The OpenAI Agents SDK allows you to build agentic applications powered by OpenAI’s models. Learn how to trace your LLM applications using the OpenAI Agents SDK with LangSmith.

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Installation

Requires Python SDK version langsmith>=0.3.15.
Install LangSmith with OpenAI Agents support: 
pip install "langsmith[openai-agents]"
This will install both the LangSmith library and the OpenAI Agents SDK.

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Quick Start

You can integrate LangSmith tracing with the OpenAI Agents SDK by using the OpenAIAgentsTracingProcessor class. 
import asyncio
from agents import Agent, Runner, set_trace_processors
from langsmith.wrappers import OpenAIAgentsTracingProcessor

async def main():
    agent = Agent(
        name="Captain Obvious",
        instructions="You are Captain Obvious, the world's most literal technical support agent.",
    )
    
    question = "Why is my code failing when I try to divide by zero? I keep getting this error message."
    result = await Runner.run(agent, question)
    print(result.final_output)

if __name__ == "__main__":
    set_trace_processors([OpenAIAgentsTracingProcessor()])
    asyncio.run(main())
The agent’s execution flow, including all spans and their details, will be logged to LangSmith. OpenAI Agents SDK Trace in LangSmith