TRADINGDATACOMPARE
LIVE · 2026-05-27

Alpaca VS Marketstack

Head-to-head market data API comparison.
UPDATED 2026-05-27 · 7 axes scored

WINNER · ALPACA · 2/7 AXES

Quick Decision

▶ PICK ALPACA IF DATA-API
  • Retail algo traders
  • Python quants
  • Paper trading bots
  • US equity automation
▶ PICK MARKETSTACK IF DATA-API
  • Web app developers
  • Simple stock charts
  • Basic portfolio apps
  • Budget-conscious indie devs

Side-by-Side Matrix

METRIC ALPACA MARKETSTACK
API Quality 4/5 3/5
Doc Quality 4/5 4/5
Data Latency second minute
SDK Languages 4 languages 1 languages
Free Tier Yes Yes
Affiliate Program No Yes
Asset Coverage Breadth 3 classes 6 classes
Asset Coverage
US Equities · US Options · Crypto
US Equities · Global Equities · ETFs · Global Indices · Bonds · Commodities
Historical Depth 7+ years (minute bars); limited tick 30+ years (annual EOD); intraday on Professional+
Starting Price $0/mo $0/mo
Rate Limits Free: 200 req/min; Algo Trader Plus: up to 10,000 req/min Free: 100/mo; Basic: 10k/mo; Pro: 100k/mo; Business: 500k/mo

Asset Class Coverage

Where the two providers overlap and where each has unique coverage.

ASSET CLASS ALPACA MARKETSTACK
Bonds ✓ Covered
Commodities ✓ Covered
Crypto ✓ Covered
ETFs ✓ Covered
Global Equities ✓ Covered
Global Indices ✓ Covered
US Equities ✓ Covered ✓ Covered
US Options ✓ Covered
TOTAL CLASSES 3 6
Only Alpaca
US Options · Crypto
Only Marketstack
Global Equities · ETFs · Global Indices · Bonds · Commodities
Shared · 1
US Equities

Pricing Tier Map

Full tier ladder side-by-side · names and prices as published by each provider · 2 vs 5 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)
MARKETSTACK · 5 TIERS FREE TIER
01
Free $0/mo
100 req/mo, EOD only, 1-year history
02
Basic $9.99/mo
10,000 req/mo, intraday access, all asset types
03
Professional $49.99/mo
100,000 req/mo, real-time updates (sub-15min), commodities
04
Business $149.99/mo
500,000 req/mo, priority support
05
Enterprise Custom
Higher limits + SLA
▲ Free Tier · 100 requests/mo, EOD only, 1-year history

Technical Stack Fit

SDK languages and data formats determine integration cost for your existing codebase.

DIMENSION ALPACA MARKETSTACK
API Types REST · WebSocket · SDK REST
SDK Languages Python · JavaScript · Go · C# REST-only (community Python wrappers exist)
Data Formats JSON JSON
Rate Limits Free: 200 req/min; Algo Trader Plus: up to 10,000 req/min Free: 100/mo; Basic: 10k/mo; Pro: 100k/mo; Business: 500k/mo
Latency Class second minute

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
MARKETSTACK · PROFILE DATA-API

Best For

  • Web app developers
  • Simple stock charts
  • Basic portfolio apps
  • Budget-conscious indie devs

Not Ideal For

  • Real-time HFT
  • Tick-level analysis
  • Options/futures traders
  • Native SDK lovers

Full Marketstack Review

Adjacent Comparisons

Related matchups — same category first, then cross-category for context.

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