# Kalshi WebSocket Streaming API

**Canonical:** https://apis.io/apis/kalshi/websocket/  
**Provider:** Kalshi — https://apis.io/providers/kalshi/  
**Base URL:** wss://api.elections.kalshi.com/trade-api/ws/v2  
**Documentation:** https://docs.kalshi.com/api-reference

Kalshi WebSocket Streaming API is one of 21 APIs that [Kalshi](https://apis.io/providers/kalshi/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include WebSocket, Streaming, and Market Data. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Real-time streaming feed for market data, order book updates, fills, and portfolio events on Kalshi. Documented as an AsyncAPI spec alongside the OpenAPI REST surface.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.kalshi.com/api-reference
- **AsyncAPI** — https://docs.kalshi.com/asyncapi.yaml
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/kalshi/refs/heads/main/asyncapi/kalshi-asyncapi.yml

## Other Kalshi APIs (12)

- [Kalshi Trade API (Demo)](https://apis.io/apis/kalshi/trade-api-demo/)
- [Kalshi AsyncAPI Specification](https://apis.io/apis/kalshi/asyncapi/)
- [Kalshi Python Starter Kit](https://apis.io/apis/kalshi/python-starter/)
- [Kalshi account API](https://apis.io/apis/kalshi/kalshi-account-api/)
- [Kalshi api-keys API](https://apis.io/apis/kalshi/kalshi-api-keys-api/)
- [Kalshi communications API](https://apis.io/apis/kalshi/kalshi-communications-api/)
- [Kalshi events API](https://apis.io/apis/kalshi/kalshi-events-api/)
- [Kalshi exchange API](https://apis.io/apis/kalshi/kalshi-exchange-api/)
- [Kalshi fcm API](https://apis.io/apis/kalshi/kalshi-fcm-api/)
- [Kalshi historical API](https://apis.io/apis/kalshi/kalshi-historical-api/)
- [Kalshi incentive-programs API](https://apis.io/apis/kalshi/kalshi-incentive-programs-api/)
- [Kalshi live-data API](https://apis.io/apis/kalshi/kalshi-live-data-api/)

## Tags

WebSocket, Streaming, Market Data

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