option greeks

suhasm

I need option greeks data. I have seen the javascript method which is shared in the forum shared to calculate the same.
These below values are the inputs to the javascript method. but how can i get the below values from api. which api should i call to get these values?

spot = 8400;
strike = 8600;
expiry = "2016-12-01 23:59:00";
volt = 18;
int_rate = 7;
div_yld = 0;

suhasm

i can get the 'spot', 'strike' and 'expiry' from websockets. but how can i get the 'volt', 'int_rate', and 'div_yield'?