Blitapp provides an API to create, update, delete and run captures. The API is documented at https://blitapp.com/api/.
To start using the API, you need to create an API key. Go to API and click Create API key.
A new API key will be created. You can use it at https://blitapp.com/api/: click on Authorize and fill out the api_key or key box.
You can delete your API keys at any time to rotate them.