If you have not done this already, before you can use your project, you need to add your Claude API credentials to PlusLive AI. 

This step securely stores your API key so the application can communicate with Claude.

5.1 Navigate to Model Management

In the PlusLive AI left navigation menu, click on Model Management under the Administration section. 

This page manages all AI model credentials and settings.

5.2 Add New Credential

Click the Add Credential button in the API Credentials section. 

A dialog will appear asking you to select the model and enter your API key.

5.3 Enter API Key Details

In the Add New API Credential dialog:

• Select Model: Choose "Claude Sonnet 4.5 (Anthropic)" from the dropdown menu or LATEST version

• Enter API Key: Paste the Claude API key you saved earlier from Step 4

• Review Security Note: Note that API keys are encrypted before storage and never displayed in plain text after initial entry

Click Save Credential to securely store your API key.

5.4 Verify the Credential

After saving, you'll see your credentials listed in the API Credentials section with a status indicator. 

Click the Verify button to test the connection to Claude and ensure your API key is working correctly.