Lets AI assistants create, modify and manage n8n workflows through the n8n REST API.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add n8n-workflow-builder-spences10 --env N8N_HOST='<N8N_HOST>' --env N8N_API_KEY='<N8N_API_KEY>' --env OUTPUT_VERBOSITY='<OUTPUT_VERBOSITY>' -- npx -y mcp-n8n-builder~/.codex/config.toml
[mcp_servers.n8n-workflow-builder-spences10]
command = "npx"
args = ["-y", "mcp-n8n-builder"]
env = { N8N_HOST = "<N8N_HOST>", N8N_API_KEY = "<N8N_API_KEY>", OUTPUT_VERBOSITY = "<OUTPUT_VERBOSITY>" }
# codex mcp add n8n-workflow-builder-spences10 --env N8N_HOST='<N8N_HOST>' --env N8N_API_KEY='<N8N_API_KEY>' --env OUTPUT_VERBOSITY='<OUTPUT_VERBOSITY>' -- npx -y mcp-n8n-builder~/.cursor/mcp.json
{
"mcpServers": {
"n8n-workflow-builder-spences10": {
"command": "npx",
"args": [
"-y",
"mcp-n8n-builder"
],
"env": {
"N8N_HOST": "<N8N_HOST>",
"N8N_API_KEY": "<N8N_API_KEY>",
"OUTPUT_VERBOSITY": "<OUTPUT_VERBOSITY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"n8n-workflow-builder-spences10": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mcp-n8n-builder"
],
"env": {
"N8N_HOST": "<N8N_HOST>",
"N8N_API_KEY": "<N8N_API_KEY>",
"OUTPUT_VERBOSITY": "<OUTPUT_VERBOSITY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"n8n-workflow-builder-spences10": {
"command": "npx",
"args": [
"-y",
"mcp-n8n-builder"
],
"env": {
"N8N_HOST": "<N8N_HOST>",
"N8N_API_KEY": "<N8N_API_KEY>",
"OUTPUT_VERBOSITY": "<OUTPUT_VERBOSITY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"n8n-workflow-builder-spences10": {
"command": "npx",
"args": [
"-y",
"mcp-n8n-builder"
],
"env": {
"N8N_HOST": "<N8N_HOST>",
"N8N_API_KEY": "<N8N_API_KEY>",
"OUTPUT_VERBOSITY": "<OUTPUT_VERBOSITY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"n8n-workflow-builder-spences10": {
"command": "npx",
"args": [
"-y",
"mcp-n8n-builder"
],
"env": {
"N8N_HOST": "<N8N_HOST>",
"N8N_API_KEY": "<N8N_API_KEY>",
"OUTPUT_VERBOSITY": "<OUTPUT_VERBOSITY>"
}
}
}
}Environment variables
N8N_HOSTN8N_API_KEYOUTPUT_VERBOSITY
Replace the placeholders with your own credentials and keep them out of version control.