Tradier
Brokerage API with real-time market data, options chains, and commission-free trading
Quick Facts
| Asset coverage | US Equities, US Options, ETFs |
| Historical depth | 10+ years (daily OHLCV); 1-min intraday on paid |
| Data latency | second |
| API types | REST, WebSocket |
| SDKs | Python, JavaScript, Ruby |
| Rate limits | Generous; no published hard limits on Developer plan |
| Data formats | JSON, XML |
| Affiliate program | ✓ Yes |
| Last updated | 2026-05-24 |
Ratings
API quality ★★★★☆ 4/5
Doc quality ★★★★☆ 4/5
Community medium
Best for
- US options traders
- Retail algo traders
- Commission-free trading bots
- Options analytics apps
Not ideal for
- International markets
- Crypto
- Futures
- Non-US exchanges
Pricing Plans
$0/mo
Sandbox
Paper trading, full API access, delayed data
$10/mo
Developer
Real-time data, live trading API, no per-trade commission
Free tier: Free sandbox: full API access on paper trading account