
Alpha Vantage
Polygon.io
Financial Modeling Prep
Open Exchange Rates
FinancialData.net
FinFeedAPI
CoinGecko
The simplest and most effective way to access both realtime and historical stock, forex, cryptocurrency data, and over 100 technical indicators.

Deno
Full-stack Javascript Components for one-dev armies

Which is more popular?
Based on our record, Twelve Data seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | twelvedata.com | nullstack.app |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Twelve Data Demo Review
Full-stack with Nullstack - Part 3
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Twelve Data and Nullstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Straightforward to use and powerful API to get financial data in real-time and complete historical data. Best in class Python package.
We have no reviews of Nullstack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I chose Twelve Data for stock and crypto prices. Free tier: 800 calls per day. My math: 5 symbols × 96 fetches/day (every 15 minutes) = 480 calls. Comfortable margin. - Source: dev.to / 3 months ago
I am using TwelveData forex API for Extraction of raw data from the financial markets in JSON format. - Source: dev.to / over 1 year ago
Twelve Data provides extensive financial market coverage, making it ideal for those looking for a free API for building a stock portfolio tracker. - Source: dev.to / over 1 year ago
Tracking Nullstack since Apr 2021.
When comparing Twelve Data and Nullstack, you can also consider the following products.

Alpha Vantage offers free APIs in JSON and CSV formats for realtime and historical stock and forex data, digital/crypto currency data and over 50 technical indicators.
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A secure runtime for JavaScript and TypeScript built with V8, Rust, and Tokio.
Compare Deno to Twelve Data or Nullstack:

Polygon.io offers streaming realtime data for stocks/equities, ETFs, Indecies and Forex/Currencies including crypto currencies. Our Real-Time Stock Data APIs help you build the future on fintech.
Compare Polygon.io to Twelve Data or Nullstack:

Access all stocks discounted cash flow statements, market price, stock markets news, and learn more about Financial Modeling. Learn M&A, LBO, DCF, Comps, and Financial Statement Modeling thought concrete examples
Compare Financial Modeling Prep to Twelve Data or Nullstack:

Free, hourly-updated exchange rates - a simple, accurate, open-source JSON API. Free for personal use, a bargain for everybody else.
Compare Open Exchange Rates to Twelve Data or Nullstack:

Stock Market and Financial Data API
Compare FinancialData.net to Twelve Data or Nullstack: