Alpaca

Leverage the commission-free API of Alpaca to build your financial products. Your developers can easily manage stocks, algorithms, and capital using the single integrated system. Its trade API is a REST interface connecting applications with brokerage service in real-time.

Access account data, orders, assets, positions, and many more. It’s paper trading API also allows you to test your codes, algorithm resets, etc. and offers a Streaming API that uses WebSockets to deliver real-time updates regarding trades.

It offers 2-factor authentication to secure all your API. You can also benefit from short selling and margins with advanced investing options, and it also supports trading strategies. Using a testing environment, you can check your codes and work before product deployment or making the changes live.

Alpaca facilitates efficient trading by allowing you to trade directly from the TradingView chart, which requires no tab switching or extra clicks. It offers powerful tools to boost your production like advanced order types like OCO, MOO, IOC, and MOC.

MorningStar API

MorningStar API is a good API to manage if you have lots of apps that you need to integrate with. The combination of their useful blogs and an easily navigable user interface makes for a good user experience.

Representation: As you can see from the screenshot, the data representation is incredibly simple to understand. MorningStar does a good job of ensuring each record comes in sequence rather than a complicated mess. Similar to FMP, the API provides data on crypto, forex, and some local markets.

Purchase Access: An unfortunate aspect of the MorningStar API is the challenge of getting access. To get access you must connect with MorningStar personnel, agree on a price, before finally being able to use this API. This is in stark contrast to FMP stock API which you can easily sign up for directly on the website.

Tradier API

As you may well have guessed from the name, Tradier API is both a data API and an online broker. Getting the subscription for their trading accounts, automatically gives you access to their data API.

Multiple Endnotes: Tradier does a great job of making integration with applications requiring stock data tracking straightforward. The broker platform gives traders great optionality when it comes to trading views and Tradier has over 100 endpoints updated per minute.

The smart API key authenticates endpoints during the performance which makes it easy to get going with and quite effective. Trading Platform: Unlike the other APIs aforementioned, the Tradier platform gives you the ability to make trades. Though there is a paywall to make any trades, its fee structure is good for low and high trade volume traders. The $30 per month subscription plan gives you commission-free trading of both equities and options - this subscription also allows full access to their real-time market data. The free option only allows access to delayed market data.

Intrinio

By neatly using the REST infrastructure, Intrinio can ensure that unique requirements and API calls made by users are quickly delivered in the JSON format. Once created users are quickly directed to multiple endpoints to get their data.

Hundreds of Datasets: One of the great strengths of this API is that with the one interface, they provide access to lots of different data you might require. They also provide their own algorithms that use machine learning and AI to arrange the data ensuring they provide sequenced and updated information.

Purchase and Access: Similar to FMP, Intrinio offers a great free plan to get you started. If you do want more data feeds then the paid plans are definitely recommended. Whilst FMP platform allows you to get going right away, the set up for Intrinio is quite challenging and requires you to use lots of different documentation. For programming beginners, this becomes quite a large barrier and for experts, we think it just seems unnecessary.

Twelve Data

The Twelve Data API provides financial data for developers to enter the world markets. Instant access for real-time and historical data of stocks, forex, crypto, ETFs, indices, and more. Twelve Data is the fastest-growing company in the financial data industry based on 3 simple postulates:

• Coverage

  All kinds of assets including stocks, forex, crypto, ETFs, indices. Equity data is available from all 5 continents, in real-time and historical retrospective.

• Professional

  Solutions and tools that help customers to focus on product development and stop thinking about the data sources.

• Affordability

  Data should be available for everyone and for every need, therefore we offer the most generous free plan in the industry with options to increase the limits.

Marketstack

Whether you want historical market data, intraday, or real-time data, Marketstack is there for you! Get an easy-to-use REST API interface to obtain stock market data. To facilitate simplicity, it allows you to request data through HTTP GET and get response data in JSON format. Here, you have the flexibility to use a free or paid version according to your necessity.

With Marketstack, you can get 30+ years of precise historical data to drive meaningful insights. Integrate this API easily and utilize over 125,000 stock tickers across the globe from 72 stock exchanges, including NYSE, Nasdaq, ENX, TYO, ASX, and more

The REST API of Marketstack is simple yet scalable and robust, capable of delivering up to 100% uptime. Just get started within 5 minutes and continue exploring new horizons. If you want to use its free plan, you don’t need a credit card, payment, or contract. You can get instant access to the API and enjoy up to 1000 requests per month with end-of-day stock data, even in the free plan.

Marketstack leverages state-of-the-art technologies with great scalability of cloud infrastructure to build the stock API. As a result, it can effortlessly handle request volumes of different sorts – from hundreds to millions on a single day.

When it comes to security, Marketstack offers bank-level security by encrypting each byte with industry-level 256-bit HTTPS encryption. With extensive documentation like code examples and demo requests available on API, you can start using it without any hassle.

Conclusion

In this article, we explored the best stock market APIs, obtaining market data through stock APIs is easy, simple, and predictable. But you also need to ensure you get the updated and accurate data at the right time. The APIs mentioned above come in handy to meet this requirement and shape your financial products the way you have desired.