MetaAPI vs Polygon.io (now Massive)
Head-to-head comparison of two trading data providers. Updated 2026-05-24.
Overall winner: Polygon.io (now Massive) — wins 1 of 6 comparison axes.
Side-by-Side Comparison
| Feature | MetaAPI | Polygon.io (now Massive) |
|---|---|---|
| API Quality | 4/5 | 4/5 |
| Doc Quality | 4/5 | 4/5 |
| Free Tier | Yes | Yes |
| Affiliate Program | No | No |
| Data Latency | second | tick |
| SDK Languages | 3 languages | 5 languages ✓ |
| Asset Coverage | Forex, CFDs, Indices, Commodities | US Equities, US Options, Forex, Crypto, Global Indices |
| Historical Depth | Broker-dependent; typically 1-5 years via MT4/MT5 | 2003–present (equities) |
| Starting Price | $0/mo | $0/mo |
| Rate Limits | Varies by plan; 10k calls/mo free | Free: 5/min; Starter: 15/min; Developer+: unlimited |
MetaAPI: Best For
- MT4/MT5 EA automation
- Forex broker API access
- Copy trading systems
- Multi-account management
Not Ideal For
- US equities data
- Crypto exchange data
- Tick data archive
Polygon.io (now Massive): Best For
- Algo traders
- Fintech app developers
- Options traders
- Crypto quants
Not Ideal For
- Tick-level HFT (DBZ format not available)
- Institutional order book depth
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