About Sharpbook

Market titles are short. The rules that decide the payout are long. People bet on the title and get paid on the rules. Twelve tools track whales, prices, arbitrage and news. None of them read the rules. This one does.

What it does

For every open political, world, economic and culture market on Kalshi and Polymarket, Smallprint reads the settlement rules once and turns them into three short lists: what has to happen for Yes, what looks like a win but isn't, and what to watch out for. The original text is always next to it.

What it never does

It does not predict outcomes, recommend trades, execute trades, touch wallets or accounts, or cover sports. The moment a tool says what will happen, it becomes a tipster and gets judged on whether you made money. We stay on what the words say.

How the reading works

A language model fills a fixed schema from the rules text: trigger, source of truth, deadline, exclusions, special clauses. If it can't find something it returns nothing rather than guessing. Plain code then decides what gets flagged and in what words. The model never writes the verdict, so the same rules always produce the same card. When the text is too vague to summarise, the card says so.

Coming next

Contract diff for markets that exist on both venues, a watchlist, and an email the moment the rules of a market you hold change.

Sharpbook is independent and not affiliated with Kalshi or Polymarket. Contact: hello@sharpbook.io