In order to connect Pimento with Squarespace, you will beed to be on the Squarespace Commerce Advanced or Premium plan.To connect your Squarespace account to Pimento, follow the below steps:
Within the Squarespace dashboard:
Open the Developer tools panel
Click Developer API Keys
Click Generate Key
Enter Pimento as the Key Name
Under Permissions, check Orders and Inventory
Click Next
Copy your unique API key
Navigate to Settings > Integrations within the Pimento dashboard, and press Connect within the Squarespace section.