V2 of the API, only seems that hour, minute, and day time frames work. The API documentation here clearly states that you can use 15 minute candle data.
! am using the query below, but when trying to use TimeFrame.15Min, I get an error. Is 15 minute data possible in V2?
api.get_bars(symbol, ‘TimeFrame.15Min’, ‘2021-01-15’, ‘2021-09-15’, adjustment=‘raw’).df
Possibly use lower case?
“15min” vs “15Min”
“30min” works for me
Thanks Paul, I’ll give it a shot!
Hi Paul, that did not work either. I think my formatting is off somehow, I don’t think ‘15Min’ or ‘15min’ works.
Oops! My bad. I was using a completely different data provider when I said that “30min” worked for me.
The alpaca_trade_api source code (rest.py) only has these TimeFrames:
1Day, 1Hour, 1Min, 1Sec
Please excuse the spam, and accept my apologies 
Just for anybody who is interested - this is how to request 15 minute bars
tqqq = api.get_bars(symbol='TQQQ', timeframe=alpaca.TimeFrame(15, alpaca.TimeFrameUnit.Minute), start=start_date, end=end_date)