# Polygon.io Stocks API

**Canonical:** https://apis.io/apis/massive-com/polygonio-stocks-api/  
**Provider:** Massive (formerly Polygon.io) — https://apis.io/providers/massive-com/  
**Base URL:** https://api.polygon.io  
**Documentation:** https://polygon.io/docs/stocks

Polygon.io Stocks API is one of 70 APIs that [Massive (formerly Polygon.io)](https://apis.io/providers/massive-com/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include Stocks, Market Data, and Real-Time. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Real-time and historical US equity market data including aggregates (minute/hour/day bars), trades, NBBO quotes, snapshots, ticker reference, splits, dividends, and financials. Available via REST and WebSocket.

## Machine-readable artifacts (2)

- **Documentation** — https://polygon.io/docs/stocks
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/massive-com/refs/heads/main/asyncapi/polygon-io-asyncapi.yml

## Other Massive (formerly Polygon.io) APIs (12)

- [Polygon WebSocket API](https://apis.io/apis/massive-com/websocket-api/)
- [Polygon.io Options API](https://apis.io/apis/massive-com/polygonio-options-api/)
- [Polygon.io Indices API](https://apis.io/apis/massive-com/polygonio-indices-api/)
- [Polygon.io Forex API](https://apis.io/apis/massive-com/polygonio-forex-api/)
- [Polygon.io Crypto API](https://apis.io/apis/massive-com/polygonio-crypto-api/)
- [Polygon.io Futures API](https://apis.io/apis/massive-com/polygonio-futures-api/)
- [Massive (formerly Polygon.io) Benzinga API](https://apis.io/apis/massive-com/massive-com-benzinga-api/)
- [Massive (formerly Polygon.io) Crypto:aggregates API](https://apis.io/apis/massive-com/massive-com-crypto-aggregates-api/)
- [Massive (formerly Polygon.io) Crypto:last:trade API](https://apis.io/apis/massive-com/massive-com-crypto-last-trade-api/)
- [Massive (formerly Polygon.io) Crypto:open Close API](https://apis.io/apis/massive-com/massive-com-crypto-open-close-api/)
- [Massive (formerly Polygon.io) Crypto:snapshot API](https://apis.io/apis/massive-com/massive-com-crypto-snapshot-api/)
- [Massive (formerly Polygon.io) Crypto:trades API](https://apis.io/apis/massive-com/massive-com-crypto-trades-api/)

## Tags

Stocks, Market Data, Real-Time

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/massive-com/polygonio-stocks-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/massive-com/.