# tastytrade DXLink Market Data Streaming API

**Canonical:** https://apis.io/apis/tastytrade/tastytrade-dxlink-market-data-streaming-api/  
**Provider:** tastytrade — https://apis.io/providers/tastytrade/  
**Base URL:** wss://tasty-openapi-ws.dxfeed.com  
**Documentation:** https://developer.tastytrade.com/streaming-market-data/

tastytrade DXLink Market Data Streaming API is one of 29 APIs that [tastytrade](https://apis.io/providers/tastytrade/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include WebSocket, Streaming, Market Data, Quotes, and Options Greeks. The published artifact set on APIs.io includes API documentation and a getting-started guide.

Real-time market data streaming via DXLink, a WebSocket-based protocol backed by dxFeed. Clients fetch a quote token from the tastytrade REST API and use it to authenticate with the DXLink WebSocket endpoint. Supports subscriptions to quotes, greeks (implied volatility, delta, gamma, theta, vega), candles, and other market events for equities, options, futures, and crypto instruments. Sandbox quotes are 15-minute delayed.

## Machine-readable artifacts (3)

- **Documentation** — https://developer.tastytrade.com/streaming-market-data/
- **GettingStarted** — https://developer.tastytrade.com/streaming-market-data/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/tastytrade/refs/heads/main/apis.yml

## Other tastytrade APIs (12)

- [tastytrade Account Streamer API](https://apis.io/apis/tastytrade/tastytrade-account-streamer-api/)
- [tastytrade accounts API](https://apis.io/apis/tastytrade/tastytrade-accounts-api/)
- [tastytrade api-quote-tokens API](https://apis.io/apis/tastytrade/tastytrade-api-quote-tokens-api/)
- [tastytrade Available Dates API](https://apis.io/apis/tastytrade/tastytrade-available-dates-api/)
- [tastytrade Backtests API](https://apis.io/apis/tastytrade/tastytrade-backtests-api/)
- [tastytrade balance-snapshots API](https://apis.io/apis/tastytrade/tastytrade-balance-snapshots-api/)
- [tastytrade complex-orders API](https://apis.io/apis/tastytrade/tastytrade-complex-orders-api/)
- [tastytrade customers API](https://apis.io/apis/tastytrade/tastytrade-customers-api/)
- [tastytrade futures-option-chains API](https://apis.io/apis/tastytrade/tastytrade-futures-option-chains-api/)
- [tastytrade instruments API](https://apis.io/apis/tastytrade/tastytrade-instruments-api/)
- [tastytrade margin-requirements API](https://apis.io/apis/tastytrade/tastytrade-margin-requirements-api/)
- [tastytrade margin-requirements-public-configuration API](https://apis.io/apis/tastytrade/tastytrade-margin-requirements-public-configuration-api/)

## Tags

WebSocket, Streaming, Market Data, Quotes, Options Greeks, Real-Time, DXLink, dxFeed

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