Vibe Coding & AI Agent Developer

I orchestrate AI agents (Claude Code, Cursor) to ship production code — smart contracts, trading bots, and full-stack apps.

About this page

checkra1n (GitHub: checkra1neth) is a vibe coder and AI agent developer who builds production software by orchestrating Claude Code and Cursor instead of typing every line manually. Bing search data shows strong demand for vibe coding (199K impressions/3mo), ai coding (17.8K), ai agent (82.7K), and claude code cli (83.7K). He applies this workflow to Web3: Uniswap v4 hook protocols on Base, Polymarket trading bots in Rust, and AI-assisted smart contract audit pipelines (Slither + Claude Code). 15+ years in crypto since 2011. Remote from Ukraine. Available for freelance AI-coding consulting and Solidity/Web3 contract work. Contact: GitHub checkra1neth, Farcaster @checkra1n, Telegram t.me/checkra1ndev, Threads @checkraindev. Not the iOS jailbreak checkra.in.

Location: Ukraine (remote) | Focus: Solidity, DeFi, AI agents, trading bots

Stats

15+ years in crypto (since 2011)
Languages: Python, TypeScript, Swift, Rust, Solidity
Platforms: Web Apps, Browser Extensions, Telegram Bots, CLI, AI Agents

Backstory

Crypto native with mainnet deployments across DeFi, prediction markets, and AI security tooling. Production experience with Uniswap v4 hooks, Polymarket automation, and Claude-assisted audit workflows.

Timeline

2011 — Genesis block. Discovered Bitcoin on a hacker forum as a teenager. Mined BTC on my first PC.

2014 — Automation pioneer. Built bots to farm Bitcoin faucets at scale.

2018 — DeFi awakening. Early adopter of Uniswap, 1inch, Compound, Aave.

2022-24 — Retrodrop era. Full-time onchain hunter across L2s and DeFi protocols.

2025 — AI transformation. Built the first AI-powered trading bot. Embraced Vibe Coding.

2026 — Agentic future. Building autonomous AI agents and decentralized intelligence systems.

Skills

DeFi / Web3: 92/100
AI Integration: 78/100
Automation: 88/100
Trading Bots: 75/100

Platforms: Web Apps, Browser Extensions, Desktop (Mac), Telegram Bots, CLI Tools, AI Agents

Frameworks: React, Next.js, Scaffold-ETH, Vite, FastAPI, Tauri

Projects

SENTINEL — Self-Funding Security Oracle on X Layer. Monitors tokens, publishes on-chain verdicts. (GitHub)
DOSSIER — On-chain wallet intelligence agent. 14 commands — analytics, token actions, monitoring. (GitHub)
XBIRD — Twitter/X integration system + MCP skill for AI agents. Core API for Claude Code, Cursor, Windsurf. (GitHub)
FANOVO — Uniswap v4 hooks-based prediction market and fantasy sports protocol on X Layer. (GitHub)
POLYMARKET BOT — Rust-based Polymarket trading suite. Arbitrage bot + hedged pairs with mathematical risk controls.
CHECKRA1N-AUDIT — AI-powered smart contract security auditor. Slither + Aderyn + LLM reasoning.
MEXC FUTURES BOT — Automated MEXC futures trading bot with 200x leverage. Python-based position management.
CLAUDE BRAIN — Simple Claude brain implementation in Rust. Memory and context management for AI agents.

Mission

Architect autonomous AI agents that build, audit, and trade onchain
Interests: MEV, intent-based architectures, AI-driven security research
Business: SaaS automation, smart contract audits, AI consulting
Networking: Open to collaborations on Web3 + AI intersection

Links

GITHUB | TELEGRAM | THREADS | FARCASTER | TWITTER / X

FAQ

What is vibe coding?

Vibe coding is a development workflow where you describe intent and AI agents (Claude Code, Cursor) write the code. You direct agents with specs and reviews instead of typing every line. See checkra1n.dev/intel/vibe-coding-agents for a real example.

What is an AI agent in software development?

An AI coding agent is an LLM-powered tool that reads your codebase, executes multi-step tasks, and writes files — like Claude Code CLI or Cursor Agent mode. checkra1n built a 7-stage blog pipeline using Claude Code agents.

What technologies do you work with?

Claude Code, Cursor, Solidity, Rust, TypeScript. AI-native development plus onchain systems — smart contracts, trading bots, audit pipelines.

Are you available for freelance or contract work?

Always open to interesting collaborations — vibe coding consulting, Web3 contracts, bot architecture. Contact via Farcaster, Telegram, or GitHub.

What is your experience with crypto and blockchain?

15+ years in the space. Built Uniswap V4 hooks, Polymarket trading bots in Rust, AI smart contract audit pipelines, and onchain automation — now shipped primarily via AI agent workflows.

Do you speak English or Ukrainian?

Both. Bilingual developer — blog content is published in English and Ukrainian.

What projects are shown in the portfolio?

AI agent projects (7-stage Claude Code blog pipeline, XBIRD MCP skill), Polymarket bots, Uniswap V4 hooks, MEXC futures bots, and AI audit tools.

Latest Blog Posts

AI Level Zero — Complete Beginner Guide to ChatGPT & Prompts — Zero to AI in one guide: pick your first chatbot, understand the interface, write better prompts, avoid 20 rookie mistakes, and try 10 hands-on exercises.
AI Рівень 0 — повний гайд для початківців — Від нуля до AI: обери перший чатбот, зрозумій інтерфейс, пиши кращі промпти, уникни 20 типових помилок і спробуй 10 практичних вправ.
Що таке Vibe Coding? — Що таке vibe coding з AI? Практичний гайд: як я збудував блог-систему через Claude Code агентів — нуль ручних натискань.
AI Pair Programming з реальними грошима на кону — Як 20 сесій Claude та 80 перезапусків бота створили торгову систему для Polymarket. Реальна історія AI-розробки коли кожен баг коштує справжніх доларів.
From X Layer Hackathon to Base Mainnet — How we rebuilt Fanovo tokenomics for Base: sale-first liquidity, Chainlink VRF packs, and UUPS upgradeable contracts — 18 Cursor sessions later.
Three Bugs That Nearly Killed Our Web3 Hackathon Project — CORS, commit-reveal race conditions, and Map size exceeded — surviving a 10-day hackathon on X Layer with Uniswap V4 hooks.
Debugging a 200x Leverage Bot When the Numbers Do Not Add Up — How I spent 3 days debugging PnL discrepancies in a MEXC futures bot. Real money, real trades, and a single wrong assumption that broke everything.
I Built a 7-Stage Blog Pipeline with Claude Code — Build a 7-stage blog pipeline with Claude Code skills. From topic to published post with translations, SEO, and Telegram announcements.
Claude as Copilot for Live Trading — How I use Claude Code as a copilot for live trading bot development. Real-time debugging, architecture decisions, and shipping faster.
What Is Vibe Coding? — What is vibe coding with AI? A practitioner guide: how I built an entire blog system with Claude Code agents — zero manual keystrokes.