Krypt PolyBot Setup Guide: Free Polymarket Bot, FAQ & Tips
Krypt PolyBot is a free, open-source desktop app for trading on Polymarket. Connect Claude, Cursor, Codex or any MCP client as a named AI trader fenced in by caps and a loss stop, trade any market by hand, and run engines that watch the public trade feed for whales and momentum, trade the short-term crypto Up/Down markets, copy wallets you choose, or make markets on Polymarket Perps.
Your wallet key and every trade stay in a local database on your machine. This guide covers installing it, trying it on paper, adding a wallet safely, and going live.
What Krypt PolyBot does
- AI agents: connect Claude Desktop, Claude Code, Cursor, Codex, Windsurf or VS Code over MCP. Each named agent gets your own guide, rules and caps, and a scoreboard checks whether it actually beats the market.
- Autopilot: the app runs one of your agents on a schedule with your own AI key, inside daily run and token budgets.
- Trading terminal: four live discovery columns or your watchlist, then a full market page with probability chart, order book, trade tape, your position and an order ticket.
- Whale tracker and momentum scanner: flags $2.5k+ taker orders, volume spikes and trade clusters, and can trade them under your gates and sizing.
- Short-term crypto: 5-minute, 15-minute, hourly and 4-hour Up/Down markets for BTC, ETH, SOL, XRP and more, with a settlement model that matches how they resolve.
- Copy trading: follow wallets you choose and mirror their entries at your own size.
- Perps market maker: quotes both sides on Polymarket Perps, with inventory caps, loss limits and a dead man's switch that pulls quotes if the app dies.
- Resolution risk, cross-venue prices from Kalshi (read-only), standing rules (stop loss, take profit, alerts), Python strategy scripts, AI analysis of a market's rules, and remote control from Discord or Telegram.
The one-click strategies
Krypt PolyBot ships with one-click strategy presets you can set per category (politics, crypto, sports, culture, finance and news) on 5-minute, 15-minute or 1-hour windows:
- Momentum: follows markets whose price is moving sharply in one direction.
- Whale Follow: reacts when the whale tracker spots a whale-sized position entering a market.
- Sentiment Shift: looks for markets where the balance of opinion is changing.
- Volume Spike: reacts to sudden surges in trading volume.
- Trend Continuation: bets that an established move keeps going.
- Mean Reversion: the opposite bet, that a stretched price drifts back.
- Spread Scalp: works the gap between bid and ask, so it suits busy, liquid markets.
- Manual Mode: the bot watches and alerts; you make every decision.
Tune them with confidence thresholds, whale size filters, liquidity requirements, risk tolerance and timing windows, and cap them with take profit, stop loss, cooldowns, max exposure and position sizing. A big order is information, but not always the kind you think: it can be a hedge or someone moving the price for their own exit, so pair Whale Follow with a liquidity requirement.
How to download and install Krypt PolyBot
Windows is the main build; the macOS and Linux builds get less testing. The full source is linked from the tool page if you'd rather read it first.
- Open the Krypt PolyBot page on krypt.cc. That page is the only official download; copies re-uploaded elsewhere can be modified.
- Pick the build for your system (Windows, macOS or Linux).
- Read and accept the Software Download Terms in the prompt. The file downloads as soon as you agree, and you won't be asked again for that tool until the terms change.
- Optional but sensible: upload the file to VirusTotal before you run it.
Windows
- Run the installer you downloaded.
- If Windows SmartScreen says "Windows protected your PC", click More info, then Run anyway. Krypt builds aren't code-signed yet, so SmartScreen treats them as unrecognised apps. That warning is about the missing signature, not about anything it found in the file.
- Follow the installer, then launch Krypt PolyBot from the Start menu or the desktop shortcut.
macOS
- Open the download and drag Krypt PolyBot into your Applications folder.
- The first time you open it, macOS blocks it because it's from an unidentified developer. Click Done, then go to System Settings → Privacy & Security, scroll down and click Open Anyway next to Krypt PolyBot. On macOS 14 and older you can instead right-click the app and choose Open.
