A: Hi, good question.

They are good for building integrations with other tools, or automations in general. The API is a way to make changes in Dart from outside (for instance, you could write code that says, every time x thing happens in Salesforce, create a new task in Dart). Webhooks are a way to send info from Dart to another place (e.g. every time a task is created in Dart, send a Discord message about it). You can read some more here https://help.dartai.com/en/articles/9558290-api-libraries-and-cli and here https://help.dartai.com/en/articles/9024895-webhooks

I would also say that both API and webhooks are general concepts, not specific to Dart, so you can poke around with any AI chat or web search to learn more about them!