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Kalshi

Kalshi live-data API

Live data endpoints

Documentation Provider Profile APIs.io OpenAPI GitHub

Kalshi live-data API is one of 21 APIs that Kalshi publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Live Data. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 4 operations across 4 paths, and defines 5 schemas. It is described by OpenAPI 3.2.0, at version 3.19.0.

Requests are made against 4 base URLs: https://external-api.kalshi.com/trade-api/v2, https://api.elections.kalshi.com/trade-api/v2, https://external-api.demo.kalshi.co/trade-api/v2, https://demo-api.kalshi.co/trade-api/v2.

4 operations 4 paths 5 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
3.19.0
Base URL
https://api.elections.kalshi.com/trade-api/v2
Authentication
API Key, API Key, API Key
Resource Areas
1

Authentication & Security 3

Kalshi live-data API declares 3 security schemes for authenticating requests. An API key is passed in the header as KALSHI-ACCESS-KEY (kalshiAccessKey). An API key is passed in the header as KALSHI-ACCESS-SIGNATURE (kalshiAccessSignature). An API key is passed in the header as KALSHI-ACCESS-TIMESTAMP (kalshiAccessTimestamp).

  • kalshiAccessKey — Your API key ID
  • kalshiAccessSignature — RSA-PSS signature of the request
  • kalshiAccessTimestamp — Request timestamp in milliseconds

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

live-data 4

Live data endpoints

GET
/live_data/milestone/{milestone_id}
Get Live Data
GetLiveDataByMilestone 2 params → 200404500
GET
/live_data/{type}/milestone/{milestone_id}
Get Live Data (with type)
GetLiveData 3 params → 200404500
GET
/live_data/batch
Get Multiple Live Data
GetLiveDatas 2 params → 200500
GET
/live_data/milestone/{milestone_id}/game_stats
Get Game Stats
GetGameStats 1 param → 200404500

Schemas 5

The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are LiveData (3 properties), GetGameStatsResponse (1 property), PlayByPlay (1 property), GetLiveDatasResponse (1 property). Each schema is shown below with its type and property counts.

LiveData
object
3 properties 3 required
GetLiveDataResponse
object
1 property 1 required
GetLiveDatasResponse
object
1 property 1 required
PlayByPlay
object
Play-by-play data organized by period.
1 property
GetGameStatsResponse
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

kalshi-live-data-api-openapi.yml Raw ↑

Other APIs Kalshi publishes across the network.

Kalshi Trade API (Demo)
AE Profile APIs.io
Kalshi WebSocket Streaming API
AE Profile APIs.io
Kalshi AsyncAPI Specification
AE Profile APIs.io
Kalshi Python Starter Kit
AE Profile APIs.io
Kalshi account API
AE Profile APIs.io
Kalshi api-keys API
AE Profile APIs.io
Kalshi communications API
AE Profile APIs.io
Kalshi events API
AE Profile APIs.io
Kalshi exchange API
AE Profile APIs.io
Kalshi fcm API
AE Profile APIs.io
Kalshi historical API
AE Profile APIs.io
Kalshi incentive-programs API
AE Profile APIs.io
#Live Data
← Back to K APIs
API Details
ID
kalshi:kalshi-live-data-api
Base URL
https://api.elections.kalshi.com/trade-api/v2
Docs
https://docs.kalshi.com/api-reference
Provider
Kalshi
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