🔌 REST API + WebSockets

Institutional-Grade Market Data API

Access real-time and historical NSE/BSE market data through a developer-friendly REST API. Built for algo traders, quants, and fintech developers who demand reliability and speed.

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⚡ 99.9% Uptime🐍 Python & Node.js SDKs📡 WebSocket support

Python

import bluechip_api as bta

# Initialize client
client = bta.Client(api_key="YOUR_KEY")

# Real-time quote
quote = client.quote("RELIANCE")
print(f"Price: ₹{quote.price}")
print(f"Change: {quote.change_pct}%")

# Historical OHLCV
df = client.historical(
    symbol="NIFTY50",
    start="2024-01-01",
    end="2025-01-01",
    interval="1d"
)

# NSE Options Chain
options = client.options_chain(
    symbol="RELIANCE",
    expiry="2025-01-30"
)

Output:

Price: ₹2,894.50
Change: +1.54%
DataFrame(365 rows × 6 cols)

API Coverage

What Data Do We Provide?

Comprehensive coverage of Indian financial markets — NSE, BSE, MCX, and currency markets.

⚡

Real-time

Real-time Quotes

Tick-by-tick price data via WebSockets. Sub-second latency for equity, F&O, and indices.

📅

Historical

Historical OHLCV

20+ years of daily and intraday data (1min, 5min, 15min, 1hr) for all listed instruments.

📋

Fundamentals

Quarterly P&L, Balance Sheet, Cash Flow, key ratios, and management commentary for 5000+ stocks.

💱

Options

Options Chain

Real-time NSE options data with Greeks (Delta, Gamma, Theta, Vega), IV, OI, and volume.

📰

Events

Corporate Events

Dividend announcements, bonus issues, AGMs, results dates, insider transactions, and bulk deals.

📊

Indicators

Technical Indicators

Pre-computed technical indicators (RSI, MACD, BB, ATR) on historical data — no need to calculate yourself.

💹

Futures

Futures Data

NSE/BSE futures data with open interest, basis, cost of carry for equity, index, and commodity futures.

🏢

Indices

Sector & Index

Nifty sectoral indices, sector rotation data, FII/DII activity, and delivery volumes by sector.

API Reference

Key API Endpoints

Simple REST API with JSON responses. Full OpenAPI documentation available for all subscribers.

GET/api/v1/quote/{symbol}Get real-time quote for a stock

RESPONSE:{ "symbol": "RELIANCE", "price": 2894.50, "change": 43.90, "pct": 1.54 }

GET/api/v1/historical/{symbol}Historical OHLCV data (daily/intraday)

RESPONSE:{ "date": "2025-01-15", "open": 2850, "high": 2910, "low": 2840, "close": 2894, "vol": 8524120 }

GET/api/v1/fundamentals/{symbol}Financial statements & key ratios

RESPONSE:{ "pe": 24.5, "pb": 2.1, "roe": 16.8, "revenue": "900000Cr", "netprofit": "80000Cr" }

GET/api/v1/options/{symbol}NSE options chain with Greeks

RESPONSE:{ "expiry": "2025-01-30", "strike": 2900, "type": "CE", "iv": 18.5, "delta": 0.52, "oi": 124500 }

🔒 Full API documentation (50+ endpoints) available after subscription

Use Cases

What Can You Build with Our API?

🤖

Algorithmic Trading

Connect our real-time WebSocket feed to your algo trading engine. Execute strategies on live NSE/BSE data with sub-second latency.

📊

Strategy Backtesting

Pull 20 years of tick data to backtest your trading strategies. Validate before risking capital with our historical API.

💼

Portfolio Analytics

Build portfolio tracking tools, risk dashboards, and P&L calculators using real-time and historical pricing data.

🔍

Stock Screener

Create custom screeners using our fundamentals API. Filter stocks by PE, revenue growth, debt ratios, and technical signals.

📱

Fintech Apps

Power your mobile app or web platform with institutional market data. Used by 50+ fintech startups in India.

🎓

Research & Education

Academic researchers and finance professors use our API for market microstructure research and course development.

Developer Tools

SDKs & Integrations

Official libraries and integrations to help you get started in minutes, not hours.

🐍

Python SDK

pip install bluechip-api

★★★★★

🟨

Node.js SDK

npm install @bluechip/api

★★★★★

📊

Excel Add-in

Live data in spreadsheets

★★★★☆

📗

Google Sheets

Market data in G-Sheets

★★★★☆

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