have you used their api? what is your experience?Tdameritrade - they have significantly less shortable stock compared to ib though
thanks for the info. which language are you using to code?Easy to use - all rest based - the initial authentication is somewhat weird but once you’re over that you get a token that’s valid for 90 days. It’s fast enough for what I do - they don’t document their limits too well (or I haven’t found that info) and sometimes I send too many requests and have to throttle back but overall a good functioning api.
Nope - every option leg is ~ 65 cents/contractIs option like credit spread also free to trade?