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Integrating Open WebUI with an openAI compatible AI Service

Fabrizio Elvidio Pardo Bartolomeo∙7 April 2025

As conversational AI becomes more accessible, developers and enthusiasts are increasingly turning to platforms like Open WebUI to create user-friendly interfaces for interacting with large language models (LLMs). Open WebUI offers a sleek, customizable, web-based chat interface that integrates with various AI backends, providing a seamless experience for both end users and developers.

In this guide, we’ll walk through how to integrate Open WebUI with an endpoint-based AI like regolo.ai.

Prerequisites

In order to operate with Open WebUI, we expect you to have a Docker installation on your machine. If you prefer to install it in different ways, you can refer to the Open WebUI GitHub page and skip to First setup of Open WebUI

Docker installation methods vary by system. Follow the official documentation to install it correctly:

Installing open WebUI

Once docker is configured, you are ready to install Open WebUI on you PC.

You can use either Docker or Docker Compose, depending on your preference. If you’re just getting started, the following commands will download and run Open WebUI in a Docker container:

docker pull ghcr.io/open-webui/open-webui:main
docker run -d -p 3000:8080 -v open-webui:/app/backend/data --name open-webui ghcr.io/open-webui/open-webui:mainCode language: Bash (bash)

First setup of Open WebUI

After the container starts, you can access Open WebUI through your browser at http://localhost:3000.

On your first launch:

  • Click Get Started and fill in your user details.
  • Make sure to remember the email and password you use — if forgotten, you’ll need to reset the open-webui Docker volume.

Connecting Open WebUI to regolo.ai

Now that you have your installation ready, we can finally setup Open WebUI to work with regolo.ai:

  • Click the user icon in the top-right corner and select ⚙️ Settings.
  • In the settings menu, go to ☁️ Connections.
  • Click Add Connection and enter the following fields:
    • API Base URL: https://api.regolo.ai/v1
    • API Key: Enter your regolo.ai API key (refer to our docs to retrieve it)
  • Click Save, then close the settings.

Final thoughts

Your favorite models are now available on Open WebUI! Simply select one from the Select a model menu in the top-left corner of the chat interface and start interacting.

As always, let us know if you had any problems following our examples, and contact us if you have any question about regolo!