SonarQube MCP Server

A Model Context Protocol (MCP) server for interacting with SonarQube code quality platform.

Features

• 21 SonarQube tools organized into 7 categories, accessible via dispatch pattern
• 6 MCP Prompts for code review, security audits, and quality reports
• 7 MCP Resources for browseable URI-based access to SonarQube data
• Multi-instance support for managing multiple SonarQube servers
• HTTP transport modes - stdio, SSE, and streamable-http

Installation

# Using pip
pip install sonar-mcp

# Using uv (recommended)
uv pip install sonar-mcp

Quick Start

1. Configure for Claude Code

Add to your Claude Code MCP settings:

{
  "mcpServers": {
    "sonar-mcp": {
      "command": "sonar-mcp",
      "env": {
        "SONAR_TOKEN": "your-sonarqube-token",
        "SONAR_URL": "https://sonarqube.example.com"
      }
    }
  }
}

2. Use the Tools

The server uses a dispatch pattern (similar to GitLab MCP) with just 3 meta-tools:

# Discover available tools by category
sonar_list_categories()
sonar_list_categories(category="issue")  # Filter to specific category

# Get parameter schema for a tool
sonar_get_tool_schema(tool_name="sonar_list_issues")

# Execute any tool by name
sonar_execute_tool(tool_name="sonar_list_projects")
sonar_execute_tool(tool_name="sonar_list_issues", arguments={"project": "my-project"})

Running the Server

Stdio Mode (Default)

For Claude Code and other MCP clients that use stdio transport:

sonar-mcp
# or
python -m sonar_mcp

Streamable HTTP Mode

For web-based clients or remote access:

# Start server on default port 8000
sonar-mcp --transport streamable-http

# Custom host and port
sonar-mcp --transport streamable-http --host 0.0.0.0 --port 3000

# Using environment variables
SONAR_MCP_TRANSPORT=streamable-http SONAR_MCP_PORT=3000 sonar-mcp

SSE Mode (Server-Sent Events)

For clients that support SSE transport:

sonar-mcp --transport sse --port 8000

Command Line Options

Option	Description	Default
--transport	Transport protocol: stdio, sse, streamable-http	stdio
--host	Host address for HTTP transports	127.0.0.1
--port	Port for HTTP transports	8000
--version	Show version and exit	-

Environment Variables

Variable	Description	Required
SONAR_TOKEN	SonarQube API token	Yes
SONAR_URL	SonarQube server URL	Yes
SONAR_MCP_TRANSPORT	Default transport mode	No
SONAR_MCP_HOST	Default host for HTTP	No
SONAR_MCP_PORT	Default port for HTTP	No

Available Tools

Dispatch Meta-Tools (3 tools, always available)

These 3 tools provide access to all SonarQube functionality:

Tool	Description
sonar_list_categories	Discover available tools by category
sonar_get_tool_schema	Get parameter schema for a specific tool
sonar_execute_tool	Execute any tool by name with arguments

Category: instance (4 tools)

Instance management for SonarQube server connections:

• sonar_list_instances - List all configured instances
• sonar_manage_instance - Create, update, delete instances
• sonar_select_instance - Set the active instance
• sonar_test_connection - Test instance connectivity

Category: project (3 tools)

Project operations:

• sonar_list_projects - List all accessible projects
• sonar_get_project - Get project details and metrics
• sonar_detect_project - Auto-detect project from current directory

Category: issue (5 tools)

Issue management:

• sonar_list_issues - List issues with filtering (severity, type, status)
• sonar_get_issue - Get detailed issue information
• sonar_transition_issue - Change issue status (resolve, falsepositive, etc.)
• sonar_add_comment - Add a comment to an issue
• sonar_bulk_transition - Bulk transition multiple issues

Category: quality (2 tools)

Quality gate operations:

• sonar_get_quality_gate - Get quality gate status (OK/ERROR)
• sonar_check_goals - Validate against quality goals

Category: metrics (3 tools)

Metrics retrieval:

• sonar_get_metrics - Get project metrics
• sonar_get_coverage - Get coverage percentage
• sonar_get_file_coverage - Get file-level coverage details

Category: rules (1 tool)

Rule information:

• sonar_get_rule - Get rule details and remediation guidance

Category: task (3 tools)

Async task management:

• sonar_get_task - Get task status
• sonar_list_tasks - List background tasks
• sonar_cancel_task - Cancel a running task

MCP Resources

Browseable URI-based access to SonarQube data:

URI Pattern	Description
sonarqube://projects	List all projects
sonarqube://projects/{key}	Get project details
sonarqube://projects/{key}/issues	Get project issues
sonarqube://projects/{key}/issues/{severity}	Get issues by severity
sonarqube://projects/{key}/metrics	Get project metrics
sonarqube://projects/{key}/quality-gate	Get quality gate status

MCP Prompts

Reusable prompt templates for code quality workflows:

Prompt	Description
code_review	Review code issues and suggest fixes
fix_issues	Generate fix recommendations for issues
quality_report	Generate quality report for a project
quality_goals	Check project against quality goals
security_audit	Perform security vulnerability audit
vulnerability_fix	Generate fixes for security vulnerabilities

Development

Setup

# Clone the repository
git clone https://github.com/wadew/sonar-mcp.git
cd sonar-mcp

# Create virtual environment
uv venv
source .venv/bin/activate

# Install dependencies
uv pip install -e ".[dev]"

Testing

# Run all tests with coverage
pytest tests/ -v --cov=src/sonar_mcp --cov-report=term-missing

# Run with coverage enforcement (80% minimum)
pytest tests/ -v --cov=src/sonar_mcp --cov-fail-under=80

Linting

# Check linting
ruff check src/ tests/

# Format code
ruff format src/ tests/

# Type checking
mypy src/

License

MIT License - see LICENSE for details.

Contributing

1. Follow TDD (Test-Driven Development) - write tests first
2. Maintain 80% coverage on ALL modules
3. Ensure all linting and type checks pass
4. Use conventional commits

See CONTRIBUTING.md for detailed guidelines.