Alpaca
API for Stock, Options & Crypto Trading
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Hiten Shah

Alpaca Data API - Free real-time stock market data API

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Alpaca Data API is your new go-to data API for building trading apps & algorithmic trading strategies and is free to use. It provides real-time stock price data with up to 99.95% price accuracy compared to well-known expensive consolidated market data feeds.

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Yoshi Yokokawa
Alpaca
Maker
Hey Product Hunt -- I am co-founder/CEO at Alpaca, and excited to have @hnshah hunt this for us! Read on for the details... We have worked to make the Alpaca Data API your go-to data API for building your algorithmic trading strategies or trading/investing applications, and it’s free to use🤩 _____ The Alpaca Data API provides real-time stock price data with up to 99.95% price accuracy* compared to other expensive consolidated market data feeds. Alpaca Data API benefits: --- 🤓 5 Stock Exchanges, up to 99.95% Price Accuracy* 🔌 True Streaming Market Data via Websockets 🧰 Large Historical Data Set 📊 Customizable bar data What can I use this for: --- Alpaca Data API is designed for makers and developers to build trading/investing applications and algorithmic trading strategies. • Several thousands of makers and developers are already active on the Alpaca platform and slack community • Alpaca offers both paper trading and live trading environment (securities are offered by Alpaca Securities LLC) through Alpaca Trading API • Alpaca Data API works extremely seamlessly with the Alpaca Trading API How can I get it: --- Go through the ProductHunt link to sign up for an Alpaca account, so that you can access Alpaca Data API. It is available for all Alpaca users, regardless of having live trading accounts or country of residence!👍 (*as measured using 10-second snapshots of the Alpaca Data API last price vs. the SIP last price)
Will Gendron
@yokokawa244 when will options trading be available?
Yoshi Yokokawa
Alpaca
Maker
@william_gendron thanks for your question, it is on the roadmap, but not yet for the year of 2020 unfortunately... you don't trade US stocks but only options?
Will Gendron
@yokokawa244 Thank you for the reply. I invest a portion of my capital in stocks for the long term but my active trading is only in options.
Yoshi Yokokawa
Alpaca
Maker
@william_gendron that makes sense, thanks for the feedback! we will keep that in our mind :)
Jeff Withington
@yokokawa244 hey there! I’m someone who is looking to build apps/services. It seems like every potential user I talk to trades options. I’m sure you have good reasons for not prioritizing it, but no options makes it tough to build apps around.
Hiten Shah
Hunter
A free API for real-time stock market data. Can't wait to see what makers build with this!
Yoshi Yokokawa
Alpaca
Maker
@hnshah Thanks for hunting this :) This product is really for the builders who want to get involved in the stock market as a developer without paying!
Alex Loukissas
NeighborPledge
@yokokawa244 does this include mutual fund data?
Yoshi Yokokawa
Alpaca
Maker
@aloukissas hi Alex, unfortunately no. This is for the US stocks data only. you don't trade US stocks but only mutual funds?
Anthony Franklin
@aloukissas @yokokawa244 We are working on a product using machine learning to recommend statistically superior MF and ETFs.
Alex Loukissas
NeighborPledge
@anthony_franklin1 curious to see this!
Anthony Franklin
Kumar Thangudu
Link Texting
I’m curious to see how many developers on ProductHunt do algo trading or how many of them knew it was easy to start Doing so in minutes....
Yoshi Yokokawa
Alpaca
Maker
@datarade great point Kumar! we hope that with this Data API along with the staging environment (paper trading) on Alpaca makes this even easier to build lots of trading bots on US stock trading!
AM H
Can I use Polygon data from my Polygon account directly? I’m not a US citizen and can’t access Live. I have been trying to adapt some scripts - momentum - have some of it working by plugging in my Polygon API details. But looks like some of the functions aren’t directly from Polygon library though they are input as such: api.polygon.historic_agg for example. I cannot find this anywhere in the Polygon documentation! :( Looking forward to working with the new data.
Hitoshi Harada
Alpaca
Maker
@interzone You can use your Polygon account directly. Alpaca SDK supports your own Polygon API key while using Alpaca API key for trading
AM H
@umitanuki Great! Is there Alpaca-Polygon specific functions native to the Alpaca python module that can still be accessed via using my Polygon API? Such as api.polygon.historical_agg() (from algo_momentum.py) or how to locate the alternative Polygon specific Rest function?
kalyan stock
Cool updates....Looking forward to try
Yoshi Yokokawa
Alpaca
Maker
@kalyan_stock Thank you Kalyan! Pls keep us posted how it goes!! Are you planning to build trading algos or apps?
Victor G. Björklund
Whats the catch? Sounds too good to be true! :)
Yoshi Yokokawa
Alpaca
Maker
@victorbjorklund thank you Victor! the catch is that, we want the developer community in trading to grow through us offering easily accessible API products - this is a part of our goal to achieve providing financial market access to the people all over the world 💪 How are you usually using the data API, algo trading or building apps?
Alexey Kofman
Useful service, it's difficult to find even FX prices in the internet, in contrast to crypto-trading, where every exchange has its own free API. The question: where will you get money from if everything is free? what is business model?
Tibor Kiss
Alpaca
Maker
@alexeykofman Fair question! You can find our business model detailed in our about page: https://alpaca.markets/docs/abou...
Alexey Kofman
@tibkiss Can you make API feed with forex prices? Maybe you already have it, but I failed to find instrument list on your web-site...
Tibor Kiss
Alpaca
Maker
@alexeykofman we only support us equities at the moment. Our partner, polygon.io provides forex prices though. You'll be provided access to their API if you have a funded account with us.
Michael Behrns-Miller
I'm all in - I assume this replaces your previous set of apis you provided from another vendor - that worked well, I'm sure this will be even better. Thanks guys!!
Yoshi Yokokawa
Alpaca
Maker
@moodboom thank you Michael! Looking forward to hearing how it goes! How are you using the data API for usually, algo trading or building apps?
Elias Lankinen
Inspiration
What it means that it's 99.95% accurate?
Yoshi Yokokawa
Alpaca
Maker
@elias_lankinen this is from 5 top US stock exchanges achieving up to 99.95% price accuracy compared to the SIP feed (100% coverage data feed)
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