You are able to upload clients to Artichoke.
While in your Dashboard-- Go to Settings-- Import Contacts-- In the top right there is an import feature.
You will want to assure you have your contact data in the proper format so we have provided you with a template to use. That is also located in this section under '1. Create the Spreadsheet (.CSV)'
When you click on Blank Spreadsheet Template you will automatically download the file.
Please note though that all contacts MUST have a first name or letter. The other information is not required to perform a successful update.