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2025-02 — Initial release

Platforms
  • Polymarket (Gamma API) — markets, events, tags, series, search, sports
  • Polymarket (CLOB API) — order book, prices, spreads, profiles, trades, bridge
  • Kalshi — markets, events, orders (read-only), portfolio, RFQ, historical data, multivariate
  • Gemini — prediction market categories, events, market data
  • Coinbase — spot exchange market data
  • Forecastex — IBKR event contract data (read-only)
WebSockets
  • Polymarket market, user, and sports channels
  • Kalshi (proxy handles RSA-PSS auth automatically)
  • Coinbase (ticker, level2, heartbeat)
  • Gemini
Infrastructure
  • Per-key rate limiting (RATE_LIMIT_PER_MIN)
  • CORS configuration
  • Kalshi RSA-PSS request signing built into the proxy—clients don’t handle Kalshi auth directly