Kalshi API
Official public REST data for Kalshi events, markets and order books.
DOCUMENTATION CHECKED · 2026-09-29
Who Kalshi API is for
A Kalshi-specific dashboard or research script that does not need a cross-venue vendor.
- Supported venues
- kalshi
- Interface
- api
- Pricing and access
- The documented public REST endpoints need no API key. Authenticated endpoints and trading have separate requirements and fees.
Limitations to consider
- WebSocket access requires authentication.
- Current and historical datasets have different endpoints; check retention and access requirements.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
Categories
Features
Public market and event lookupCursor paginationOrder-book data
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