TradingDataCompare

IEX Cloud (Discontinued) vs OANDA

Head-to-head market data API comparison. Updated 2026-05-24.

Overall winner: OANDA — wins 3 of 7 comparison axes.

Side-by-Side Comparison

Feature IEX Cloud (Discontinued) OANDA
API Quality 3/5 4/5 ✓
Doc Quality 3/5 4/5 ✓
Data Latency second tick
SDK Languages 5 languages ✓ 3 languages
Free Tier No Yes ✓
Affiliate Program No Yes
Asset Coverage Breadth 5 asset classes ✓ 4 asset classes
Asset Coverage US Equities, US Options, Crypto, Forex, Commodities Forex, CFDs, Commodities, Indices
Historical Depth Service discontinued 2001–present (FX tick and candle)
Starting Price N/A $0
Rate Limits Service discontinued 120 req/sec on REST; no stated limit on streaming

IEX Cloud (Discontinued): Best For

  • Historical reference only

Not Ideal For

  • Any new project — service is shut down
Full IEX Cloud (Discontinued) review →

OANDA: Best For

  • Forex algo traders
  • FX backtesting (deep history)
  • CFD automation
  • EA developers

Not Ideal For

  • Equities data
  • Crypto beyond CFDs
  • Non-FX asset classes
Full OANDA review →

More Comparisons

IEX Cloud (Discontinued) vs Databento OANDA vs Databento IEX Cloud (Discontinued) vs Polygon.io (now Massive) OANDA vs Polygon.io (now Massive) IEX Cloud (Discontinued) vs Alpaca OANDA vs Alpaca IEX Cloud (Discontinued) vs Finnhub OANDA vs Finnhub IEX Cloud (Discontinued) vs Alpha Vantage OANDA vs Alpha Vantage IEX Cloud (Discontinued) vs Twelve Data OANDA vs Twelve Data