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Sign up for the 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/5B296C8B680CE27831E138C3/5B296C8E680CE27831E138D3/en_GB/2c780efa80424061048c6deec396b57c.png)
Once you have your secret key, you’re ready to make your first API request.
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