Alpaca VS Nasdaq Data Link
Head-to-head market data API comparison.
UPDATED 2026-05-27 · 7 axes scored
WINNER · NASDAQ DATA LINK · 2/7 AXES
Quick Decision
▶ PICK ALPACA IF DATA-API
- Retail algo traders
- Python quants
- Paper trading bots
- US equity automation
▶ PICK NASDAQ DATA LINK IF DATA-API
- Quant researchers
- Alternative data buyers
- Macro/fundamental analysts
- Academic researchers
▼ Skip both if
- Deep historical tick data
Side-by-Side Matrix
| METRIC | ALPACA | NASDAQ DATA LINK |
|---|---|---|
| API Quality | 4/5 | 3/5 |
| Doc Quality | 4/5 | 4/5 |
| Data Latency | second | daily |
| SDK Languages | 4 languages | 5 languages |
| Free Tier | Yes | Yes |
| Affiliate Program | No | No |
| Asset Coverage Breadth | 3 classes | 6 classes |
| Asset Coverage | US Equities · US Options · Crypto | US Equities · Global Equities · Futures · Forex · Commodities · Alternative Data |
| Historical Depth | 7+ years (minute bars); limited tick | 50+ years on select datasets; varies widely |
| Starting Price | $0/mo | $0/mo |
| Rate Limits | Free: 200 req/min; Algo Trader Plus: up to 10,000 req/min | Anonymous: 20 calls/10min, 50/day; Free w/ API key: 300/10s, 2,000/10min, 50,000/day; Premium: higher limits per dataset |
Asset Class Coverage
Where the two providers overlap and where each has unique coverage.
| ASSET CLASS | ALPACA | NASDAQ DATA LINK |
|---|---|---|
| Alternative Data | — | ✓ Covered |
| Commodities | — | ✓ Covered |
| Crypto | ✓ Covered | — |
| Forex | — | ✓ Covered |
| Futures | — | ✓ Covered |
| Global Equities | — | ✓ Covered |
| US Equities | ✓ Covered | ✓ Covered |
| US Options | ✓ Covered | — |
| TOTAL CLASSES | 3 | 6 |
Only Alpaca
US Options · Crypto
Only Nasdaq Data Link
Global Equities · Futures · Forex · Commodities · Alternative Data
Shared · 1
US Equities
Pricing Tier Map
Full tier ladder side-by-side · names and prices as published by each provider · 2 vs 2 tiers.
ALPACA · 2 TIERS FREE TIER
01
Free $0/mo
Real-time IEX data + paper trading
02
Algo Trader Plus $99/mo
SIP real-time data + unlimited API calls
▲ Free Tier · Free tier: real-time IEX feed, unlimited historical (15-min delay on SIP)
NASDAQ DATA LINK · 2 TIERS FREE TIER
01
Free $0/mo
Open datasets, limited premium access
02
Premium Custom
Institutional datasets, alternative data, bulk downloads
▲ Free Tier · Free: select open datasets; core financial data free with registration
Technical Stack Fit
SDK languages and data formats determine integration cost for your existing codebase.
| DIMENSION | ALPACA | NASDAQ DATA LINK |
|---|---|---|
| API Types | REST · WebSocket · SDK | REST · SDK |
| SDK Languages | Python · JavaScript · Go · C# | Python · R · JavaScript · Ruby · Excel |
| Data Formats | JSON | JSON · CSV · Excel |
| Rate Limits | Free: 200 req/min; Algo Trader Plus: up to 10,000 req/min | Anonymous: 20 calls/10min, 50/day; Free w/ API key: 300/10s, 2,000/10min, 50,000/day; Premium: higher limits per dataset |
| Latency Class | second | daily |
Fit Profile
ALPACA · PROFILE DATA-API
Best For
- Retail algo traders
- Python quants
- Paper trading bots
- US equity automation
Not Ideal For
- International markets
- Deep historical tick data
- Options analytics
Full Alpaca Review
NASDAQ DATA LINK · PROFILE DATA-API
Best For
- Quant researchers
- Alternative data buyers
- Macro/fundamental analysts
- Academic researchers
Not Ideal For
- Real-time trading systems
- Tick data / HFT
- Crypto
- Intraday strategies
Full Nasdaq Data Link Review
Adjacent Comparisons
Related matchups — same category first, then cross-category for context.
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