How to configure embedded (aka "native") MCP-Server comming with SonarQube Server 2026.3

SonarQube MCP Server
1

Environment

  • SonarQube Server 2026.3 (Enterprise)
  • Deployment type: Docker (Compose)

Description

We just upgraded to SonarQube Server 2026.3 which comes with a MCP Server “embedded”.
It still requires us to configure sonar.mcp.serverUrl
I tried to set this to http://127.0.0.1:9000.

This results into following logging:
sonarqube-1 | 2026.05.21 15:48:00 WARN web[27653176-24de-4fc8-bf20-ae216cf7a60e][com.sonar.d._] MCP proxy failed to forward request to http://127.0.0.1:9000/mcp: timeout

Can you please give some hint regarding the correct setting for sonar.mcp.serverUrlin an IMO default docker-compose-deployment? Many thanks!

3

Got it up and working - SonarQube Server-hosted | AC/DC | Sonar Documentation helped out.

5

Hey @ChristophS78, thanks for reaching out and for letting us know you were able to find the answer in our documentation! If you run into any other questions, or if there’s anything in the docs that could be clearer, please feel free to contact us anytime.