Alpaca
p/alpaca
API for Stock, Options & Crypto Trading
Yoshi Yokokawa

Alpaca Trading API — Simple REST API for commission-free stock trading

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Alpaca Trading API is a commission-free stock trading API for developers to build trading algorithms and applications with ease. (Securities are offered by Alpaca Securities LLC)

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Joshua Dance
Seems too good to be true? What are the downsides? And what is the price?
Matthew Wean
@joshdance Yeah, I was trying to see if there's a spread they take or something. That's how many "free" trading platforms work. I can't find that information anywhere though.
Yoshi Yokokawa
@joshdance Thanks for the comment! Downside... this is built for developer-first in mind, so currently we only offer API but not any manual trading interface. Price - this is free!
Yoshi Yokokawa
@joshdance @matthew_wean please refer to faq, but I hope that this clears up some confusion!! https://support.alpaca.markets/h...
Nick sky
Commission free sounds wonderful but what is your spread for the Dow Index for instance? There already are a lot of brokers out there that charge no commission but have swap and spread fees. If you do have spreads how do I check them out and see what they are? @yokokawa244 @umitanuki
Yoshi Yokokawa
@umitanuki @nick_kimes Maybe you are referring more to the FX or futures market, but for the US Stocks (currently Alpaca Trading API is only for the US Stocks), the spread is the National Best Bid & Offer (NBBO) and not set or charged by us but established by participants quotes on exchanges.
Nick sky
@yokokawa244 awesome thanks. Is there anyway I can see what that spread would be without funding an account?
Yoshi Yokokawa
@nick_kimes sorry if I sound like a broken radio, but NBBO and the price you get filled are not controlled by us but strictly regulated by the regulator that customers trade at NBBO prices (I originally come from the FX land where FX brokers decide spread and sometimes change around based on the market situation and to the customers hence different pricing in different brokers, but US stock market is very different and is the most strictly regulated market where prices users get must be at NBBO as regulated - of course there is high speed latency related conversation, but for regular individuals, not too relevant). I think it would make sense once you can pull the data through our API. You don’t need to open a brokerage account to use our API. You can just sign up with your email to login to the paper trading dashboard where you can create API key to start pulling the data. docs.alpaca.markets
Marc Arroyo
@yokokawa @alpacahq Hey, I am using the backtrader framework to develop algorithms and when I tried to connect to your data feed, using the free account, with the suggested api form your website, it doesn't work. Any idea what the issue might be? Here is the Github link to the documentation: https://github.com/alpacahq/alpa... p.s. Since I had an issue with the free account api I applied for the brokerage account in hopes that the different api might solve the issue. I am still waiting for approval.
Yoshi Yokokawa
@yokokawa @alpacahq @jacknap13 I hope that this works for you now! We continue to update the integration for backtrader framework as well :)
Sergio Mattei
Oh my. This seems useful!
Yoshi Yokokawa
@ftxrc Thank you Sergio! Suggestions and Questions are very much welcome!!
Hitoshi Harada
@ftxrc Enjoy happy algo trading!
Klaus Glueckert
@ftxrc @umitanuki : how are you different from Ameritrade? Is it also possible to do unlimited trades per day without being blocked by these USA-typical day trading rules? (of course given no margin trading...)
Cheng Yang
Can I transfer my assets from current broker to Alpaca without selling (ACATS)?
Yoshi Yokokawa
@iyangcheng Hi Cheng, currently we don't offer ACATS right now... but working on it!!
Cheng Yang
Thanks! a different question, is Alpaca allow business use? does it mean someone can build their own robinhood using alpaca ?
Yoshi Yokokawa
@iyangcheng You are welcome to build your bots and apps on top of our API!
Noel Jacob
Hey can Indians use this?
Brad Bitler
Awesome idea!!
Yoshi Yokokawa
@bitler glad you like it! Pls try it out!!
Mr. Bob
How do I get started!
Yoshi Yokokawa
@mr_bob Pls follow the link from this page to sign up for an Alpaca account to have access to Alpaca Trading API key! Have you been doing stock trading?!