonarQube project key
• branch (optional): Branch name
• from (optional): Start date (YYYY-MM-DD)
• to (optional): End date (YYYY-MM-DD)
• limit (optional): Maximum number of analyses (default: 10)

Development

Project Structure

src/
├── index.ts                    # MCP server entry point
├── services/
│   └── sonarqube-client.ts    # SonarQube API client
├── tools/                     # MCP tool implementations
│   ├── list-projects.ts
│   ├── get-project-metrics.ts
│   ├── list-issues.ts
│   ├── get-security-vulnerabilities.ts
│   ├── get-quality-gate.ts
│   └── get-analysis-history.ts
├── types/
│   └── sonarqube.ts          # TypeScript type definitions
└── utils/
    └── formatting.ts         # Utility functions

Scripts

• npm run build - Build the TypeScript project
• npm run dev - Run in development mode with ts-node
• npm start - Start the MCP server
• npm test - Run tests

Adding New Tools

1. Create a new tool file in src/tools/
2. Implement the tool schema and handler function
3. Add the tool to the imports and tools array in src/index.ts
4. Add a case for the tool in the CallTool handler

VS Code Integration

To use this MCP server with VS Code and Copilot:

Method 1: Using npx (Recommended)

1. Create .vscode/mcp.json in your workspace:

{
  "servers": {
    "sonarqube": {
      "command": "npx",
      "args": ["mcp-sonarqube"],
      "env": {
        "SONARQUBE_URL": "http://localhost:9000",
        "SONARQUBE_TOKEN": "your-token-here"
      }
    }
  }
}

Method 2: Using local installation

If you have the package installed locally:

{
  "servers": {
    "sonarqube": {
      "command": "node",
      "args": ["./node_modules/mcp-sonarqube/dist/index.js"],
      "env": {
        "SONARQUBE_URL": "http://localhost:9000",
        "SONARQUBE_TOKEN": "your-token-here"
      }
    }
  }
}

Method 3: Global installation

If you have the package installed globally:

{
  "servers": {
    "sonarqube": {
      "command": "mcp-sonarqube",
      "env": {
        "SONARQUBE_URL": "http://localhost:9000",
        "SONARQUBE_TOKEN": "your-token-here"
      }
    }
  }
}

2. Install the MCP extension for VS Code
3. The SonarQube tools will be available in Copilot Chat

Examples

Check Project Quality

@copilot Use the SonarQube tools to give me a quality overview of project "my-app"

Security Analysis

@copilot Show me all security vulnerabilities in project "my-app" that are CRITICAL or BLOCKER

Quality Gate Status

@copilot Check if project "my-app" passes its quality gate

Historical Trends

@copilot Show me the quality trends for project "my-app" over the last month

Error Handling

The server provides detailed error messages for common issues:

• Missing environment variables
• Invalid project keys
• SonarQube connection issues
• Authentication failures
• Invalid parameters

Troubleshooting

"Server exited before responding to initialize request"

If you encounter this error in VS Code or when using the MCP server, try these solutions:

1. Test the server directly first:

   # Test if the server starts correctly
   node dist/index.js
   # Should output: "SonarQube MCP Server started successfully"
      
   # Test with an MCP initialize request
   echo '{"jsonrpc": "2.0", "id": 1, "method": "initialize", "params": {"protocolVersion": "2024-11-05", "capabilities": {}, "clientInfo": {"name": "test", "version": "1.0.0"}}}' | node dist/index.js

2. For VS Code integration issues:

   • Make sure the package is installed globally: npm install -g mcp-sonarqube
   • Try using the full path instead of npx:

     {
       "servers": {
         "sonarqube": {
           "command": "node",
           "args": ["/path/to/global/node_modules/mcp-sonarqube/dist/index.js"],
           "env": {
             "SONARQUBE_URL": "http://localhost:9000",
             "SONARQUBE_TOKEN": "your-token"
           }
         }
       }
     }

   • Restart VS Code after changing the MCP configuration

3. For npx issues:

   • Clear npm cache: npm cache clean --force
   • Reinstall the package: npm uninstall -g mcp-sonarqube && npm install -g mcp-sonarqube
   • Check Node.js version (requires Node.js 18+)

4. Environment variable issues:

   • Ensure SONARQUBE_URL and SONARQUBE_TOKEN are properly set
   • Test connection: curl -u your-token: $SONARQUBE_URL/api/projects/search

SonarQube API Parameter Errors

If you encounter API errors related to invalid parameters:

1. "additionalFields components must be one of..."

   • This error has been fixed in version 1.0.2+
   • Update to the latest version: npm update -g mcp-sonarqube
   • The server now uses valid additionalFields values: rules,users,comments

2. Invalid parameter values:

   • Check that your SonarQube version supports the API endpoints being used
   • Some parameters may have different valid values in different SonarQube versions
   • Refer to your SonarQube instance's API documentation at: {SONARQUBE_URL}/web_api

Network and Authentication Issues

1. Connection errors:

   • Verify SonarQube URL is accessible
   • Check firewall settings
   • Ensure SonarQube server is running

2. Authentication errors:

   • Verify token is valid and has appropriate permissions
   • Check token expiration
   • Ensure token has at least "Browse" permission on projects

3. SSL/TLS issues:

   • For self-signed certificates, you may need to set NODE_TLS_REJECT_UNAUTHORIZED=0 (not recommended for production)

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

License

MIT License - see LICENSE file for details

Links

• npm Package: https://www.npmjs.com/package/mcp-sonarqube
• GitHub Repository: https://github.com/akhilthomas236/sonarqube-mcp-npm
• SonarQube Documentation: https://docs.sonarqube.org/
• Model Context Protocol: https://modelcontextprotocol.io/

Support

For issues and questions:

1. Check the SonarQube API documentation
2. Verify your token permissions
3. Ensure network connectivity to SonarQube
4. Check the server logs for detailed error messages
5. Create an issue on GitHub