and Free Smart-Contract Security Audits

Callisto Network is a decentralized open source crypto platform based on the go-Ethereum source code with its own cryptocurrency ‘CLO’. The main goal of Callisto is to research and develop a reference implementation of a self-sustaining, self-governed and self-funded blockchain ecosystem and development environment.

White Paper
Hero Art
CLO Cold Staking

First Cold Staking Coin

Cold Staking is a protocol that rewards long-term coin holders for holding their CLO coins. Cold Staking is not related to PoS nor a consensus mechanism. Cold stakers receive passive income for holding their coins.

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CLO Smart Contracts

Free security audits via a fine-tuned audit process

Smart-contract hacking results in millions of dollars of lost revenue for the whole ecosystem. The Callisto Network offers a completely free service to audit professionally written smart-contracts.

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On-chain governance system

Callisto Network is a reference implementation of a self-sustained, self-governed, self-funded blockchain ecosystem.

Scalability of the CLO and ETC networks

Callisto aims to establish a secure and contribution-friendly environment for further protocol development and improvements.

Financial transparency

Callisto aims for full financial transparency. Check out our financial report below.

Financial report


Up to date roadmap report

Roadmap Element
Q1 2018
  • Update ClassicMask with Callisto Network
  • Snapshot taken of the Ethereum Classic balances for a 1:1 CLO airdrop
  • Launch Testnet 2.0
  • Research the possibility of a POS and DPOS protocol implementation.
Roadmap Element
Q2 2018
  • Launch the CLO Mainnet (Est. April 15, 2018)
  • DexNS support for the Callisto protocol
  • Marketing team creation
  • Launch the explorer with advanced features such as:
    • Readable transactions including smart contracts instructions
    • Token explorer
    • Testnet support (Callisto, Ethereum, Ethereum Classic)
Roadmap Element
Q3 2018
  • Formation of the Security Department of Callisto (Solidity)
Roadmap Element
Q4 2018
  • Planned Hardfork No. 1: Cold staking implementation
  • eWASM implementation research
  • Formation of the Security Department of Callisto (EOS)
Roadmap Element
Q1 2019
  • Decentralized File Storage research and reference implementation
  • Interchain operability research
Q3 2019
Roadmap Element

Security DAO Codex release
Cold Staker's Codex release

Q4 2019
Roadmap Element

Planned Hardfork No. 2: On-chain governance system


Our markets as of today

Price$0.00714048790.0000011167 btc
Volume$12,305.1111.9244506629 btc
Market Cap$3,869,941605.2371560862 btc

We are currently listed on the following exchanges:

Stocks Exchange
Simple Swap
HitBTCComing soon


Callisto (CLO) is a minable coin with a PoW algorithm.

Technical details

Block reward

600 CLO

(30% treasury fee)

POW Algo

Dagger Hashimoto


100% compatible with

Ethereum Virtual Machine

The maximum supply:

6,500,000,000 CLO

Block reward reduction:

32% each 5,000,000 block

Block interval

~15 sec

Our Team

Meet the people that are going to take your business to the next level

CEO, Security Engineer

My main specialty is information security. I’ve been an Ethereum smart-contracts developer since its first days. I created the ERC223 token standard and founded DEX ICO and the Ethereum Commonwealth. I was formerly a security auditor.

Yohan Graterol
Yohan Graterol
CTO & Main Callisto Developer

Hi, I’m a backend developer (Python and Go) with over seven years of experience. I have worked for as a Head of Product for three years. The cryptocurrency world is my passion.

Carlos Sampol
Carlos Sampol
Head of Web Development

Skilled in the Frontend development Environment with knowledge in HTML5/CSS3, Javascript (React JS) and Backend Environments with Node.js. Worked in several important startups such as Platzi or GoRead

Nick Sawinyh
Nick Sawinyh
Head of Marketing

I have over 12 years of experience working in digital marketing and product management. My specialties include product development, brand awareness, and omnichannel marketing campaigns.

Darwin Ongko
Darwin Ongko
Callisto Community Manager & Callisto Indonesia Ambassador

I have over 8 years of experience working at a life insurance company as an agency manager for Prudential Life Assurance and 7 years at Generali Indonesia as an Agency Business Director, managing more than 4,000 people from 10 cities in Indonesia within the agency.

Dardan Latifi
Dardan Latifi
Head of Social Media

Extensive experience in engineering & management, specialized in storage and SAN networks. More than 10 years’ experience in information technology, with hands-on experience in research, design, and implementation of new technologies and system integration.

Methw - Nug
Methw - Nug
Documentation Writer

Strong information technology background with a Bachelor of Science (B.Sc.) in Computer Science and electronics. Diverse IT experience with a demonstrated history in network administration, cloud computing, blockchain technology and cryptocurrency.

Tio Toi
Tio Toi
Head of Community

Motivated, worked as an IT project manager for over 13 years. Owner of ProffeeCa since May, 2016. Enthusiastic and loves to learn new things.

Yuriy Kharytoshyn
Yuriy Kharytoshyn
Security Auditing Manager

I’m Information Security expert with over 18 years experience. Backend Developer (C/C++, Python, PHP, Assembler) of InfoSec related projects. Since 2016, focused on Blockchain technologies and Smart contract security. A Master of Science (M.Sc.) in Computer Science and Мathematic.

Blog and Press

Callisto Network Telegram AMA 20/08/2018

August 16, 2018

Excited to announce our next AMA with Callisto co-founder and CTO Yohan Graterol 📆 August 20th, 9PM (CEST) ~ 2PM (UTC -5). Join our Telegram channel and make sure to be there!

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Callisto Network Affiliate Program launches today

August 14, 2018

Today we’re excited to launch a new referral program that will pay you 20000 CLO for any qualified Smart Contract Audit lead that you refer to us.

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Callisto on Ledger Nano S: Building a secure app

August 08, 2018

EIP-155 Replay Attack Protection Now Available on the Callisto Network for use with Ledger Nano S As described in Wikipedia, a replay attack (also known as a playback attack) is a “form of network attack …

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