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Sign up for an API
Most services require you to sign up for their API, after which you’re assigned a “secret key” that grants you access. This key is included as part of the API request, letting the service know who’s making the API request — this key is unique to you and should not be shared with anyone else.
You can sign up for a Dark Sky account here.
![Dark Sky Secret Key.](https://help.apple.com/assets/5D66C362680CE25E7861EFB5/5D66C38B680CE25E7861EFC5/en_GB/b859e24b10eec8cd489fda504a3778c7.png)
Once you have your secret key, you’re ready to make your first API request.
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