ag-ui-langroid

Implementation of the AG-UI protocol for Langroid.

Provides a complete Python integration for Langroid agents with the AG-UI protocol, including FastAPI endpoint creation and comprehensive event streaming.

Installation

pip install ag-ui-langroid

Usage

from langroid import Agent
from langroid.language_models import OpenAIChatModel
from ag_ui_langroid import LangroidAgent, create_langroid_app

# Create a Langroid agent
model = OpenAIChatModel()
agent = Agent(
    name="assistant",
    system_message="You are a helpful assistant.",
    llm=model,
)

# Wrap with AG-UI adapter
agui_agent = LangroidAgent(
    agent=agent,
    name="agentic_chat",
    description="Conversational Langroid agent with AG-UI streaming",
)

# Create FastAPI app
app = create_langroid_app(agui_agent, "/")

Features

• Native Langroid integration – Direct support for Langroid agents and tools
• FastAPI endpoint creation – Automatic HTTP endpoint generation with proper event streaming
• Advanced event handling – Comprehensive support for all AG-UI events including tool calls and state updates
• Message translation – Seamless conversion between AG-UI and Langroid message formats

Examples

See the examples/ directory for complete working examples demonstrating:

• Agentic chat
• Tool-based generative UI
• Backend tool rendering
• Shared state management
• Human-in-the-loop interactions