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MCP serverPartly tested (needs an account)

Design n8n automations

n8n-MCP

An MCP server by Romuald Czlonkowski that gives your agent the n8n node docs and templates, so it can design workflows. Docs mode needs no n8n account.

Works with
Claude Code, Codex CLI, Gemini CLI
Good for
Build an app, Daily work and research

What it does

What it is

n8n is a tool to connect apps and build automations, for example: when a form is sent, add a row to a sheet and send a message. This MCP server teaches your agent about n8n: all node types, their settings and many templates.

Who it helps

People who want to describe an automation in words and let the agent draw the workflow.

How to start

Start in documentation mode. Ask the agent to design a workflow and review it. Import it into n8n by hand.

Be careful

If you give the agent an n8n API key, it can change real workflows. The author says: never edit production workflows directly with AI. Test with dummy data first.

How to install

npx n8n-mcp

How to use it

Register the server with your agent, with the setting MCP_MODE=stdio. Then ask for an automation, for example "design an n8n workflow that saves new form entries to a sheet". Review the workflow before you import it.

What to watch out for

  • If you add an n8n API key, the agent can create and change workflows in your n8n. The author warns: never let the agent edit production workflows directly. Work on a copy.
  • Automations can send emails and call other services. Test them with dummy data.
  • A hosted option exists that sends your questions to the author's service.

Licence and author

Licence
MIT
Author
Romuald Czlonkowski
Source code
github.com/czlonkowski/n8n-mcp

How we tested it

We installed it on an empty test computer on 12 Oct 2026. Partly tested: installed in a clean test system, but its main features need an account or key we did not use.

Test level

This tested documentation mode only. The tools that create or run workflows need an n8n API key and were not tested. The README points to a separate guide for the self-host steps; the install line comes from that guide.

Technical details of the test
Date
12 Oct 2026
Method
In a clean container with no account we started npx -y n8n-mcp, sent the MCP initialize and tools/list requests, and it answered with 7 tools (documentation, node search, node details, validation and templates). We also registered it with claude mcp add -e MCP_MODE=stdio, and claude mcp list reported it as connected.

Checked again on 12 Oct 2026

Sources