Desktop trading bot · macOS & Windows

Your strategy.
Running while you're not.

DonjaBot is a desktop app that trades prediction markets on your own exchange account, using rules you set. It runs on your computer, with your API key, under your control — and it stops the moment you tell it to.

Get DonjaBot — $30 Get notified at launch See how it works

One payment. No subscription. Yours to keep.

$30, one payment, no subscription. Nearly ready — leave your email and we will tell you the day it is.

The DonjaBot dashboard,
         showing account balance, open positions and an equity curve.
Simulation mode. Figures are one test account's play-money results and are not a forecast, a promise, or typical — yours will differ.

How it works

Three steps, then it runs on its own.

No account with us, no server in the middle. The app talks directly from your computer to your exchange.

STEP 01

Connect your account

Create an API key at your exchange and paste it in. It's stored in your operating system's keychain and never leaves your machine.

STEP 02

Set your rules

Choose which markets to watch, what edge to require, how much to stake, when to take profit and when to cut. Tune it, then apply.

STEP 03

Let it work

It scans, places orders, and manages exits while you're asleep or busy. Pause or stop it from the sidebar at any time.

What you get

You configure it. It doesn't decide for you.

Straight talk

The part most sites leave out.

Plenty of trading software is sold with a chart going up and to the right. We would rather you knew exactly what you are buying, and what it cannot do, before you spend anything.

Trade only with money you can afford to lose entirely. That is the one rule that matters. Start small, use simulation to get your settings where you want them, and scale up only when you are comfortable with what it is doing.

Editions

One engine, wired for your exchange.

Same app, same controls. Each edition speaks to one exchange, and they run side by side if you want both.

Available now Almost ready

DonjaBot for Kalshi

Trades event contracts on your own Kalshi account. Sports, and any other category you switch on.

$30 one time
Buy — $30

TODO: point at the real checkout link

Tell me when it is out:

TODO: wire to an email list

In development

DonjaBot for Polymarket

The same engine, wired for Polymarket. Being built now, and it will go on sale here when it's genuinely ready — not before.

Soon

Get an email when it's out:

TODO: wire to an email list

Before you buy

System requirements.

There's no free trial, so please check this list first. If it won't run on a supported machine, we'll refund you.

macOS
macOS 10.15 or later. Apple Silicon and Intel.
Windows
Windows 10 or later, 64-bit.
Exchange account
Your own funded account, and an API key you create. Not included.
Internet
A connection that stays up. The bot can't manage positions while offline.
Left running
The app must stay open to keep trading. It doesn't run in the cloud.

Questions

Fair questions.

Do you ever see my money or my API key?

No. Your key is stored in your computer's keychain and sent only to your exchange. Your funds stay in your own exchange account — we never hold, receive, or have access to them. There are no accounts with us at all.

Why does Windows warn me when I install it?

New applications build reputation with Microsoft over time. Until enough people have downloaded a release, Windows may show a warning even for properly signed software. It goes away as the release ages.

Can I try it before buying?

Not before buying, no — it's a single $30 purchase for the whole thing. Simulation mode is included once you own it, so you can test settings with play money before going live. And if it won't run on a supported machine, or doesn't do what this page says, we'll refund you.

What happens when the exchange changes something?

We ship an update and your app offers it to you. That channel exists because it has happened before — an exchange retired an endpoint and trading stopped until it was fixed. Without an update channel, a change like that would have bricked every copy permanently.

Do I need to know how to code?

No. Everything is sliders, number boxes and plain-English labels. You never see or write any code.

Can I run the Kalshi and Polymarket editions at the same time?

Yes, once the Polymarket edition is out. They're separate purchases and separate apps, each with its own settings and history.

Is this affiliated with Kalshi or Polymarket?

No. DonjaBot is an independent product. Those names identify which exchange each edition connects to; nothing here is endorsed by or affiliated with them.