# Massive

Provides developer-focused market-data products through REST APIs, WebSocket streams and historical files. The business changed its brand from Polygon.io to Massive.

Canonical profile: https://fxmacrodata.com/fx-providers/polygon-io/
Publisher: FXMacroData
Entity ID: `org_polygon_io`
Category: Data & analytical products
Business type: financial-information provider

## Services

- Market data
- API access

## Sources

- https://massive.com/blog/polygon-is-now-massive
  Source checked: 2026-10-29
  Source: massive.com.

## Citation

Massive — FXMacroData organisation directory. https://fxmacrodata.com/fx-providers/polygon-io/