> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agno.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Langtrace

> Send Agno model-call traces to Langtrace.

## Integrating Agno with Langtrace

Langtrace traces and monitors the model calls made by an Agno agent.

## Prerequisites

1. **Install Dependencies**

   Ensure you have the necessary package installed:

   ```bash theme={null}
   uv pip install agno openai yfinance langtrace-python-sdk
   ```

2. **Create a Langtrace Account**

   * Sign up for an account at [Langtrace](https://app.langtrace.ai/).
   * Obtain your API key from the Langtrace dashboard.

3. **Set Environment Variables**

   Configure your environment with the Langtrace and OpenAI API keys:

   ```bash theme={null}
   export LANGTRACE_API_KEY=<your-key>
   export OPENAI_API_KEY=<your-key>
   ```

## Sending Traces to Langtrace

Instrument your Agno agent with Langtrace.

```python theme={null}
from langtrace_python_sdk import langtrace

langtrace.init()

from agno.agent import Agent
from agno.models.openai import OpenAIResponses
from agno.tools.yfinance import YFinanceTools

agent = Agent(
    name="Stock Price Agent",
    model=OpenAIResponses(id="gpt-5.2"),
    tools=[YFinanceTools()],
    instructions="You are a stock price agent. Answer questions in the style of a stock analyst.",
    debug_mode=True,
)

agent.print_response("What is the current price of Tesla?")
```

Initialize Langtrace before importing Agno or OpenAI modules. This lets Langtrace instrument the model client when it loads.