Cursor pagination for market data APIs: pull years of 1-minute OHLCV bars without gaps
How cursor-based pagination works in a market data REST API, with a Python loop that pulls years of 1-minute stock bars and handles gzip, rate limits, and gaps.
Tag · historical data
historical data
8 posts on historical data from the SiftingIO market data blog, spanning real-time and historical coverage across stocks, forex, crypto, commodities, and on-chain venues.
Posts tagged historical data
How market data API pricing works: a buyer's guide for developers
Market data API pricing explained: per-market tiers, call quotas vs rate limits, WebSocket limits, history depth, overage, free tiers, and redistribution rights.
Plotting trades on a price chart: get the exact 1-minute bar at the fill time
Trade journals and portfolio trackers need the 1-minute bar at each fill time. Why free feeds fail on backfill, and how to fetch one bar shape across asset classes.
Crude oil prices API: Brent (UKOUSD) and WTI (WTIUSD), historical bars and live quotes
Pull Brent (UKOUSD) and WTI (WTIUSD) crude oil prices from one API: historical OHLCV bars with cursor pagination, REST snapshots, and WebSocket streaming.
Commodities market data API: backfill historical bars, then stream live prices
Pull historical OHLCV bars for gold, crude, and other commodities over REST, stream live prices over WebSocket, and handle the seam where they meet.
Why two backtests of the same strategy disagree: the historical price data faults to check first
Five ways historical price data silently corrupts a backtest: adjustment method, venue-dependent highs and lows, gap policy, session cuts, and restated bars.
Building Financial AI Agents With Real-Time and Historical Market Data
Why financial AI agents need structured market data APIs instead of web search, and how to wire prices, OHLCV, and fundamentals in as agent tools.
Joining OHLCV bars and XBRL fundamentals for a US stock ticker
How to pull historical OHLCV bars and XBRL fundamentals for one stock ticker from SiftingIO, and avoid the split and fiscal-year pitfalls.