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The stock market industry has witnessed huge technological adoption recently with the surge in stock market APIs.
Innovative technologies like cloud-based program programming interface (API) are inflowing the landscape for all good reasons.
But why is everyone talking suddenly about Stock APIs?
you’re able to trust Geekflare
At Geekflare, trust and transparency are paramount.
It is backed by Y Combinator, a pioneering Silicon Valley based venture capital firm.
It also has a large open-source ecosystem, with over 700 GitHub libraries built on top of its APIs.
Alpha Vantage ensures smooth API integration without friction.
It supports Python, PHP, Java, Javascript, and more.
You also have the option to get data in JSON formats.
Get started and start building your financial products using the high-quality data Alpha Vantage offers you.
you’ve got the option to browse theAPI documentationto understand their API library and keep exploring.
Marketstack
Whether you want historical market data, intraday, or real-time data, Marketstack is there for you!
Get an easy-to-use REST API to obtain stock market data.
Here, you have the flexibility to use a free or paid version according to your necessity.
With Marketstack, you’re free to get 30+ years of precise historical data to drive meaningful insights.
Just get started within 5 minutes and continue exploring new horizons.
Marketstack leverages state-of-the-art technologies with great scalability of cloud infrastructure to build the stock API.
When it comes to security, Marketstack offers bank-level security by encrypting each byte with industry-level 256-bit HTTPS encryption.
With FMPs versatile pricing plans, you’re free to scale your tool and business cost-effectively.
Unlike traditional services, Finage doesnt rely on direct exchange data for stocks, giving users a powerful advantage.
Furthermore, Finage distinguishes itself with unparalleled ease of integration and user-friendly access.
Finages US and global stock market API is the key to unlocking the potential of real-time financial information.
Barchart
Build your products with more profound insights into the stock market using the Barchart OnDemand.
It provides you with flexible and cloud-based APIs to strengthen your workflows, products, and applications.
With Barchart, you could get power charts representing historical and real-time market data.
In addition, you could create dynamic tools and applications without hassle.
With built-in scalability with the cloud, you’re free to accelerate your workflows.
In addition to cloud, Barchart maintains physical data centers as well to meet specific client requirements.
Those are Equinox-based centers with low latency and physical backups.
Thus, you have the freedom to choose any of the data center models you want.
Utilizing built-in security systems and server virtualization, Barchart helps scale up its services in no time.
Barchart OnDemand is compatible with multiple operating systems such as Linux, Windows, Android, and iOS.
Finnhub
Utilize the powerful stock market API of Finnhub Stock API to obtain data for building your financial products.
It gives you real-time WebSocket and RESTful APIs for stock data, cryptocurrencies, and fiat currencies.
Finnhub provides financial statements in detail for companies across the globe from the past 30+ years.
Besides, you also get dividends data of 30 years.
it’s possible for you to access to call transcripts of over 20 years of earnings and download audio.
Do you want to know the history of acquisitions and mergers?
The API makes it possible!
It provides current stock market news to understand all the happenings at present.
Study the COVID-19 disruptions on the market through the real-time statistics of the pandemic.
Furthermore, Finnhub promises 99.99% uptime, along with an SLA and automatic scalability.
EOD Historical Data
Obtain stock market data by utilizing the affordable and flexible services of EOD Historical Data.
It offers historical and delayed data, end-of-day, technical, fundamental, dividends, and splits.
It supports 60+ stock exchanges worldwide at the moment.
They also have ten years or last 20 quarters of data belonging to some minor exchanges.
It provides accurate and reliable data from 15+ sources, covering a large number of stock exchanges.
Get superfast support anytime via chat and email in case anything goes wrong.
They usually solve 99.99% of issues in 24 hours or less.
EOD Historical Data facilitates flexible prices where you have to pay for the services you use.
With IEX Cloud API, you get over 2 billion messages per day with 28ms latency on average.
All your data is tightly secured with PCI and DSS compliance.
Its platform is reliable, with 99.95% SLA, allowing you to build products without worries.
Premium partners of IEX Cloud constantly supply powerful enterprise-level data.
you might also seek premium support by upgrading your plan.
To deliver precise end-of-day prices, it uses a proprietary framework for error-checking to collect clean data.
This framework also helps them with missing events and for creating redundant feeds.
Tiingo News feeds contain 16 million useful articles curated based on years of research.
These articles are a treasure with historical market data from 20+ years.
The news feed is a source of tagged content containing financial and non-traditional news.
Tiingos Crypto API includes multiple exchanges with a stream of valuable data, both historical and intraday data.
you might segment exchanges and currencies to use data the better way.
With Forex and FX feed, you’re free to access tier-1 banks along with institutional-level liquidity.
Access their cross-connect to get IEX stock API in real-time, exhibiting high-performance and minimal latency.
Tiingo deploys fast servers and consistent uptime with optimized memory caching.
It also continuously performs data audits to provide uninterrupted data delivery.
It allows you to download precise historical market data from the past 5-50 years.
In addition, you get aggregated, industrial, and economic data.
Get data for holdings, metadata, and analytics for ETFs.
It also offers 18+ years of Forex data, including all the market activities and prices.
It offers simple calls to retrieve historical stock prices in CSV, JSON, or XML format.
The API can handle complex datasets, such as quarterly percentage changes in stock prices.
On the portal, users can access hundreds of free datasets from various sources.
Users can request more datasets, and new data is uploaded on a weekly basis.
Whether you want historical or real-time data, you might get unlimited access to them.
Polygon also provides currency APIs that include data from 1000+ Forex pairs and ten banking organizations.
It saves your developmental time that you’ve got the option to invest in integration.
To simplify things, Polygon offers sample codes in different languages.
Polygon gives you reliable and fast data with ultra-low latency of less than one millisecond.
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.
Its 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.
That concludes my list of the best stock market API.
Before you make your choice, though, it might be better to understand stock market APIs better.
It is because stock APIs can connect these data consumers effortlessly with accurate and relevant data sources.
Stock APIs aim at facilitating data sharing, access, and payment transactions.
Besides, you’ve got the option to easily sync data using these APIs across different applications.
So, what happens without a stock API?
How to leverage stock market data to build financial products?
It can also add other data such as offer sizes, traded volume, and so on.
Stock APIs help you obtain those time-sensitive data so you could take actionable insights into building your financial products.
However, there are some pitfalls associated with APIs, as all of them are not created equal.
Available API types
APIs can be of different types Rest API, FTP, TCP, etc.
Choosing the one according to your data requirements and speed would be wise.
With TCP, theres no need to request for fetching the data, contrary to Rest API.
This way, you might save a few bucks as well.
They do so to maintain their competitive edge.
Hence, you oughta think about what frequency you want and quote accordingly.
For example, if you request for one call/minute, they will update data only after every minute.
Latency
Some latency might follow in-between data updates.
The delay can range from some milliseconds to seconds.
Conclusion
Obtaining market data through stock APIs is easy, simple, and predictable.
But you also need to ensure you get updated and accurate data at the right time.
