MCP server Official

n8n MCP Server Trigger

n8n core node that turns a workflow into an MCP server exposing n8n tools to MCP clients.

Author: n8n
Works with: Any MCP client
Documented: Oct 2, 2026

What n8n MCP Server Trigger is

The MCP Server Trigger node lets n8n act as an MCP server, making n8n tools and workflows available to MCP clients. It exposes a URL and only connects to tool nodes. It supports SSE and streamable HTTP, not stdio.

What it does

Where n8n MCP Server Trigger runs and what it adds, from its documentation

Exposes attached tool nodes to MCP clients via a URL
Exposes workflows via the Custom n8n Workflow Tool node
Provides separate test and production MCP URLs
Supports None, Bearer or Header authentication
Allows a custom URL path

When to use it

Good fit

You want Claude Desktop or another client to call your n8n tools
You self-host n8n and want to expose workflows as MCP tools

Not for

stdio transport clients without a proxy
Queue mode with multiple webhook replicas unless /mcp* is routed to a single replica

How to install n8n MCP Server Trigger

You need: An n8n instance

Add the MCP Server Trigger node to a workflow
Attach tool nodes (or Custom n8n Workflow Tool)
Set authentication (Bearer or Header recommended)
Publish the workflow and copy the Production URL
Add the URL to the client, e.g. via npx mcp-remote for Claude Desktop

Configuration example (from the official docs)

{
  "mcpServers": {
    "n8n": {
      "command": "npx",
      "args": ["mcp-remote","<MCP_URL>","--header","Authorization: Bearer ${AUTH_TOKEN}"],
      "env": {"AUTH_TOKEN": "<MCP_BEARER_TOKEN>"}
    }
  }
}

Permissions and security

What it can access

Executes the tool nodes attached to it

Security notes from the maintainers

Authentication can be set to None; docs offer Bearer and Header auth

Review the source before granting an agent access to credentials or production systems. We document what the maintainers state; we do not audit code.

Limitations

No stdio transport
Multiple webhook replicas break SSE/streamable HTTP unless /mcp* goes to one replica

Tools it extends

Coding

Claude Code

Web · Desktop

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Anthropic's agentic coding tool that reads your codebase, edits files and runs commands from the terminal, IDEs, desktop app or browser.

Watch out: Not included in the Free Claude plan, and usage on subscriptions is capped by plan limits.

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Verified Sep 29, 2026 code.claude.com (opens Claude Code website in a new tab)

From $20/mo US · checked Sep 29

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Frequently asked questions

What does the n8n MCP Server Trigger node do?

It makes n8n act as an MCP server exposing tools and workflows to MCP clients. source

Which transports does the n8n MCP Server Trigger support?

SSE and streamable HTTP; stdio is not supported. source

How do I connect Claude Desktop to the n8n MCP Server Trigger?

Use npx mcp-remote with the MCP URL and a Bearer header in claude_desktop_config. source

Does the n8n MCP Server Trigger work in queue mode?

Yes with a single webhook replica; with several, route all /mcp* requests to one dedicated replica. source

Related guides

Sources and gaps

https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-langchain.mcptrigger/ docs, checked Oct 2, 2026
https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-langchain.mcptrigger.md docs, checked Oct 2, 2026

Not stated by the maintainers: license; last_release.