Mockaroo
MockTurtle.net
DDL to Data
SQLable
Random Data
JSON Generator
Generate Data
Ask in plain words. DataMaker finds valid SAP records, inside your network.

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

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 | automators.ai | twelvedata.com |
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Twelve Data Demo Review
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Straightforward to use and powerful API to get financial data in real-time and complete historical data. Best in class Python package.
Recommendations tracked on public social media and blogs since March 2021.

Tracking DataMaker since Nov 2026.
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
When comparing DataMaker and Twelve Data, 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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Generate realistic random JSON data through a simple and intuitive GUI.
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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 DataMaker or Twelve Data:

Turn SQL schemas into realistic test data in seconds. Perfect for testing, demos, and development.
Compare DDL to Data to DataMaker or Twelve Data:

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 DataMaker or Twelve Data: