Thanks.io

Thanks.io is a direct mail marketing platform that allows users to send personalized cards, letters, and gifts. It's used by businesses looking to improve customer relationships, generate leads, and increase sales through tangible mail campaigns.

Official docs: https://thanksio.com/developers/

Thanks.io Overview

• Contacts
• Campaigns
  • Campaign Steps
• Orders
• Address Book
• Templates
• Lists
• Users
• Billing
• Account
  • Team Members