Real time option Greek value with customised calculation

Hello, I am looking for a freelancer to help me with a real time option greek value with customised calculation. Specifically, I need someone to help me calculate vega, theta, and delta values in real-time. Additionally, I require customisation in the calculations. Finally, I need the output of real time option greek values to be delivered via an API. If you have the necessary skills and can complete this project, please reach out!