Docker Usage Guide for n8n-mcp

Running in HTTP Mode

The n8n-mcp Docker container can be run in HTTP mode using several methods:

Method 1: Using Environment Variables (Recommended)

bash

docker run -d -p 3000:3000 \
  --name n8n-mcp-server \
  -e MCP_MODE=http \
  -e AUTH_TOKEN=your-secure-token-here \
  ghcr.io/czlonkowski/n8n-mcp:latest

Method 2: Using docker-compose

bash

# Create a .env file
cat > .env << EOF
MCP_MODE=http
AUTH_TOKEN=your-secure-token-here
PORT=3000
EOF

# Run with docker-compose
docker-compose up -d

Method 3: Using a Configuration File

Create a config.json file:

json

{
  "MCP_MODE": "http",
  "AUTH_TOKEN": "your-secure-token-here",
  "PORT": "3000",
  "LOG_LEVEL": "info"
}

Run with the config file:

bash

docker run -d -p 3000:3000 \
  --name n8n-mcp-server \
  -v $(pwd)/config.json:/app/config.json:ro \
  ghcr.io/czlonkowski/n8n-mcp:latest

Method 4: Using the n8n-mcp serve Command

bash

docker run -d -p 3000:3000 \
  --name n8n-mcp-server \
  -e AUTH_TOKEN=your-secure-token-here \
  ghcr.io/czlonkowski/n8n-mcp:latest \
  n8n-mcp serve

Important Notes

AUTH_TOKEN is required for HTTP mode. Generate a secure token:
bash
```
openssl rand -base64 32
```
Environment variables take precedence over config file values
Default mode is stdio if MCP_MODE is not specified
Health check endpoint is available at http://localhost:3000/health

Troubleshooting

Container exits immediately

Check logs: docker logs n8n-mcp-server
Ensure AUTH_TOKEN is set for HTTP mode

"n8n-mcp: not found" error

This has been fixed in the latest version
Use the full command: node /app/dist/mcp/index.js as a workaround

Config file not working

Ensure the file is valid JSON
Mount as read-only: -v $(pwd)/config.json:/app/config.json:ro
Check that the config parser is present: docker exec n8n-mcp-server ls -la /app/docker/