Whether you're building an algorithmic trading prediction app or charting historical stock market data for various stock ticker symbols, a finance or stock market API (Application Programming Interface) will come in handy.
In this API roundup, you'll find the top stock market APIs developers most commonly use on the Rapid API Hub to get real-time stock quotes, data feeds, and stock exchanges. Some APIs may provide data available in CSV formats.
FAQs What API should I use to get stock prices? All APIs listed in this article provide stock prices, some even include additional datapoints such as historical data and crypto data. Click Connect to API to see all of the API documentation including API calls, API requests, authentication, and endpoints. Is Nasdaq API free? The Nasdaq Stock Pricing API listed on the Rapid API Hub is free to use. Check it out here. How much does the API cost? This article covers both free APIs and paid stock APIs, and the cost and pricing ranges from $0-$329/month. This article will dive into some of the best paid and free stock APIs for developers. What is the best stock market data API? After reviewing over 75 stock market data APIs, we found these 8 APIs to be the very best and worth mentioning:After reviewing over 67 stock market data APIs, we found these 8 APIs to be the very best and worth mentioning:
| Twelve Data | Best for real-time and historical data | Connect to API |
| YH Finance | Best for financial summaries | Connect to API |
| Yahoo Finance | Best for stock market data | Connect to API |
| RealStonks | Best for real-time stock prices | Connect to API |
| Latest Stock Price | Best for the latest stock prices | Connect to API |
| Alpha Vantage | Best for historical stock, FX, and crypto | Connect to API |
| Stock and Options Trading Data Provider | Best for US stocks and options | Connect to API |
| Finage Currency Data Feed | Best for currencies, metals, and stocks | Connect to API |
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.
The YH Finance Complete API helps developers query stocks, quotes, movers and other financial summary. All endpoints include:
The official Yahoo Finance API was deprecated/discontinued, but there's an unofficial API available on the Rapid API Hub that provides all the data you see on Yahoo Finance.
The API has multiple endpoints that provide data such as:
The RealStonks API provides developers the real-time stock price of any NASDAQ-listed stock, along with some other parameters.
The Latest Stock Price API provides developers with the latest NSE stock price. Price update frequency is 1 min.
Alpha Vantage provides an API service for real-time and historical data on stocks, forex (FX), and digital/cryptocurrencies. Endpoints include:
This Stock API provides data for US listed stocks and ETFs through a RESTful service. This is a cloud based API with a simple interface returning data in JSON format.
The API has 2 endpoints:
Finage is a financial data provider company. You can request over 700+ symbols including currencies, metals, stocks, and cryptocurrencies. You can call the last prices, convert currencies between each other, and get the historical data.
Learn more here.
To get live stock market data, you'll need a Rapid user account.Sign up today, it's free.Then search for or navigate to one of the APIs listed in this article. Subscribe to the API of interest and begin testing their endpoints. Many of the stock APIs here provide access to real-time data.
Does Yahoo Finance have an API?Unfortunately, Yahoo Finance deprecated their official API. However, there's an unofficial Yahoo Finance API available on RapidAPI. It provides data such as:
According to Quora: There seems to be some documentation on github & npmjs that shows you how to interact with their private API:
But there's no official public API on their site.You might also want to consider using the unofficial Yahoo Finance API or browsing the full list of stock market APIs if you’re looking for stock market data.
| API | Main Functionality | Popularity Score | Latency | Success Rate |
|---|---|---|---|---|
| Twelve Data | Real-time & historical data | 9.9/10 | 254ms | 100% |
| YH Finance | Best for financial summaries | 8.5/10 | 11513ms | 85% |
| Yahoo Finance | Stock market data | 9.9/10 | 1891ms | 96% |
| RealStonks | Best for real-time stock prices | 9.8/10 | 3903ms | 100% |
| Latest Stock Price | Best for the latest stock prices | 9.8/10 | 916ms | 100% |
| Alpha Vantage | Crypto, forex, and stock data | 9.9/10 | 774ms | 100% |
| Stock and Options Trading Data Provider | Options and straddle | 9.6/10 | 3249ms | 100% |
| Finage Currency Data Feed | Currencies, metals, stock, & crypto | n/a | 80ms | n/a |
All APIs mentioned above and accessible on the Rapid API Hub are available in the following programming languages:
To learn more how to get started with RapidAPI SDKs, visit our docs.
What do you think is the best stock market API for financial data? Comment below!
You should also consider https://Polygon.io to be on this list.
Polygon.io is really slow and their websockets are not stable. We are getting socket error EVERY week. So, NEVER AGAIN.
I have the same problem with Polygon.
When I make an API request to polygon, it give me 500 server error. It is a shame. It is impossible to use this data in production. Also, other endpoints are not working too for crypto and forex.
Here you can see the error;
https://i.imgur.com/fXzvXiB.png
I would heavily recommend having a look at FactSet APIs
Especially for accurate sector data, geographic revenue exposure, estimates, ownership, and ESG data!
Twelve API is extremely bad. So slow and it’s hard to understand their endpoints. Customer support is slow, bad, and disrespectful. I will never use it again. I’ve wasted my time and my money there. You can not build any product with them. Yahoo APIs are better.
Thanks so much for this article. It’s really helpful.
I also suggest using IXBRAnalyst to get real-time access to financial data in excel on any of your devices.
Problem with yahoo, is i get a lot of data that is just zeros, and it messes up the entire analysis.
I’m using the newsfilter.io stock market news API. They have a query and real-time stream API and an API to render article content. I’m pretty happy with their news source coverage (I’m a day- and swing-trader), much better than any brokers news feed I’ve seen so far (and I’ve seen many…..). Recently started using their Discord news bot for our trading community too. Works like a charm so far.