MCP could not connect to your MCP server

Questions
1

My N8N MCP server connect to mcp client. it show ‘Could not connect to your MCP server’.

MCP server is use cloud serve. So, it do not show error?
MCP client need to use Claude Desktop?

Information on your n8n setup

  • **n8n version: 1.91.2
  • **Database (default: SQLite): no
  • **n8n EXECUTIONS_PROCESS setting (default: own, main): default: own
  • **Running n8n via (Docker, npm, n8n cloud, desktop app): npm
  • **Operating system: windows 10
2

Ehy,
i think your problem is common to what you can find here:

Hope it helps!

1 Like
3

i use npm to open my n8n. i don’t know how to disable gzip.

5

Hi @tytom2003 ,

In case this is still relevant - the issue is that you MUST use a reverse-proxy in order to install an MCP server on n8n. The gist is that the reverse proxy provides a single SSL termination point that both external and internal clients can reach using the same domain name and certificate. The reason is that SSL termination is required and enforced has to do with the configuration of the MCP Server Trigger node NPM library, from what I could gather.

I’ve written an article on Medium on how to make it work with a complete setup using docker compose.

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6

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