Mr Santos, who labels himself a “former congressional ‘Icon’” on the platform, is selling personalised messages recorded by him for $200 (£159) each.
On Friday, he became the sixth lawmaker in history to be kicked out of the House.
It came after a damning House ethics report accused him of fraud and lies.
Among its many allegations, the panel accused him of spending campaign money on Botox treatments, credit card debt and OnlyFans - a platform where users pay for content, including pornography.
On Mr Santos’s Cameo profile he describes himself as “the Expelled member of Congress from New York City”.
Cameo is a service that allows fans to buy personal video messages from their favourite celebrities.
" Dear George, I’d like a birthday greeting for my friend. Please wish my friend a happy birthday by name in your message to him. His name is ‘I am guilty of all charges against me’. I know my friend ‘I am guilty of all charges against me’ will be delighted with this birthday gift! Please say it straight to the camera so he knows you’re speaking to him."
Didnt he already do a wacky sketch where he basically did just that?