- If macOS instead says the app "is damaged and can't be opened", the file isn't damaged: Gatekeeper is refusing an unsigned download. Clear its quarantine flag once in Terminal, then open the app again:
xattr -cr "/Applications/Krypt PolyBot.app"If you saved the app somewhere other than Applications, drag it from Finder into the Terminal window after xattr -cr to paste its real path.
Linux
The Linux build is an AppImage: one file, nothing to install. Make it executable, then run it:
chmod +x ./*.AppImage
./*.AppImageOr right-click it in your file manager, tick Allow executing file as program in Properties, and double-click it.
Start on Paper (no wallet needed)
The app opens in Paper mode: the real Polymarket order books with imaginary money. No wallet needed, so connect an agent and try everything first.
Know this before you go live: Paper covers your own orders and your AI agents. The automated engines (main engine, crypto, copy trading, Perps and live scripts) are not simulated. In Paper they send nothing; once you go Live, any engine that's switched on trades for real. Every engine ships off.
Add a wallet safely
Polymarket settles on Polygon in USDC, so live trading needs a Polygon wallet holding USDC.
- Create a dedicated trading wallet. Don't use a wallet that holds anything else.
- Fund it with only what you intend to trade.
- In Krypt PolyBot, open Wallet and paste that wallet's private key.
On Windows the key is encrypted at rest (DPAPI), tied to your Windows user account, and only ever used to sign orders on your machine. A private key controls everything in its wallet, so never paste it anywhere else, and never share it.
Connect an AI agent
- Open AI Agents and connect your client. No token goes into any config file.
- Create a named agent with its own guide, rules and caps.
- Let it research and trade on paper, then watch the scoreboard.
The backend enforces the rails on every order, whatever the agent says: a buy must cite the agent's own forecast, which has to beat the price after fees; live orders wait for your approval by default; an agent can only sell what it opened; caps and a daily loss stop always apply. Whole-account powers are a separate switch, off by default.
Going live
- Add your wallet (above).
- Go to Settings → Account → Go live. The checklist tests your wallet and lists everything that will start spending.
- Switch on only the engines you want: main engine, crypto, copy trading, Perps and live scripts each have their own switch.
- Set the breakers: daily stop-loss and take-profit, the lifetime drawdown breaker and trading-hours windows.
Pause everything is one switch, and works from your phone with /pause if you've set up remote control.
Quick tips
- Run the fee-aware backtest on your own recorded data before trusting any setting.
- New strategy scripts start in shadow mode and only record what they would have traded until you arm them.
- Read Resolution risk before trading a market: wording and resolution source decide the payout.
- A dash (
—) means the app couldn't get that number. It's unknown, not zero. - Settings → Data & privacy lists every outbound host the app talks to, with one switch to turn them off.
- The full feature guide is linked from the tool page.
Krypt PolyBot FAQ
Is Krypt PolyBot really free?
Yes. It's free and open source under the MIT licence.
Is Krypt PolyBot safe and legit?
Krypt PolyBot is published by Krypt, and the only official download is on krypt.cc. The source code is public on GitHub, so you, or anyone, can read exactly what it does. Builds aren't code-signed yet, which is why Windows SmartScreen or macOS may warn you the first time; the install steps explain it. Never download it from a re-upload, and if you want a second opinion, scan the file on VirusTotal before opening it.
Do I need a wallet to try it?
No. Paper mode trades the real order books with imaginary money and needs no wallet. You only add one to go live.
Is it safe to give it my private key?
It stays on your machine, encrypted at rest on Windows, and is only used to sign orders locally. The app has no telemetry and no Krypt account. Still, use a dedicated wallet holding only what you mean to trade, because a private key controls the whole wallet.
Does it work with Polymarket US?
No. For the US exchange, use Polybot US, which signs in with a Polymarket US API key instead of a wallet.
Why didn't my engine trade in Paper mode?
Engines aren't simulated: in Paper they send nothing. Paper covers your own orders and AI agents. Engines only trade once you go Live and switch them on.
Will it make money?
There's no guarantee. On the recorded data, every bundled strategy measures net-negative after fees. Use the scoreboard and backtests to measure your own setup.
Is Krypt PolyBot affiliated with Polymarket?
No. It's an independent open-source app. Follow Polymarket's terms and your local laws; eligibility varies by region.