Welcome to Kalshi’s API Documentation This documentation covers the Kalshi Exchange API for real-time market data and trade execution By continuing to use or access Kalshi’s API, you are agreeing …

Using a API Key Each request to Kalshi trading api will need to be signed with the private key generated above.

Available SDKs Kalshi provides official SDKs to make integration easier. Each SDK provides full access to the Kalshi API with language-specific conventions and best practices.

Through Kalshi's API, you’ll gain access to information about your own orders, trades, portfolio, and portfolio history, as well as all markets’ order books and a limited number of stats about each of …

Kalshi is a regulated exchange & prediction market where you can trade on the outcome of real-world events. Buy and sell Event Contracts.

The Kalshi API uses cursor-based pagination to handle large datasets efficiently. To learn more about navigating through paginated responses, see our Understanding Pagination guide.

Set up and test with Kalshi's demo environment

Get started with the Kalshi Python SDK The old kalshi-python package is deprecated. Please use kalshi_python_sync or kalshi_python_async instead.

Overview As trading activity on Kalshi grows, so does the volume of settled markets, completed trades, and fulfilled orders. To keep the live API fast and responsive, Kalshi partitions exchange data into …

New Feature Upcoming Kalshi now partitions exchange data into live and historical tiers. Historical data must be accessed via the new historical API endpoints. The GET /historical/cutoff endpoint returns …