Guide
Kalshi trading bots: how they work and what to expect
A Kalshi trading bot is software that watches Kalshi markets and places orders for you through the Kalshi API. Most are built for the 15-minute crypto markets, where a new market opens every quarter hour on Bitcoin, Ethereum, Solana and other coins. This guide covers how such a bot decides, the math it has to beat, and how to judge one before you trust it with money.
What a bot does in each market
Each 15-minute market asks one question: will the coin finish above a target price? A contract pays $1 if you are right and nothing if you are wrong, so its price in cents is the market's estimate of the chance. A bot reads the coin's price, the target, the time left and Kalshi's bid and ask, forms its own estimate of the odds, and buys only when a contract costs less than that estimate by enough to cover fees.
No bot knows where a coin is headed. The useful ones estimate odds and wait for a price that is out of line with them, which is why they sit out most markets.
The math every bot has to beat
The price you pay sets how often you must be right. Kalshi also charges a trading fee on each order, which is largest for contracts near 50 cents and small near 1 or 99 cents. Check Kalshi's fee schedule for the current rates.
| Price paid | Wins needed to break even | A win pays | A loss costs |
|---|---|---|---|
| 30 cents | about 32% | 70 cents | 30 cents |
| 50 cents | about 52% | 50 cents | 50 cents |
| 70 cents | about 72% | 30 cents | 70 cents |
| 90 cents | about 91% | 10 cents | 90 cents |
A contract bought at 90 cents wins most of the time and still loses money if it wins fewer than about 91 times in 100, because one loss cancels nine wins. A high win rate says nothing by itself. What matters is the win rate compared with the price paid.
Five questions to ask about any Kalshi bot
- Can you verify the results?
- Screenshots and backtest charts are easy to fake. Ask for a record of real trades you can check, and be wary of any bot that promises a return.
- Who holds your API key?
- A bot needs a Kalshi API key to trade. Find out where the key is stored, how it is protected, and how you revoke it.
- Is there a paper mode?
- A paper mode makes the same decisions with no money at risk, so you can watch the bot for days or weeks before funding anything.
- What stops the losses?
- You should set the amount per trade and a daily loss limit yourself, and there should be a way to stop everything at once.
- How often does it trade?
- A bot that trades every market is paying fees on coin flips. A careful one skips most of them.
How the QuantPulse bot answers them
The QuantPulse bot trades Kalshi's 15-minute crypto markets in your own Kalshi account. It estimates the odds for each market from the price's distance to the target, recent volatility and the time left, and it buys only when a contract is priced below those odds after fees. It places one order per coin per market and holds to settlement.
- Results: every order and its outcome is recorded on your Results page. The bot is new, and we do not publish a performance record yet.
- Your key: it is encrypted before it is stored and never sent back to your browser. Disconnecting deletes it.
- Paper mode: every coin starts in paper mode, and the bot starts switched off.
- Limits: you set the amount per trade and a daily loss limit, and a stop button switches everything off.
The bot can lose money, and nothing here is financial advice. QuantPulse is independent and is not affiliated with or endorsed by Kalshi.