🏠 Getting StartedOverview

Welcome to DataAPI

Welcome to the DataAPI Documentation Center! This is your premier destination for exploring global financial data services, providing comprehensive tutorials, API overviews, feature introductions, and rich application scenarios. Whether you’re new to financial data APIs or seeking deep integration solutions, this is your ideal choice. Our documentation is a valuable resource for mastering financial data APIs and fully leveraging their capabilities.

What is DataAPI

DataAPI (https://dataapi.io) provides complete financial market data solutions, covering real-time and historical data interfaces for stocks, cryptocurrencies, forex, precious metals, and global indices. Designed specifically for exchanges, developers, quantitative teams, fintech companies, and professional institutions, we are committed to providing high-quality, low-latency financial data services to users worldwide.

🌟 Key Features

📊 Comprehensive Coverage

Provides complete financial market real-time and historical data support including stocks, cryptocurrencies, forex, precious metals, and global indices, covering major global exchanges and markets.

⚡ Multiple Access Methods

Offers both REST API and WebSocket dual access methods, ensuring low-latency, high-reliability data transmission to meet technical requirements for different scenarios.

🛡️ High Reliability

Authoritative and reliable data sources with stable and efficient service architecture, ensuring data accuracy, completeness, and real-time performance, providing solid support for critical business operations.

🎯 Customized Services

For professional institutions and fintech companies, we provide customized data services and solutions to meet the personalized needs of clients of different scales.

👥 Target Audience

Developers

Individual developers and technical teams looking to build financial applications, trading tools, and market analysis systems.

Quantitative Teams

Professional quantitative teams dedicated to developing algorithmic trading strategies, risk management systems, and quantitative analysis tools.

Fintech Companies

Innovative enterprises providing fintech solutions, wealth management services, and investment platforms.

Professional Institutions

Banks, brokers, funds, and other financial institutions that need accurate and timely financial market data support.

🚀 Use Cases

Building Trading Analysis Tools

Based on real-time and historical data, develop professional trading analysis tools for technical analysis, market trend prediction, and investment decision support.

Developing Quantitative Trading Strategies

Using high-frequency data and historical backtesting to design and optimize quantitative trading algorithms and build automated trading systems.

Providing Fintech Services

As data infrastructure, provide customers with fintech products and services such as wealth management, investment consulting, and risk management.

Institutional Data Support

Provide professional financial institutions with real-time market data and research analysis support to assist investment research and business decisions.

📈 Product Categories

Stock Data

Coverage: Global major exchanges (NYSE, NASDAQ, HKEX, SSE, SZSE, etc.)

  • Real-time stock quote API, stock market data API
  • Stock historical K-line data: daily K, monthly K, hourly K, minute K data
  • Stock tick data, order book data, transaction details
  • Representative Products: Apple (AAPL), Tesla (TSLA), Tencent (0700.HK), etc.

Cryptocurrency Data

Coverage: Mainstream exchanges (Binance, Coinbase, OKX, Kraken, etc.)

  • Real-time cryptocurrency quote API, digital asset market data API
  • Cryptocurrency historical K-line data: daily K, monthly K, hourly K, minute K data
  • Cryptocurrency tick data, order book data, trading depth
  • Representative Products: BTC/USDT, ETH/USDT, ADA/USDT, and 10,000+ trading pairs

Forex Data

Coverage: Major currency pairs and emerging market currencies

  • Real-time forex quote API, currency exchange rate data API
  • Forex historical K-line data: daily K, monthly K, hourly K, minute K data
  • Forex tick data, interbank market data
  • Representative Products: EUR/USD, GBP/USD, USD/JPY, AUD/USD, etc.

Global Indices

Coverage: Global major stock indices and economic indicators

  • Stock index real-time data API, index market quote API
  • Index historical K-line data: daily K, monthly K, hourly K, minute K data
  • Index constituent stock data, weight information
  • Representative Products: Dow Jones Index (DJI), S&P 500 (SPX), NASDAQ (IXIC), etc.

🚀 Quick Start

1. Get API Key

Visit DataAPI Console to register an account and get your exclusive API key.

2. Basic Call Example

// Get Apple stock real-time data
const response = await fetch('https://api.dataapi.io/v1/stocks/kline', {
  method: 'GET',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    ticker: 'AAPL',
    klineType: '1m',
    startTime: '2024-01-01',
    endTime: '2024-01-02',
    limit: 1000,
    token: 'YOUR_API_KEY'
  })
});
 
const data = await response.json();
console.log(data);

3. Stock (AAPL) WebSocket Real-time Data

const ws = new WebSocket('wss://api.dataapi.io/v1/stock');
 
ws.onopen = function() {
  // Authentication
  ws.send(JSON.stringify({
    action: 'auth',
    params: {
      token: 'YOUR_API_KEY'
    }
  }));
  
  // Subscribe to real-time data
  ws.send(JSON.stringify({
    action: 'subscribe',
    params: {
      ticker: 'AAPL',
    }
  }));
};
 
ws.onmessage = function(event) {
  const data = JSON.parse(event.data);
  console.log('Real-time data:', data);
};

📋 API Types

REST API

Traditional HTTP-based API interface, suitable for:

  • Getting historical data and K-line charts
  • Batch data queries and analysis
  • Basic data integration and scheduled tasks

WebSocket API

Real-time data stream based on WebSocket, suitable for:

  • Real-time price push and monitoring
  • High-frequency trading and algorithmic strategies
  • Real-time charts and dashboard applications

🔐 Authentication Method

All API requests need to include token in the Body:

token: YOUR_API_KEY

🎯 Next Steps

📞 Contact Us

DataAPI is committed to providing professional and reliable financial data services to developers and financial institutions worldwide, empowering your fintech innovation journey.

Quick Start