# Docs by LangChain: LangSmith REST API

> Markdown index of the LangSmith REST API documentation.

## LangSmith REST API

- [Create an alert rule](https://docs.langchain.com/langsmith/smith-api/alert_rules/create-an-alert-rule.md)
- [Test an alert action to determine if configuration is valid](https://docs.langchain.com/langsmith/smith-api/alert_rules/test-an-alert-action-to-determine-if-configuration-is-valid.md)
- [Get an alert rule](https://docs.langchain.com/langsmith/smith-api/alert_rules/get-an-alert-rule.md)
- [Delete an alert rule](https://docs.langchain.com/langsmith/smith-api/alert_rules/delete-an-alert-rule.md)
- [Update an alert rule](https://docs.langchain.com/langsmith/smith-api/alert_rules/update-an-alert-rule.md)