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Open WebUI is a self-hosted web interface for AI models. Configure it to use CometAPI as an external OpenAI-compatible connection.

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Prerequisites

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Setup

1

Get your CometAPI API key

Log in to the CometAPI dashboard. Click Add API Key and copy your key and base URL (https://api.cometapi.com).
CometAPI dashboard — Add API Key
CometAPI API key and base URL
2

Add an external OpenAI connection

In Open WebUI, go to Admin Panel → Settings → External Connections. Enable External Link OpenAI API, enter https://api.cometapi.com/v1 in the API Address field, paste your key into the Key field, and click Save.
Open WebUI external connections settings with CometAPI URL entered
Open WebUI settings saved with CometAPI connection active
3

Test the connection

Start a chat and send a test message. A successful reply confirms the integration is working.