tinli

A Python-based trading terminal specifically designed for cross-venue arbitrage between Kalshi and Polymarket prediction markets. The key innovation is its fee-aware lock pricing model — it calculates the true cost of locking positions across both venues, accounting for maker/taker fees, withdrawal costs, and settlement timelines. The risk engine provides real-time exposure tracking and position sizing recommendations based on Kelly criterion or custom risk parameters. At 440KB, the codebase is focused and well-structured, suggesting thoughtful architecture rather than rapid prototyping. The arbitrage detection algorithm scans both venues' order books simultaneously, identifying price discrepancies that exceed the total cost of execution (including estimated gas fees on Polygon for Polymarket trades). Suitable for sophisticated traders who understand cross-venue basis trading and want automated detection tools. The terminal interface provides order book visualization, trade execution, and position monitoring. No malware indicators. This fills a genuine gap in the prediction market tooling ecosystem — most bots focus on single-venue strategies. The developer appears to have a quantitative finance background based on implementation quality.