# Docs by LangChain: LangSmith REST API

> Markdown index of the LangSmith REST API documentation.

## LangSmith REST API

- [List data planes for the current organization](https://docs.langchain.com/langsmith/smith-api/data_planes/list-data-planes-for-the-current-organization.md)
- [Create a new data plane](https://docs.langchain.com/langsmith/smith-api/data_planes/create-a-new-data-plane.md)
- [Delete a data plane](https://docs.langchain.com/langsmith/smith-api/data_planes/delete-a-data-plane.md)