n8n API Integration

Programmatic control of n8n via REST API.

Authentication

API Key Setup

1. Settings → API → Create API Key
2. Store key securely (shown once)

Request Headers

curl -X GET "http://localhost:5678/api/v1/workflows" \
  -H "X-N8N-API-KEY: your-api-key"

Base URL

• Self-hosted: http://localhost:5678/api/v1
• Cloud: https://your-instance.n8n.cloud/api/v1