polarion-mcp 0.1.21

Polarion MCP Server - Model Context Protocol integration for Siemens Polarion ALM

Polarion MCP Server

Model Context Protocol (MCP) server for Siemens Polarion requirements management.

Quick Start

Install

pip install polarion-mcp

Configure in Cursor

Edit mcp.json:

{
  "mcpServers": {
    "polarion": {
      "command": "polarion-mcp"
    }
  }
}

Authenticate

In Cursor chat:

Open Polarion login
Set Polarion token: <your-token>

Connect to Your Polarion Instance

Default: http://dev.polarion.atoms.tech/polarion

To use your own instance, set environment variable:

export POLARION_BASE_URL="https://your-polarion.com/polarion"

Or in mcp.json:

{
  "mcpServers": {
    "polarion": {
      "command": "polarion-mcp",
      "env": {
        "POLARION_BASE_URL": "https://your-polarion.com/polarion"
      }
    }
  }
}

Available Tools

Authentication

• Open Polarion login - Open browser login
• Set Polarion token: <token> - Save token
• Check Polarion status - Verify auth

Projects

• Get Polarion projects - List all projects
• Get Polarion project: PROJECT_ID - Get project details

Work Items

• Get Polarion work items: PROJECT_ID - List items
• Get Polarion work items: PROJECT_ID (query: "type:requirement") - Filter
• Get Polarion work item: PROJECT_ID ITEM_ID - Get details

Documents

• Get Polarion document: PROJECT_ID SPACE_ID DOCUMENT_NAME - Access documents

Connect to URL-based Server (Claude Desktop)

For servers accessible via URL (e.g., GCP deployment):

1. Install mcp-remote:

npm install -g mcp-remote

2. Configure claude_desktop_config.json:

{
  "mcpServers": {
    "polarion-demo": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "http://YOUR_SERVER_IP:8080/sse"]
    }
  }
}

Important: Use the VM's IP address (e.g., 35.209.32.163), not the domain name. Domain names will fail with "Invalid Host header" error.

Troubleshooting

Can't connect?

• Verify POLARION_BASE_URL is correct
• Check Polarion instance is accessible
• Verify token hasn't expired

"Invalid Host header" error?

• Use IP address, not domain name in connections
• ✅ http://35.209.32.163:8080/sse (works)
• ❌ http://dev.polarion.atoms.tech:8080/sse (fails)
• This is a FastMCP limitation - it validates Host headers strictly

Authentication failed?

• Regenerate token in Polarion
• Use: Open Polarion login → Set Polarion token

Resources

• GitHub: https://github.com/Sdunga1/MCP-Polarion
• PyPI: https://pypi.org/project/polarion-mcp

License

MIT