TradingDataCompare

Alpha Vantage vs IEX Cloud (Discontinued)

Head-to-head comparison of two trading data providers. Updated 2026-05-23.

Overall winner: Alpha Vantage — wins 1 of 6 comparison axes.

Side-by-Side Comparison

Feature Alpha Vantage IEX Cloud (Discontinued)
API Quality 3/5 3/5
Doc Quality 3/5 3/5
Free Tier Yes ✓ No
Affiliate Program No No
Data Latency minute second
SDK Languages 5 languages 5 languages
Asset Coverage US Equities, Global Equities, Forex, Crypto, Commodities US Equities, US Options, Crypto, Forex, Commodities
Historical Depth 20+ years (daily); intraday 1-2 months on free Service discontinued
Starting Price $0/mo N/A
Rate Limits Free: 25/day; paid from 75/min Service discontinued

Alpha Vantage: Best For

  • Beginners
  • Homework / hobby projects
  • Technical indicator data
  • Fundamentals screening

Not Ideal For

  • Production trading systems
  • Real-time needs on free tier
  • Tick data
Full Alpha Vantage review →

IEX Cloud (Discontinued): Best For

  • Historical reference only

Not Ideal For

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

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