OANDA vs Twelve Data
Head-to-head market data API comparison. Updated 2026-05-24.
Overall winner: Twelve Data — wins 2 of 7 comparison axes.
Side-by-Side Comparison
| Feature | OANDA | Twelve Data |
|---|---|---|
| API Quality | 4/5 | 4/5 |
| Doc Quality | 4/5 | 4/5 |
| Data Latency | tick | second |
| SDK Languages | 3 languages | 5 languages ✓ |
| Free Tier | Yes | Yes |
| Affiliate Program | Yes | Yes |
| Asset Coverage Breadth | 4 asset classes | 6 asset classes ✓ |
| Asset Coverage | Forex, CFDs, Commodities, Indices | US Equities, Global Equities, Forex, Crypto, ETFs, Indices |
| Historical Depth | 2001–present (FX tick and candle) | 30+ years (daily); intraday varies by plan |
| Starting Price | $0 | $0/mo |
| Rate Limits | 120 req/sec on REST; no stated limit on streaming | Credit-based; each endpoint consumes different credit amount |
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
Twelve Data: Best For
- Global coverage needs
- Technical indicator API
- Fintech apps
- Forex + crypto combo
Not Ideal For
- Tick data / HFT
- Deep US options data
- Large bulk downloads
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