Blog - AllTick Real-time Market Data API

How to Prevent Data Out-of-Order Issues When Subscribing to Multiple Currency Pairs via Forex API?
In real-time forex trading systems, subscribing to multiple currency pairs seems like a simple scalability feature. However, once deployed in production, a subtle but critical issue quickly emerges: data out-of-order…

What is the Difference Between an FX API and a CFD API?
In modern trading systems, data connectivity is critical. Whether you are building a forex trading terminal, a multi-asset brokerage system, or a quantitative strategy engine, understanding the difference between an…

How to Perform Crypto Quantitative Backtesting? A Guide to Historical Data and Strategy Evaluation
Many failed backtests are not caused by the strategy itself, but by the fact that the data layer is already biased from the beginning. In cryptocurrency markets, this problem becomes…

Crypto Market Making Strategy: Dynamically Adjusting Quotes Using Order Book Imbalance
Market making is essentially a constant balancing act between execution probability and risk control. If your quotes are too conservative, you won’t get filled. If they are too aggressive, you…

What Each Tick Tells You: Interpreting Price, Volume, and Timestamp in Tick-by-Tick Stock Data
Most people look at the market through a compressed lens—candlesticks, indicators, moving averages, and other aggregated views. They are useful, but they already abstract away the real trading process. The…

How to backtest strategies using free forex historical data API without missing weekend gaps?
On the surface, backtesting a forex strategy seems simple: get the data, run your logic, check the results. But the reality is, the real headache isn’t the strategy itself—it’s the…

A complete guide to obtaining US stock historical data via API: from 1-minute candlesticks to daily coverage
Working with market data can look simple on paper—“just fetch the history,” right? In practice, complexity quickly emerges. Missing values, misaligned timestamps, inconsistent formats—these issues rarely announce themselves in advance….

Is There an API for Stock Market Data? A Practical Guide to Historical Data Depth for Backtesting
When you start building trading systems or experimenting with quantitative strategies, one question tends to appear very early on: where does the market data actually come from? APIs for stock…

How to reconstruct the order book from a stock market data API’s incremental depth update messages?
At first glance, this sounds like one of those things that should be simple. Feed comes in, book gets built, done. Not quite. In practice, reconstructing an order book from…

How to Use KDJ Stochastics to Determine Entry Points for Gold (XAUUSD)?
When I first started exploring gold trading, one thing became immediately clear: timing matters more than anything else. Jumping in too early or too late can turn what looks like…

How to avoid holiday candlestick gaps when retrieving historical gold prices via a precious metals API?
If you’ve worked with gold historical data long enough, you’ve probably hit this weird situation where everything looks fine at first glance… but something feels off. Charts suddenly “jump”, flat…

Historical gold price api data gaps: what to do with missing holiday candles?
Somewhere between a clean dataset and a broken chart, there’s usually a holiday hiding in plain sight. You notice it when your gold chart suddenly develops these awkward little voids—like…
Real-time Market Data API
Comprehensive high-frequency data API covering Hong Kong stocks, U.S. stocks, futures, forex, and cryptocurrencies.
- Real-time quotes & historical data
- Tick-level records
- Ultra-low latency
- 99.95% reliability
- Easy API integration