| # Arize | |
| [Arize](https://arize.com) is an AI observability and LLM evaluation platform that offers | |
| support for LangChain applications, providing detailed traces of input, embeddings, retrieval, | |
| functions, and output messages. | |
| ## Installation and Setup | |
| First, you need to install `arize` python package. | |
| ```bash | |
| pip install arize | |
| ``` | |
| Second, you need to set up your [Arize account](https://app.arize.com/auth/join) | |
| and get your `API_KEY` or `SPACE_KEY`. | |
| ## Callback handler | |
| ```python | |
| from langchain_community.callbacks import ArizeCallbackHandler | |
| ``` | |