Put your trading ideas to work.

Build and test a crypto trading bot on your own computer. Krellbot gives you a fully open-source engine, with Strategy Packs when you want a head start and room to build your own with AI.

Get Krellbot free Browse Strategy Packs

MIT licensed · Runs locally · Backtesting and paper trading included

Krell, the Krellbot guide, in the supplied design: hazel eyes, black glasses, teal-tipped bob, open black hoodie, tattooed human right forearm and robotic left forearm — KRELL

KRELLBOT / PROPOSED WORKSPACECONCEPT ARTBOARD

Proposed Krellbot workspace concept with named bots, portfolio and decision explanations

Proposed interface — not the current release Click to enlarge the concept preview

Strategy Packs

Go straight to the shortlist.

Spend your time finding a strategy that fits how you trade. Krellbot’s maintained packs give you ready-written rules and historical backtests to work from, including trading costs and the periods when things went badly.

Explore strategies tested on years of Kraken and Coinbase market history, then try the ones that interest you on your own machine.

$39/month for the maintained catalog and updates.

The planned subscription. Checkout is currently test-only; paid access is not launched.

Browse the packs

Historical results include the stated fees and slippage. Backtests do not predict future returns.

Published historical results

Loading the maintained catalog…

Test checkout — no live charge

AI-assisted development

Build with the AI you already use.

Have an idea for a bot? Work through it with your AI assistant, then test the strategy in Krellbot. Bring back the results, change a condition, and run it again.

Strategies are readable files containing the trading rules. You can see what your assistant wrote and how the engine interprets it before putting it to work.

See the strategy format

Krell reviewing results on a laptop, illustrating the strategy testing and refinement process

Open source

Make Krellbot your own.

Use it as it comes, or change the parts you wish worked differently. The engine is MIT-licensed, and running your own strategies doesn’t require a subscription.

If you build something useful, we’d love to see it.

Find us on GitHub

Krellbot runs locally and connects directly to your exchange. krellbot.dev doesn’t receive your exchange credentials. Read how credentials and trading permissions work in the security guide.

Krell working on a small robot at a workbench, an illustration of making and modifying your own bot

Getting started

See your first bot trade on paper.

Start with simulated funds and watch how a strategy behaves. The guide walks you through an example so you can check its trades and experiment with the rules.

Run your first paper bot Install Krellbot

Krell working at her desktop computer, using the keyboard and mouse; the screen chart is illustrative — Illustration, not trading results.

Current release install commands

macOS arm64

curl -fsSL https://krellbot.dev/api/install?os=mac | sh

Open Terminal. On a Mac, press Command-Space, type Terminal, and press Return. Paste the command. Press Return. Linux x86_64: use os=linux instead of os=mac.

Windows PowerShell

irm https://krellbot.dev/api/install?os=win | iex

Open PowerShell. Press the Windows key, type PowerShell, and press Enter. Right-click in the window to paste. Press Enter. This command installs the existing public release, not the new Signal workspace preview.

The public installer remains pinned to release v0.9.4; the new Windows Signal preview is not yet available. Downloads are SHA-256 pinned, not code-signed or Authenticode-signed. A checksum checks integrity, not publisher identity. The installer is release-gated: if no valid release is available for your platform, it refuses installation. Review the script before running it. See Getting started and Security.

Quickstart commands

Walk through the guide

Show quickstart commands

After the install, open a new terminal window. See what is installed

krellbot list

Optional, for maintained packs only: add your activation key. The free engine and your own strategies do not need one.

krellbot setup <activation-key>

Save your exchange key in a text file. Line one is the key. Line two is the secret. Trade stays on. Withdraw stays off.

krellbot keys add kraken --file key.txt

Backtest a pack against cached candles

krellbot backtest pack.json --venue kraken

Arm a pack in paper mode first.

krellbot arm pack.json --venue kraken --mode paper

Install the hourly tick schedule under your OS scheduler

krellbot service install

Open the local dashboard

krellbot ui

Write your own runnable JSON pack in ~/.krellbot/packs/ using schema_version: 1. An id and public_label alone are legacy: not runnable. See Pack format for the full schema.

From the founder

I want Krellbot to become the first place people go when they want to build a crypto trading bot. Giving away the engine is a big part of that.

AI is changing how people build software. I want Krellbot to give them an open platform they can take further than I could on my own.

The Strategy Packs are how I intend to fund that work. If they save you time, I hope you’ll subscribe. If you’d rather build everything yourself, I hope you’ll do it here.

Founder & Lead Engineer, Krellbot