> ## Documentation Index
> Fetch the complete documentation index at: https://docs.agentops.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# LlamaIndex
> AgentOps works seamlessly with LlamaIndex, a framework for building context-augmented generative AI applications with LLMs.
[LlamaIndex](https://www.llamaindex.ai/) is a framework for building context-augmented generative AI applications with LLMs. AgentOps provides observability into your LlamaIndex applications through automatic instrumentation.
```bash pip theme={null}
pip install agentops
```
```bash poetry theme={null}
poetry add agentops
```
```bash pip theme={null}
pip install llama-index-instrumentation-agentops
```
```bash poetry theme={null}
poetry add llama-index-instrumentation-agentops
```
Make sure to call `agentops.init` before calling any `openai`, `cohere`, `crew`, etc models.
```python python theme={null}
from llama_index.core import set_global_handler
# NOTE: Feel free to set your AgentOps environment variables (e.g., 'AGENTOPS_API_KEY')
# as outlined in the AgentOps documentation, or pass the equivalent keyword arguments
# anticipated by AgentOps' AOClient as **eval_params in set_global_handler.
set_global_handler("agentops")
```
Set your API key as an `.env` variable for easy access.
```python .env theme={null}
AGENTOPS_API_KEY=
```
Read more about environment variables in [Advanced Configuration](/v1/usage/advanced-configuration)
Execute your program and visit [app.agentops.ai/drilldown](https://app.agentops.ai/drilldown) to observe your LlamaIndex application! 🕵️
After your run, AgentOps prints a clickable url to console linking directly to your session in the Dashboard
## Usage Pattern
Here's a simple example of how to use AgentOps with LlamaIndex:
```python theme={null}
from llama_index.core import set_global_handler
import llama_index.core
# Set the global handler to AgentOps
set_global_handler("agentops")
# Your LlamaIndex application code here
# AgentOps will automatically track LLM calls and other operations
```
## Additional Resources
For more detailed information about LlamaIndex's observability features and AgentOps integration, check out the [LlamaIndex documentation](https://docs.llamaindex.ai/en/stable/module_guides/observability/#agentops).