The Ultimate Stock data api by Finage

For developers, traders, and fintech innovators looking to build sophisticated market apps, a reliable and unified Stock data api is essential. Finage delivers just that—providing seamless access to real-time, historical, and fundamental stock data through both REST and WebSocket interfaces.

Explore the full offering here: Stock data api.

📈 Why Finage’s Stock data api Stands Out

1. Comprehensive Market Coverage

• Covers 25,000+ US stocks, 3,500+ UK, 6,000+ Indian, 250+ Russian, and global equities—all under one API key  .

• Built-in support for additional asset classes: ETFs, indices, forex, crypto, DEX data, and commodities  .

2. Real-Time & Historical Data in One Place

• Instant live quotes via WebSocket, delivering ML‑timestamped price, bid/ask, volume, and aggregates  .

• Deep historical coverage: tick-level, intraday, daily, and multi-decade OHLCV data  .

• Uniform JSON responses across all endpoints ensure easy integration  .

3. Clean, Developer‑Friendly Integration

• REST endpoints and WebSocket share consistent payload structures—simplifying code and reducing bugs .

• Finage offers sample code and SDKs for languages like Python, JavaScript, Go, PHP, Ruby, .NET, and C++  .

• Live demo sandbox (“Moon Dashboard”) helps you get started immediately  .

⚙️ Integration at a Glance

A) REST API for Quick Data Access

GET https://api.finage.co.uk/last/stock/AAPL?apikey=YOUR_KEY

Returns:

{ “symbol”:”AAPL”, “ask”:118.55, “bid”:118.53, “timestamp”:1604710766331 }

B) Historical Aggregates Endpoint

GET https://api.finage.co.uk/agg/stock/AAPL/1/day/2020-01-01/2025-06-19?apikey=YOUR_KEY

Provides structured OHLCV data for backtesting and visualizations  .

C) WebSocket for Live Streaming

const socket = new WebSocket(‘wss://sub.finage.ws:7000/?token=YOUR_KEY’);

socket.onopen = () => socket.send(JSON.stringify({ action: ‘subscribe’, symbols: [‘AAPL’] }));

socket.onmessage = e => console.log(JSON.parse(e.data));

Delivers real-time ticks with sub-millisecond latency  .

🏗 Developer-Centric Features

• High Performance & Reliability: In-memory caching yields sub-1 ms latency and 99.99% uptime  .

• Global WebSocket Servers: Choose regional endpoints for optimized speed.

• Secure & Efficient: All responses are JSON over HTTPS and optionally GZIP-compressed  .

🛠 Real-World Applications

• Trading Platforms & Dashboards: Display up-to-date charts and quote tickers.

• Algorithmic Trading: Power HFT and quantitative strategies using real-time ticks.

• Backtesting Frameworks: Utilize aggregated historical OHLCV for strategy validation.

• Financial Analysis Tools: Enrich charts with company fundamentals and technical indicators  .

💡 Developer Feedback

Finage earns praise for being a modern, scalable, and developer-first stock data api, designed for low-latency, high-throughput environments  . It’s easy to integrate, richly featured, and ideal for fintech apps seeking global reach.

🧭 How to Get Started

1. Sign up for free and grab your Stock data api key.

2. Test basic REST endpoints via the sandbox.

3. Integrate WebSocket streaming for live data.

4. Explore historical endpoints for backtesting.

5. Scale your usage—upgrade to a higher plan if needed, with optional dedicated server and unlimited requests.

✅ The Final Word

Finage’s Stock data api brings an all-in-one solution: real-time quotes, deep history, global symbol coverage, and seamless integration, all backed by fast performance and developer-first tooling. Whether you’re launching a side project or powering a full-scale fintech product, this API equips you with robust market data and unmatched flexibility.

Also Read:

• Litecoin Price USD: Key Factors That Could Drive the Next Bull Run