# Infino >[Infino](https://github.com/infinohq/infino) is an open-source observability platform that stores both metrics and application logs together. Key features of `Infino` include: - **Metrics Tracking**: Capture time taken by LLM model to handle request, errors, number of tokens, and costing indication for the particular LLM. - **Data Tracking**: Log and store prompt, request, and response data for each LangChain interaction. - **Graph Visualization**: Generate basic graphs over time, depicting metrics such as request duration, error occurrences, token count, and cost. ## Installation and Setup First, you'll need to install the `infinopy` Python package as follows: ```bash pip install infinopy ``` If you already have an `Infino Server` running, then you're good to go; but if you don't, follow the next steps to start it: - Make sure you have Docker installed - Run the following in your terminal: ``` docker run --rm --detach --name infino-example -p 3000:3000 infinohq/infino:latest ``` ## Using Infino See a [usage example of `InfinoCallbackHandler`](/docs/integrations/callbacks/infino.html). ```python from langchain.callbacks import InfinoCallbackHandler ```