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claude-memory/graph/configurations/n8n-mcp-server-setup-for-claude-code-via-mcp-manager-1d8200.md

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id type title tags importance confidence created updated
1d8200b3-2413-41c0-86a7-26e246ff22ac configuration n8n-mcp server setup for Claude Code via mcp-manager
n8n
mcp
claude-code
automation
configuration
0.7 0.8 2026-02-20T03:37:30.277147+00:00 2026-02-20T03:37:30.277147+00:00

Setup

Added n8n-mcp (czlonkowski/n8n-mcp v2.35.3) as an on-demand MCP server managed by the mcp-manager skill.

Architecture Decision

  • Runs locally via npx n8n-mcp in stdio mode (not on the n8n Docker host)
  • Rationale: The bundled node docs/templates (1,084 nodes, 2,709 templates) are in a local SQLite DB — no need to be near n8n. The n8n API at http://10.10.0.210:5678 is fast over LAN. Running remotely would require HTTP transport + port exposure for no benefit.

Config Files

  • ~/.claude/.mcp.json — active MCP config (cognitive-memory always loaded, n8n-mcp added on demand)
  • ~/.claude/.mcp-full.json — full registry with all MCP definitions including credentials
  • ~/.claude/.mcp.json.backup — auto-created before changes
  • ~/.claude/secrets/n8n_api_key — n8n REST API key (JWT)

n8n-mcp Entry

{
  "command": "npx",
  "args": ["n8n-mcp"],
  "env": {
    "MCP_MODE": "stdio",
    "N8N_API_URL": "http://10.10.0.210:5678",
    "N8N_API_KEY": "<from ~/.claude/secrets/n8n_api_key>",
    "N8N_MCP_TELEMETRY_DISABLED": "true",
    "DISABLE_CONSOLE_OUTPUT": "true",
    "LOG_LEVEL": "error"
  }
}

mcp-manager Integration

  • Trigger keywords: n8n, workflow, automation, webhook, n8n node, n8n template
  • Cleaned out Daniel Miessler's personal MCPs from the skill registry
  • Updated registry to reflect Cal's actual MCPs: cognitive-memory (always loaded) + n8n-mcp + playwright (on demand)

Activation Flow

  1. mcp-manager detects n8n keywords → merges n8n-mcp from .mcp-full.json into .mcp.json
  2. User restarts Claude Code
  3. n8n MCP tools available (node search, template browsing, workflow CRUD)
  4. When done, "unload n8n-mcp" removes it from .mcp.json

n8n Instance

  • LXC 210, IP 10.10.0.210, n8n v2.0.3
  • API enabled, key generated via Settings > API
  • 2 active workflows (including Ko-fi → Paper Dynasty)