n8n Credentials Explained: Connect Gmail, OpenAI & More

Want to connect Gmail, OpenAI, Slack, or any app to your n8n workflows? You need credentials first—and this video shows you exactly how to set them up. I'll walk you through what credentials are, why you need them, and how to create them step-by-step. You'll see me connect Gmail (OAuth2) and OpenAI (API Key) live so you can follow along. By the end, you'll know how to manage, rename, test, and troubleshoot any credential in n8n. 📌 WHAT YOU'LL LEARN: What n8n credentials are and where to find them Why every node needs credentials to work The 4 main credential types (OAuth2, API Key, Basic Auth, Header Auth) Live setup: Gmail and OpenAI credentials How to rename, test, and delete credentials Quick fixes for common credential errors 👋 CONNECT WITH ME: Website: aiworkflowsautomation.com #n8n #automation #nocodeautomation #n8ntutorial #workflowautomation