The article explains how to send a vCard using Python and Twilio Programmable SMS. To create a vCard, one can use the vobject library in Python and add properties such as name, phone number, birthday, address, and email. The vCard file is then served publicly using ngrok or another hosting solution like AWS S3 or Google Cloud's Cloud Storage. Finally, the vCard file is sent as an MMS via Twilio's API, with the recipient able to import the contact information into their address book.