406 Not Acceptable gzip API error: send Accept-Encoding: gzip and decode the reply
Fix SiftingIO's 406 gzip_required error in curl, Python, Node and Go. Learn which clients decode automatically and when to handle gzip yourself.
Tag · rest api
rest api
21 posts on rest api from the SiftingIO market data blog, spanning real-time and historical coverage across stocks, forex, crypto, commodities, and on-chain venues.
Posts tagged rest api
How to use a market data API in a web app without exposing your API key
Keep your market data API key out of browser code. Build a server-side quote route with allowed symbols, access checks and safe error handling.
n8n price alert workflow: message Slack only when a symbol crosses a level
Build an n8n price alert for Slack with market-hours checks, input validation, and state that detects level crossings between sampled prices.
Cryptocurrency API: real-time and historical crypto data aggregated across venues
Cryptocurrency API guide: stream real-time crypto prices over WebSocket and pull 15+ years of historical OHLCV over REST, aggregated across venues.
Insider trading data API: pull Form 4 buys, sells, and grants for US stocks
Pull Form 4 insider transactions for US stocks from a REST API, decode transaction codes P, S, M, and F, and separate open-market buys from routine noise.
Forex session overlaps: what happens to spreads, volume, and volatility
The four forex sessions in UTC, their overlaps, why London to New York carries the most volume, and how spreads behave at rollover and in the quiet hours.
How to get historical stock price data from a REST API (daily and intraday OHLCV)
How to pull daily and intraday OHLCV stock bars from a REST API: request format, response fields, intervals, cursor pagination, history depth, and pitfalls.
Technical signals API: pull RSI, MACD, and moving average summaries in one REST call
SiftingIO's technical signals API: live RSI, MACD, and moving average summaries plus per-bar signal history with cross events, over two REST endpoints.
Stock portfolio tracker API: compute unrealized P&L from bars and live quotes
Build a stock portfolio tracker with a US stocks API: positions as data, daily-bar backfill, unrealized P&L from live quotes, and a WebSocket upgrade path.
Market hours API: check whether a market is open before your code polls it
Use a market hours API to check open status, holiday calendars, and half days across 23 markets so your polling code stops serving stale prices.
How to give an AI agent market data: MCP server, REST tools, and WebSocket streaming
How to give an AI agent live and historical market data: an MCP server for Claude and Cursor, REST tool definitions, and WebSocket streaming for monitors.
Forex OHLCV data: how FX candles are built
Forex OHLCV data explained: how FX candles are built from aggregated quotes, why daily bars depend on the day boundary you pick, and how to pull them by API.
Live bid and ask price API: build a correct EURUSD and BTCUSD quote client
How to read live bid and ask prices for EURUSD and BTCUSD over REST and WebSocket: string-typed fields, epoch milliseconds, ping keepalive, and rate limits.
yfinance rate limited: migrating Python price pulls to a keyed market data API
yfinance rate limited or throwing Too Many Requests? A call-for-call map to move daily history, intraday bars, and latest-price pulls to a keyed API in Python.
Bid ask spread: how to read a quote and flag a wide or stale one in code
How to read bid and ask from a quote snapshot, compute the bid ask spread in basis points, and flag wide or stale quotes in Python before users see them.
Forex Market Data API: A Practical Guide for Developers
Pull live FX quotes and historical OHLCV bars over REST, and stream live forex ticks over WebSocket. A practical Forex API guide for developers.
Currency Conversion API vs Forex Market Data API: Which One You Need
A currency conversion API returns one mid rate per minute. A forex market data API gives tick bid/ask and OHLCV bars. Here is how to pick before you build.
How to Get Gold and Oil Spot Prices via API
Gold and oil spot prices from one API call. How SiftingIO symbols commodities (XAUUSD, WTIUSD), how to read a last trade or quote, and how the published price is aggregated across venues.
REST vs WebSocket for Real-Time Market Data: When to Use Each
REST or WebSocket for live market data? A plain guide to how each works, when to pull on demand versus stream, why fast polling scales badly, and how to use both together.
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.
Real-time FX and crypto quotes: REST snapshots and WebSocket streams
How to read real-time FX and crypto quotes from SiftingIO: REST bid/ask snapshots for EURUSD and BTCUSD, WebSocket tick streams, and the pitfalls in between.