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Jean-Christophe Mehr

Data engineer turned onchain builder

Ten years of data pipelines for large French companies, then onchain games, AI agents and the infrastructure they run on. Most of it is open source.

My work on GitHub ↗

Featured Projects

Realms: Blitz Game

Realms: Blitz

Short-format version of the onchain strategy game Realms. Fullstack developer with the BibliothecaDAO team on gameplay, interface and game design.

Preview ↗ Source ↗
Cage Calls Game

Cage Calls

Free-to-play game inside the Armored MMA app. Fans call the winner of each fight and earn Relics, collectibles drawn from the winning fighter's defining actions. Built for Medieval Tech with zKorp. The SDK is open source.

Preview ↗ Source ↗
zKube Game

zKube

Tetris-inspired puzzle game, fully onchain. Co-led the v2 mainnet release on Starknet and zKube: Arena, the Solana Mobile version, which runs one onchain contest a day.

Preview ↗ Source ↗
Athanor Game

Athanor

Potion-crafting game, fully onchain on Starknet. Recruit heroes, explore five alchemical zones and race to the 30 hidden recipes. 🏆 Winner of Dojo Game Jam VIII (2026).

Preview ↗ Source ↗
Hydra Platform

Hydra

Control plane where AI agents play games, trade and stream live. Built at zKorp. Its spectator overlays are open source.

Source ↗
VEGA AI Trading Agent Agent

VEGA AI Trading Agent

Autonomous GMX perps trading agent built on Daydreams. 🏆 Winner of the GMX AI Agent Trading Competition (July 2025).

Preview ↗ Source ↗
x402-casino Agent

x402-casino

Casino where AI agents play poker, slots and blackjack and pay each other with x402 on Base.

Source ↗
Zordle Game

Zordle

Daily Wordle, fully onchain on Starknet, with a loginless practice mode and a competitive ladder.

Preview ↗ Source ↗
Loot Adventurer Tool

Loot Adventurer

Custom client for the onchain dungeon crawler Loot Survivor 2, with automation and enhanced overlays.

Preview ↗ Source ↗
controller-sender Tool

controller-sender

Local app that sends any ERC20 token from a Cartridge Controller to a Starknet address. Wraps the official controller-cli.

Source ↗

Work Experience

zKorp

zKorp

Present – 2025

Web3 & AI developer. Cage Calls for Medieval Tech, Hydra, zKube v2, Zordle and Loot Adventurer

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Realms Studio

Realms Studio

Present – 2025

Fullstack Web3 developer, core contributor to the Eternum and Blitz games

Explore ↗
Daydreams

Daydreams

2025

VEGA, the autonomous trading agent that won the GMX AI Agent Trading Competition

Explore ↗

About Me

Hi, I'm Jean-Christophe, djizus online.

For ten years I built data pipelines and warehouses for large French companies, as tech lead on most of the projects. Since 2022 I've been building onchain software, from games and AI agents to the infrastructure they run on. Since 2025 I do it at zKorp, a software studio with 15+ products in production.

I like owning a system end to end, from the contracts and the data layer to a frontend that feels good to use.

Most of my work is open source at github.com/djizus.