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This guide shows you how to generate an API key in SendGrid and add it to systeme.io.
What you will need:
Log in to your SendGrid dashboard (1).

Click Settings (2) in the left sidebar.

Select API Keys (3).

Click the Create API Key button (4).

Click Create & View (7).

Click the key to copy it to your clipboard (8).
Important: SendGrid will not show this key again. Make sure you copy and save it immediately before clicking Done (9).

Go to the Emails tab (11) in the left menu.

Paste your key into the field (12) and click Save (13)

Last updated on April 17, 2026