Using Zeabur AI Hub in n8n

n8n is a powerful workflow automation tool that supports integration with various AI models. This tutorial uses OpenAI models as an example to demonstrate how to use Zeabur AI Hub’s API in n8n. The process is similar for other models.

Prerequisites

Before you begin, make sure you have:

1. Deployed n8n service on Zeabur (you can use the n8n template for quick deployment)
2. Added credits to Zeabur AI Hub
3. Created an API key

Setting Up OpenAI Credentials

Step 1: Add Credentials

1. Open your n8n interface
2. Click “Credentials” in the top right corner
3. Click ”+ Add Credential”
4. Search and select “OpenAI”

Step 2: Configure API Key and Base URL

In the credential settings page:

1. API Key: Paste the API key you created in AI Hub
2. Base URL: Enter the Zeabur AI Hub endpoint

https://hnd1.aihub.zeabur.ai/v1

Or choose other regional endpoints based on your needs:

• HND1 - Tokyo, Japan: https://hnd1.aihub.zeabur.ai/v1
• SFO1 - San Francisco, USA: https://sfo1.aihub.zeabur.ai/v1

3. Click “Save”

Step 3: Bind Credentials to Workflow Node and Disable Use Responses API

1. Add a node that uses AI in your workflow (e.g., OpenAI Chat Model)
2. In “Credential to connect with”, select the credential you just created
3. Find the “Use Responses API” option and turn it off

Step 4: Test Connection

After configuration, run the workflow to verify the settings. If configured correctly, you should see a successful AI response.

If errors occur, check:

• API key is correct (no extra spaces)
• Base URL is correctly configured
• “Use Responses API” is disabled
• Zeabur AI Hub account has sufficient credits