# Databento Live Streaming API

**Canonical:** https://apis.io/apis/databento/databento-live-streaming-api/  
**Provider:** Databento — https://apis.io/providers/databento/  
**Base URL:** tcp://GLBX.MDP3.lsg.databento.com  
**Documentation:** https://databento.com/docs/api-reference-live

Databento Live Streaming API is one of 7 APIs that [Databento](https://apis.io/providers/databento/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Live Market Data, Streaming, Market Data, Trading, and Low Latency. The published artifact set on APIs.io includes API documentation and authentication docs.

Low-latency live market data delivered over a raw TCP binary streaming protocol using Databento Binary Encoding (DBN) - the same normalized schemas as the historical API. Sessions authenticate with a CRAM challenge-response handshake using your API key, then subscribe to symbols and schemas per dataset gateway. This is a binary TCP protocol, not a documented public WebSocket; it is consumed via the official Python, C++, and Rust clients and has no OpenAPI description.

## Machine-readable artifacts (3)

- **Documentation** — https://databento.com/docs/api-reference-live
- **Authentication** — https://databento.com/docs/api-reference-live/basics/authentication
- **Documentation** — https://databento.com/docs/standards-and-conventions/databento-binary-encoding

## Other Databento APIs (6)

- [Databento Historical Timeseries API](https://apis.io/apis/databento/databento-historical-timeseries-api/)
- [Databento Metadata API](https://apis.io/apis/databento/databento-metadata-api/)
- [Databento Symbology API](https://apis.io/apis/databento/databento-symbology-api/)
- [Databento Batch API](https://apis.io/apis/databento/databento-batch-api/)
- [Databento Reference API](https://apis.io/apis/databento/databento-reference-api/)
- [Databento OpenAPI specification](https://apis.io/apis/databento/databento-platform-openapi-official/)

## Tags

Live Market Data, Streaming, Market Data, Trading, Low Latency

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