Fu-Jie_openwebui-extensions/docs/plugins/pipes/index.md

Pipe Plugins

Pipe plugins create custom model integrations or transform LLM responses. They appear as selectable models in the OpenWebUI interface.

What are Pipes?

Pipes allow you to:

• :material-api: Connect to external AI APIs (Gemini, Claude, etc.)
• :material-robot: Create custom model wrappers
• :material-cog-transfer: Transform requests and responses
• :material-middleware: Implement middleware logic

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Available Pipe Plugins

• GitHub Copilot SDK (v0.12.2) - Official GitHub Copilot SDK integration. Features Workspace Isolation, Zero-config OpenWebUI Tool Bridge, BYOK support, and dynamic MCP discovery. NEW in v0.12.2: manage_skills multi-line SKILL.md frontmatter support and safer YAML writes. View Deep Dive | View Advanced Tutorial | View Detailed Usage Guide.
• Case Study: GitHub 100 Star Growth Analysis - Learn how to use the GitHub Copilot SDK Pipe with Minimax 2.1 to automatically analyze CSV data and generate project growth reports.
• Case Study: High-Quality Video to GIF Conversion - See how the model uses system-level FFmpeg to accelerate, scale, and optimize colors for screen recordings.

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How Pipes Work

graph LR
    A[User selects Pipe as Model] --> B[Pipe receives request]
    B --> C[Transform/Route request]
    C --> D[External API / Custom Logic]
    D --> E[Return response]
    E --> F[Display to User]

The pipes Method

Defines what models this pipe provides:

def pipes(self):
    return [
        {"id": "my-model", "name": "My Custom Model"},
        {"id": "my-model-fast", "name": "My Custom Model (Fast)"}
    ]

The pipe Method

Handles the actual request processing:

def pipe(self, body: dict) -> Generator:
    # Process the request
    messages = body.get("messages", [])
    
    # Call external API or custom logic
    response = call_external_api(messages)
    
    # Return response (can be streaming)
    return response

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Quick Installation

1. Download the desired pipe .py file
2. Navigate to Admin Panel → Settings → Functions
3. Upload the file and configure API keys
4. The pipe will appear as a selectable model

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Development Template

"""
title: My Custom Pipe
author: Your Name
version: 1.0.0
description: Description of your pipe plugin
"""

from pydantic import BaseModel, Field
from typing import Generator, Iterator, Union

class Pipe:
    class Valves(BaseModel):
        API_KEY: str = Field(
            default="",
            description="API key for the external service"
        )
        API_URL: str = Field(
            default="https://api.example.com",
            description="API endpoint URL"
        )
    
    def __init__(self):
        self.valves = self.Valves()
    
    def pipes(self) -> list[dict]:
        """Define available models."""
        return [
            {"id": "my-model", "name": "My Custom Model"},
        ]
    
    def pipe(
        self,
        body: dict
    ) -> Union[str, Generator, Iterator]:
        """Process the request and return response."""
        messages = body.get("messages", [])
        model = body.get("model", "")
        
        # Your logic here
        # Can return:
        # - str: Single response
        # - Generator/Iterator: Streaming response
        
        return "Response from custom pipe"

For more details, check our Plugin Development Guide.