All endpoints must include an Authorization header. Checkbook uses the standard HTTP Authorization header to pass authentication information.

This header can be found on the Settings page. Choose the Developer tab from the menu panel and take note of the API Key and API Secret provided.

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API Keys by Environments

The API keys are different in each environment. You need to use your Sandbox keys in the Sandbox environment and your Production keys in the Production environment. Click on the GO TO SANDBOX button to switch to the Sandbox environment and so you can retrieve the API keys.