n8n Instance-Level MCP

A Model Context Protocol server built into n8n (v1.21.2+) that exposes an entire n8n instance to MCP clients like Claude, ChatGPT, and Lovable. The first pattern let clients search workflows, get workflow details, and execute workflows on demand. A newer official MCP beta discussed in ^[src-086] moves further toward agent-assisted workflow creation and editing by shipping reference documents and workflow SDK context to the MCP client.

Key points

• Exposes three tools: search workflows, get workflow details, execute workflow
• Requires n8n v1.21.2 or higher; enable via Settings to MCP Access
• Workflows must be published AND toggled 'available in MCP' individually
• Supports webhook, schedule, chat, and form triggers as MCP workflow types
• Claude has a native connector; ChatGPT needs developer mode and OAuth; Lovable has a native integration
• Workflow description is the tool-discovery prompt for clients – write it clearly
• Different from the community n8n MCP server (which exposes node catalogue and templates, not live instance workflows)
• Newer official MCP direction: let agents build and revise workflows with enough n8n reference context to avoid brittle node guesses ^[src-086]
• This makes MCP a context-engineering surface, not only an API wrapper ^[src-086]

Related entities

• n8n
• Claude Code

Related concepts

• Model Context Protocol (MCP)
• Claude Code + n8n Integration Pattern
• n8n as Agent Execution Layer
• Workflow Automation Fundamentals

Source references

• ^[src-005] Nate Herk cluster — Nate Herk — n8n cluster (18 videos)

– Videos referenced: 5p5cV0yVDvQ, jx-yvSRLKrA

• ^[src-086] n8n — "n8n Desk: The Open Source Claude Desktop That Runs on top of n8n's new MCP" (2026-05-11)