Paper trading on Kalshi before you go live

Kalshi itself has no practice mode. Paper trading happens inside the tool you use, and it is only as honest as that tool's fill model. Here is what to expect.

Why paper first

Nobody should go live on a strategy they have watched for five minutes. Paper mode runs the same signals with simulated fills, so you can see how often it trades, at what prices, and how it behaves in the frantic last minutes, without a dollar at stake.

What honest paper trading looks like

The trap with paper trading is that a simulator can "fill" you at prices you would never actually get. A good paper mode should:

• Use the real order book, not the mid price, so a simulated buy pays what a real buy would pay.
• Miss fills when the market runs away, the same way a real limit order would, and tell you it missed.
• Size trades the same way live does, so "$5 a signal" means $5.
• Charge the fee.

DirectionalBot's paper mode does all four. It was rebuilt in September specifically because an earlier version filled paper trades too generously and made paper look better than live.

What paper still cannot tell you

How long to run it

A day is enough to see the rhythm: how many trades, which coins, which hours. A week is enough to see a bad stretch, and every strategy has bad stretches. Go live small, with a size you would be fine losing, and keep the risk caps on. Then scale.

Going live

Switching from paper to live in DirectionalBot is one tap plus pasting a Kalshi API key (here is how to make one). Your settings carry over. Daily loss cap, exposure cap and balance floor stay on unless you turn them off.