kalshi-apilisted

# Kalshi API CFTC-regulated US event exchange. USD-denominated binary contracts settle at $1.00 (YES wins) or $0.00 (NO wins). REST + WebSocket, RSA-PSS authentication on every request. For contract semantics and settlement rules, see the `kalshi-weather-markets` and `kalshi-crypto-index-markets` skills. For strategy, sizing, and backtesting, see `prediction-market-strategy`. --- > **VERIFY BEFORE CODING.** > The Kalshi API has broken backward compatibility before: the host changed (old `trading-api.kalshi.com` → dead), and the order schema changed (integer cents → dollar strings). Always smoke-test signing and order bodies against a live response before shipping. > > Canonical sources: > - API reference: <https://docs.kalshi.com> (legacy mirror: <https://trading-api.readme.io>) > - Official Python starter: <https://github.com/Kalshi/kalshi-starter-code-python> --- ## Overview - **Base URL:** `https://api.elections.kalshi.com/trade-api/v2` - **Auth:** RSA-PSS on every request — there are no public/unauthenticated endpoints - **No demo parity:** the demo environment (`demo-api.kalshi.co`) has a near-empty book; use production even for read-only pulls - **Contracts:** $0.01–$0.99 per contract; pay price if YES wins, lose price if NO wins; max payout = $1.00 --- ## Quick Start ### 1. Credentials ``` KALSHI_KEY_ID=<your-key-uuid> KALSHI_PRIVATE_KEY_PATH=~/.kalshi/private.pem ``` Generate the key in the Kalshi dashboard. Store secrets in environment variables or a secr