How to authenticate against the Split API

All requests to Split's API must be authenticated with an admin API key. The admin key type provides private and universal access to current and future admin APIs. Creating an API key is simple and can be done in the API Keys section of settings.


Learn more about API keys

To best familiarize yourself with using API keys in Split, refer to the API keys guide in our main documentation site for more information.

Authentication Header

An authentication header must be added containing your API key for the request. Authenticate with the API by adding an authorization header containing your admin API key.

Authorization: Bearer ADMIN_API_KEY