May '25 • 🛠️ n8n troubleshooting
Claude - MCP - n8n not connecting
hey all. i'm trying to figure out the n8n mcp server trigger, and i'm in this weird situation. hoping you have some idea what's going on or how to troubleshoot:
- n8n instance is self hosted community edition on hostinger, docker container
- i set up an mcp server trigger in an n8n workflow
- i edited the claude desktop config file to add the supergateway connection to the n8n mcp production server URL
- i closed and reopened claude desktop and get a connection error message
- i curl'd the supergateway connection to the mcp server manually and it works fine
- used claude to troubleshoot each step and all the logs. it tells me everything's working but the claude desktop is requesting a different version of the mcp protocol than the one n8n is responding with.
- does this make sense if all my installs have been upgraded to latest versions? and if so, how / where would i change the version numbers to make them compatible? I'm thinking probably supergateway would need to be upgraded ... but i don't see anything in the git repo that shows any variable where i can specify it; nor can i see any specification of the version number in n8n settings, or in the docker container yaml
ringing bells for anyone? all thoughts and insights welcome!
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Claude - MCP - n8n not connecting
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