n8n Workflow with Relay API

1. Create a new workflow

2. Choose a trigger. Here we use the first option: Manual Trigger

3. Add the next workflow node

4. Select OpenAI

5. For chat, choose Message a model

6. Configure the relay API

Create an API key on the API Tokens page. Change Base URL from https://api.openai.com/v1 to https://4zapi.com/v1.

Click Save.

7. After saving, a success message means the connection works

8. Configure this node briefly

Click Execute step to test

Response looks good.