Why Self-Hosting Your Trading Bots on KryllOS Changes Everything

When you use an online trading bot, here's what happens behind the scenes: you hand over your exchange API keys to a third-party server. Those keys grant access to your account. They can place orders, check your balances, and sometimes even withdraw funds. And they're stored somewhere, on infrastructure you don't control, can't audit, and whose security depends entirely on a team you don't know.

Most of the time, it works. Until the day it doesn't.

What happens when a third party stores your keys

In December 2022, trading bot platform 3Commas confirmed the leak of 100,000 API keys from its users on Binance and KuCoin. Millions of dollars were stolen through fraudulent trades placed using the stolen keys. The co-founder initially denied any breach before eventually admitting the facts. The FBI opened an investigation.

In November 2023, trading firm Kronos Research lost $26 million in ETH following unauthorized access to its API keys.

These are not isolated incidents. This is a structural risk. The moment your API keys pass through a third-party server, they become a target. And the attack technique is devastatingly effective: attackers don't even need to withdraw your funds directly. With your keys, they place loss-making sell orders against their own bots, draining your account through unfavorable trades.

Self-hosting: the concept in 30 seconds

Self-hosting is simple: the software runs on your machine. On your own computer, or on a VPS (a private server) to keep your bots running around the clock.

Think of the difference between storing your photos on Google Photos versus keeping them on a hard drive at home. In one case, you're trusting a third party. In the other, you stay in control. Self-hosting a trading bot is exactly the same principle, applied to something far more sensitive: access to your trading accounts.

What it changes in practice

Your API keys never leave your machine
This is the fundamental point. They are stored locally, on your own infrastructure. No one else has access. No third-party server, no centralized database that can leak.

A 3Commas-style scenario is structurally impossible
When a SaaS platform gets compromised, potentially every key from every user is exposed. With a self-hosted bot, there simply is no centralized key database to steal. Every user is an island. To access your keys, an attacker would need to compromise your specific machine.

Your trading data stays private
Your strategies, your performance, your trade history, everything stays local. No data is sent to an external service.

No single point of failure
If a SaaS platform goes down (maintenance, outage, bankruptcy), all its users are offline at the same time. Your self-hosted instance depends only on you.

The code is verifiable
When the bot is open source, youm, or the community, can inspect exactly what the software does with your keys. No black box.

Self-hosting and responsibility

To be transparent: self-hosting gives you power, and that power comes with responsibility.

When you host your own bot, the security of your instance falls within your own perimeter. A poorly configured VPS, inadequately protected access, and you reintroduce the very risks you were trying to avoid.

This is something we care deeply about at Kryll. Cybersecurity is not an afterthought bolted on at the end of a project. It is a core pillar of KryllOS development, and we approach it with the utmost seriousness. We're also preparing a dedicated security article for those who want to understand in depth how we tackle these challenges.

How KryllOS is built for self-hosting

KryllOS is not a SaaS product retrofitted into downloadable software. It was designed from day one to run on your machine.

Your API keys are stored locally on your machine and are never transmitted to a third party. The code is open source and auditable by anyone. KryllOS does not hold your funds, does not have access to your keys, and takes no fees on your trades. It is software you own and control, not a service you depend on.

Installation will be accessible to all profiles: a guided installer for beginners, and a command-line installation for those who prefer the terminal. Use your personal PC to experiment, or a VPS for continuous trading.

KryllOS is built for traders who refuse to hand their keys to just anyone. If that's you, join the waitlist and be the first to know when it launches and get access from day one. → Join the KryllOS Waitlist