Index Real-time Data API

Covering major global indices. Real-time streaming for NASDAQ, S&P 500, Hang Seng Index & SSE Composite.

Market Coverage

Exchange / Category Symbols Data Types Frequency
US Indices ~4,200+ Tick Real-time
Asia-Pacific Indices ~5,500+ Tick Real-time
European Indices ~3,000+ Tick Real-time

Technical Specs

Avg Latency
< 80ms
Protocol
WebSocket / REST
Data Types
Tick (Index Value)
Historical
Up to 10Y K-line
Push Freq
Tick-by-tick / 1s snapshot
Uptime
99.9% SLA

Code Examples

Quick Start

# pip install websocket-client
import websocket
import json

api_key = 'your_api_key_here'
ws_url = f'wss://api.tickdb.ai/v1/realtime?api_key={api_key}'

def on_open(ws):
    ws.send(json.dumps({
        'cmd': 'subscribe',
        'data': {
            'channel': 'ticker',
            'symbols': ['SPX', 'NDX', 'HSI']
        }
    }))

def on_message(ws, message):
    data = json.loads(message)
    print('Received:', data)

ws = websocket.WebSocketApp(ws_url, on_open=on_open, on_message=on_message)
ws.run_forever()

Full documentation available at API Documentation

Comparison

Comparison based on publicly available documentation as of April 2026. Please refer to each provider for the latest information.

Provider Real-timeWebSocketIndex CoverageHistoricalChinese DocsPrice
Yahoo Finance Unofficial API, widely used by community โš ๏ธ Near real-time, but unofficial API with no SLAโŒโœ… Broad global index coverageโœ… Multi-year historical dataโŒUnofficially free; no stability guarantee
Alpha Vantage Legacy financial data API โš ๏ธ Real-time on paid plans; free has delayโŒ REST onlyโš ๏ธ Partial global indicesโœ… 20+ years of historyโŒFree 25/day; from $49.99/mo
TickDB Unified multi-market API โœ… Sub-100msโœ…โœ… US/Asia-Pacific/European major indicesUp to 10Y K-lineโœ… Chinese-firstFree tier; paid unlocks all

Use Cases

Derivatives Pricing

Real-time index data powering options/futures pricing models and Greeks calculations.

Global Macro Dashboard

Subscribe to US, European, and Asia-Pacific core indices simultaneously to build a cross-timezone real-time macro monitoring panel.

ETF NAV Deviation Monitoring

Compare real-time index values against ETF trading prices to detect premium/discount anomalies.

Choose Your Plan

All paid plans support monthly / quarterly / semi-annual / annual billing. Prices below are annual (20% off)

๐Ÿ”ฅ Save 20% Annually

Free

Free 7-Day Trial

 

  • Selected symbols*
  • 5 concurrent subscriptions
  • Real-time quotes
  • Real-time K-line
  • 1 WebSocket connection
  • 30 req/min API calls
  • Email support
Start Free
-20%

Starter

$99/mo
$79 /mo

Billed annually $948

  • All symbols
  • 50 concurrent subscriptions
  • Real-time quotes
  • Real-time K-line
  • Real-time order book
  • Real-time trades
  • Night session data
  • 1 year historical data
  • 1 WebSocket connection
  • 60 req/min API calls
  • Email support
Subscribe Now
-20%
Most Popular

Professional

$299/mo
$239 /mo

Billed annually $2868

  • All symbols
  • 300 concurrent subscriptions
  • Real-time quotes
  • Real-time K-line
  • Real-time order book
  • Real-time trades
  • Night session data
  • 3 years historical data
  • 3 WebSocket connections
  • 600 req/min API calls
  • Telegram support
Subscribe Now
-20%

Enterprise

$899/mo
$719 /mo

Billed annually $8628

  • All symbols
  • 5000+ concurrent subscriptions
  • Real-time quotes
  • Real-time K-line
  • Real-time order book
  • Real-time trades
  • Night session data
  • 10 years historical data
  • 10 WebSocket connections
  • 1800+ req/min API calls
  • Telegram support
Subscribe Now

FAQ

Which global indices does TickDB cover?
US (S&P 500, NASDAQ, DJIA), Asia-Pacific (Hang Seng, SSE, SZSE, Nikkei), European (DAX, FTSE 100, CAC 40), and other major global indices.
Is index data real-time?
Yes. Real-time index data is streamed via WebSocket with continuous updates during trading sessions.
Does TickDB provide index constituent data?
Individual stock quotes for index constituents can be accessed through the corresponding market APIs (US stocks, HK stocks, A-shares). Index constituent lists are not yet available but are planned for a future release.
Does the free plan include index data?
Yes. The free plan includes real-time data for select major indices with push frequency limits. Upgrade to unlock all indices and higher push frequencies.
Yahoo Finance already has free index data โ€” why use TickDB?
Yahoo Finance's API was officially discontinued in 2017. Community tools like yfinance use unofficial reverse-engineered endpoints that can break at any time with no SLA guarantee โ€” unsuitable for production. TickDB provides stable WebSocket real-time streaming with formal SLA commitments, plus coverage across multiple asset classes.

Start Streaming Real-time Market Data

Sign up for a free API Key. WebSocket real-time streaming. Get started in minutes.