Yes or no, on the game, the Fed, the election.
Trade event contracts on Kalshi, a CFTC‑regulated exchange, from the same balance you use for everything else on OpenSea. Prices are probabilities; every contract pays $1 if you're right. Fees are shown live before you confirm.
Markets
Sports first. Economics, politics, climate, culture and crypto alongside.
How the price works.
A contract's price is the market's probability. Yes at 62¢ means a 62% chance; if the Lakers win, each contract pays $1.00. Sell before settlement if the price moves your way.
Kalshi's fee is $0.07 × price × (1 − price) per contract — highest on a coin flip (1.75¢ at 50¢), almost nothing on a near‑certain outcome. The ticket recomputes it as the price moves.
Getting started takes one verification.
Progressive: nothing is asked until you trade an event contract, then only what the regulated account requires.
Your state, first
Checked before anything else renders. If event contracts aren't offered where you are, you'll see why — and the rest of OpenSea still works.
Name, DOB, address, SSN
Apex opens a regulated account in your name. Usually minutes; we show realistic timing while it's pending.
Bank or balance
Link a bank (ACH) or move USDC from your OpenSea balance where permitted.
Read, then trade
Apex FCM terms, Kalshi exchange rules and the risk disclosure, in full, before the first order.
Questions
Who is my counterparty?
Other traders on Kalshi. Apex, a registered futures commission merchant, opens and holds your account; OpenSea is the introducing interface.
What does OpenSea earn?
A share of Kalshi's fee on the orders it introduces — shown on the ticket as 'included'. Nothing is added to the fee you'd pay on Kalshi directly.
Why does the fee change?
Because it's proportional to price × (1 − price). A 50¢ contract carries the highest fee (1.75¢); a 5¢ or 95¢ contract carries almost none. The ticket recomputes it live.
Is this live?
No — a working concept demo. Markets, prices and the verification flow are simulated in your browser; nothing is sent to Kalshi or Apex.