If you can get a zerodha.com account, they allow for order placement through their api. Source: over 2 years ago

You didn't ask the country so my answers might slightly differ 1. India - Kite by Zerodha[0]. Zero brokerage fees (!) for equity delivery. INR 20 for options. Easy to understand UI and great community 2. Australia - Superhero [1]. Zero brokerage for buying ETFs. Easy app but given my infrequent usage (once a month) not really a problem. [0]https://zerodha.com/. - Source: Hacker News / almost 3 years ago

The guy who runs this place is supposedly pretty good. Source: about 3 years ago

Head to https://paywithmoon.com/ and sign up. Source: over 1 year ago

I am the founder of paywithmoon.com. Source: over 1 year ago

Moon might be a good option for you. They offer prepaid, non-reloadable debit cards that are paid for in BTC. Best of all, there’s no KYC at all, and they can even be added to Apple Pay or Google Pay. I quite like it, I think it’s pretty neat. Source: over 1 year ago

3) As a last resort, there are tools to make sats to fiat payments, like https://allark.io/ https://paywithmoon.com/ or https://www.coindebit.io/. Source: over 1 year ago

Use paywithmoon.com to create virtual Visa card(US merchants only!) Use bestchange.®u to exchange rubles to Bitcoins and send them to Moon. Source: over 1 year ago