pmxt

pmxt is a unified interface layer for prediction markets, abstracting quotes and order entry across more than ten venues, including Polymarket, Kalshi, Limitless and Smarkets, for market makers, arbitrage desks and data teams. It ships Python and TypeScript SDKs, a Router module for cross-venue market matching and spread scanning, a history layer holding more than three years of OHLCV and Parquet order-book snapshots, and an MCP server for agent workflows; funds stay in the user's own wallet and in on-chain contracts, with signing done locally.

The tool addresses the long-standing fragmentation of prediction markets: the same event is priced differently across venues, and interfaces, settlement currencies and order types all differ, so a cross-venue strategy needs a separate adapter for each platform. pmxt collapses those differences into a common market identifier and order model, letting spread scanning and batch quoting run through one code path; columnar order-book snapshots make backtests readable without replaying an API. It positions itself as infrastructure rather than as a venue.