Unofficial Open WebUI API Documentation and Python Client

📚 Full Documentation Site

This project provides both a robust, async Python client for the complete Open WebUI API and comprehensive unofficial documentation for the Open WebUI API in general.

Python Client

A fully typed, async Python client that mirrors the backend structure of Open WebUI, providing an auto-completable interface for every endpoint.

Installation

pip install owui-client

Quick Start

import asyncio
from owui_client import OpenWebUI

async def main():
    # Connect to your Open WebUI instance
    client = OpenWebUI(
        api_url="http://localhost:8080/api", 
        api_key="sk-..."
    )

    # Example: Get current user info
    user = await client.auths.get_session_user()
    print(f"Hello, {user.name}!")

    # Example: List all models
    models = await client.models.get_models()
    for model in models.data:
        print(model.id)

if __name__ == "__main__":
    asyncio.run(main())

Locating Endpoints

The client structure matches the Open WebUI backend router structure exactly. If you know the API endpoint or backend path, you know the client function.

API Group	Client Attribute	Description
Auth & Users	client.auths	Sign in/up, API keys, session management
	client.users	User management, permissions, settings
	client.groups	Group management
Content	client.chats	Chat history, messages, archiving
	client.prompts	Prompt management
	client.files	File uploads and management
	client.knowledge	Knowledge base operations
Inference	client.openai	OpenAI-compatible chat completions & config
	client.ollama	Ollama configuration & endpoints
	client.images	Image generation endpoints
	client.audio	TTS and STT endpoints
System	client.configs	Global system configurations
	client.models	Model management (delete, update, import)
	client.tools	Tool management
	client.functions	Function management

Tip: Use your IDE's autocomplete on the client object to explore all available resources.

API Documentation

The documentation site provides comprehensive coverage of all API endpoints, models, and their fields. This includes detailed descriptions of every field of every model, calculated automatically by examining their usage in the Open WebUI source code.

The field descriptions are extracted from:

• Type annotations and Pydantic model definitions
• Docstrings and comments in the source code
• Actual usage patterns found throughout the codebase
• API response examples and validation logic

This documentation is useful even if you're not using the Python client - it serves as a complete reference for the Open WebUI API, including all valid key/values accepted by dict fields.

Note

This project is maintained independently and may not always reflect the latest changes in Open WebUI. For the official Open WebUI documentation, please visit the Open WebUI repository.