The Handwrytten API provides programmatic access to the greeting card writing platform. API functions include managing profiles, gift card commands, template commands, user and recipient commands, and more. Handwrytten is a platform for automating the sending of handwritten notes, written in pen and ink. All notes are written in the handwriting style of your choice by a robot. The envelope is addressed in pen and ink as well and a real stamp is affixed prior to mailing.