PC

Open-source market toolkit by Lurk

PolyCore (v0.4)Open-source tooling for binary markets.
CalculatorWatchlistMonitorRulesGitHub

Overview

Open-source market tools.

Price contracts, track watchlists, monitor markets, and run rules from the browser or CLI.

Open calculatorOpen watchlistOpen monitorOpen rules
CalculatorEdge, EV, Kelly, target entry, and reverse pricing.
WatchlistSaved local watchlists, import/export, filters, and calculator handoff.
MonitorLive board for the markets you are tracking right now.
RulesSaved conditions for entry, spread, status, countdown, and EV.

Analyze

Calculator

Open

YES / NO pricing with target entry, reverse pricing, fee presets, slippage, and sizing.

Track

Watchlist

Open

Saved local watchlists, live Kalshi data, filter/sort, and one-click launch into the calculator.

Monitor

Monitor

Open

A live board for tracked markets with selection detail, pulse metrics, and event logs.

Automate

Rules

Open

Saved alert rules that watch price, spread, status, time-to-close, and EV conditions.