# Docs by LangChain: LangSmith REST API

> Markdown index of the LangSmith REST API documentation.

## LangSmith REST API

- [Create comment](https://docs.langchain.com/langsmith/smith-api/comments/create-comment.md)
- [Get comments](https://docs.langchain.com/langsmith/smith-api/comments/get-comments.md)
- [Get sub comments](https://docs.langchain.com/langsmith/smith-api/comments/get-sub-comments.md)
- [Create sub comment](https://docs.langchain.com/langsmith/smith-api/comments/create-sub-comment.md)
- [Like comment](https://docs.langchain.com/langsmith/smith-api/comments/like-comment.md)
- [Unlike comment](https://docs.langchain.com/langsmith/smith-api/comments/unlike-comment.md)