# TD Ameritrade Streaming Market Data API

**Canonical:** https://apis.io/apis/td-ameritrade/td-ameritrade-streaming-market-data-api/  
**Provider:** TD Ameritrade — https://apis.io/providers/td-ameritrade/  
**Base URL:** wss://streamer-ws.tdameritrade.com/ws  
**Documentation:** https://developer.tdameritrade.com/content/streaming-data

TD Ameritrade Streaming Market Data API is one of 15 APIs that [TD Ameritrade](https://apis.io/providers/td-ameritrade/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Streaming, WebSocket, Real-Time, Level 2, and Market Data. The published artifact set on APIs.io includes API documentation and authentication docs.

Provides a WebSocket-based streaming API that delivers up-to-the-second market data including real-time Level 1 and Level 2 quotes, time and sales data for equities, options, and futures, as well as order book depth data. Streaming sessions are initiated using credentials obtained from the User Principals endpoint.

## Machine-readable artifacts (2)

- **Documentation** — https://developer.tdameritrade.com/content/streaming-data
- **Authentication** — https://developer.tdameritrade.com/authentication/apis

## Other TD Ameritrade APIs (12)

- [TD Ameritrade Market Data API](https://apis.io/apis/td-ameritrade/td-ameritrade-market-data-api/)
- [TD Ameritrade Instruments API](https://apis.io/apis/td-ameritrade/td-ameritrade-instruments-api/)
- [TD Ameritrade Authentication API](https://apis.io/apis/td-ameritrade/td-ameritrade-authentication-api/)
- [TD Ameritrade Accounts and Trading API](https://apis.io/apis/td-ameritrade/td-ameritrade-accounts-and-trading-api/)
- [TD Ameritrade Authentication API](https://apis.io/apis/td-ameritrade/td-ameritrade-authentication-api/)
- [TD Ameritrade Instruments API](https://apis.io/apis/td-ameritrade/td-ameritrade-instruments-api/)
- [TD Ameritrade Market Hours API](https://apis.io/apis/td-ameritrade/td-ameritrade-market-hours-api/)
- [TD Ameritrade Movers API](https://apis.io/apis/td-ameritrade/td-ameritrade-movers-api/)
- [TD Ameritrade Option Chains API](https://apis.io/apis/td-ameritrade/td-ameritrade-option-chains-api/)
- [TD Ameritrade Price History API](https://apis.io/apis/td-ameritrade/td-ameritrade-price-history-api/)
- [TD Ameritrade Quotes API](https://apis.io/apis/td-ameritrade/td-ameritrade-quotes-api/)
- [TD Ameritrade Transaction History API](https://apis.io/apis/td-ameritrade/td-ameritrade-transaction-history-api/)

## Tags

Streaming, WebSocket, Real-Time, Level 2, Market Data

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