Codeon is an AI-powered code editor built on Claude's Agent SDK. It's designed to be a better alternative to Cursor, Windsurf, and VS Code with Copilot, offering features like AI code generation, intelligent refactoring, and unique tools like Agent Execution Timeline (AET) and Learning Mode.

How is Codeon different from Cursor?

Codeon offers unique features not found in Cursor, including Agent Execution Timeline (AET) for visualizing AI actions, Learning Mode for educational insights, custom Agents & Skills, and comprehensive MCP server support. Plus, Codeon uses a one-time payment model instead of subscriptions.

Does Codeon generate documentation automatically?

Yes. Codeon includes Documentation Mode, which automatically captures documentation updates after AI runs so your product docs stay in sync with the code as you build.

What is Verification Mode (Proofed Edits)?

Verification Mode runs lint, typecheck, and test commands after AI changes and generates a safety certificate, so you can trust the edits before you merge.

Codeon offers a free 7-day trial with full access to all features. After the trial, you can purchase a lifetime license for $49 (one-time payment) with 6 months of free updates.

What AI models does Codeon support?

Codeon is built on Claude's Agent SDK from Anthropic. It supports Claude models and can also work with other AI providers through OpenRouter, giving you flexibility in choosing your preferred AI model.

Does Codeon work on Mac, Windows, and Linux?

Yes, Codeon is available for macOS, Windows, and Linux. Download the version for your operating system from our website.

Now with Claude 4 Integration

Code at the Speed of Thought

The best AI code editor built on Claude's Agent SDK. A powerful alternative to Cursor, Windsurf, and VS Code Copilot. Write, refactor, debug, and ship 10x faster with intelligent AI assistance that understands your entire codebase. Prefer non-Claude models? Codeon also supports OpenRouter so you can choose from multiple providers.

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Our Goals

50K+ Developers

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Codeon

Code Agents & Skills MCP AET Learning Docs Verification

📁 myProject ‹

📁 src

📁 components

TSX Button.tsx

TSX Modal.tsx

📁 hooks

TS useAuth.ts

TSX App.tsx

TS useAuth.ts ×

1import { useState, useEffect } from 'react'
2import { supabase } from './supabaseClient'
3
4export function useAuth() {
5  const [user, setUser] = useState(null)
6  const [loading, setLoading] = useState(true)
7
8  AI// Handle auth state changes...
9  useEffect(() => {
10    supabase.auth.onAuthStateChange((event, session) => {

>_ Console >_ Terminal ⚠ Problems

[09:57:21] Claude finished

[09:57:21] MCP servers connected: supabase, filesystem

[09:58:05] Claude finished

AI Assistant

You

Add error handling to the API calls

I'll wrap the API calls with try-catch blocks and add proper error logging...

Features

Powered by
Claude Code Agent SDK

Codeon is the best AI coding assistant built on Anthropic's Claude Agent SDK. Unlike Cursor or Windsurf, Codeon gives you a true AI pair programmer that can read, write, execute, and audit every action — now with Learning and Documentation Modes built in.

Integrated Terminal

Full xterm.js terminal with PTY support. Run commands, manage processes, and let AI execute bash when permitted. Spawn multiple terminal sessions with persistent command history.

$ npm run build

Building project...

Build completed in 2.3s

$ |

Execution Receipts

Full audit trail of every tool execution — timestamps, working directory, exit codes, and network policy. Searchable, filterable, and exportable.

Tasks Panel

Track running background processes and scheduled operations. See active npm scripts, build watchers, and test runners all in one place.

Problems Panel

View linter errors, TypeScript warnings, and ESLint issues in real-time. Click to jump directly to the problematic line in your code.

Git Checkpoints

Automatic checkpoints before every AI action. One-click restore to any previous state. Never lose work — experiment fearlessly.

Learning Mode

Get a clear, educational breakdown of what the AI did and why — key concepts, reasoning, and code highlights after every run.

Documentation Mode

Auto-generate documentation updates after each AI run and export a web-ready doc set that stays in sync with your code.

Verification Mode

Run lint/typecheck/tests after AI edits and get a safety certificate so you can trust changes before merging.

Permission and Safety Controls

Choose your trust level — from read-only planning to full autonomous execution. Workspace isolation ensures AI never touches files outside your project. Network policies control what the AI can access.

Plan Mode Default Accept Edits Bypass

Multi-Chat Sessions

Run multiple AI conversations in parallel. Each chat maintains its own context, agent selection, and history. Switch seamlessly between tasks.

Monaco Editor with Diff

Full VS Code editing experience with syntax highlighting, intellisense, and inline diff view. See exactly what the AI changed with side-by-side comparisons.

Explore Codeon

Seven powerful tabs

Each tab unlocks a different superpower for your development workflow — including Learning and Auto-Docs.

AI-Powered Code Editor

Monaco-based editor with full VS Code features. Chat with AI to write, refactor, and debug code. Every change is tracked with Git checkpoints for safe restoration.

Monaco Editor Diff View Multi-file Edits Git Checkpoints

Agents & Skills Library

Create specialized sub-agents with custom instructions — Security Reviewer, API Designer, or your own. Define reusable skills the AI can invoke. Share with your team via project scope, or keep personal in ~/.claude.

Project Agents User Agents Custom Skills Skill Scripts

Model Context Protocol

Connect external tools and services via MCP. Add Supabase, filesystem access, databases, or any custom server. Import from presets or configure your own STDIO/SSE servers.

Supabase Filesystem Custom Servers Import Presets

Agent Execution Timeline

Visualize every AI action as an interactive graph. See file reads, edits, bash commands, and network requests. Click nodes to inspect details. Retry or resume from any point.

Graph View Feed View Node Inspection Retry/Resume

Learning Mode

After each AI run, get educational explanations of what happened and why. Understand the reasoning, technical concepts, and code patterns used. Level up while you ship.

Summary Reasoning Key Concepts Code Highlights

Documentation Mode

Auto-capture feature updates after every AI run. Your docs stay current, searchable, and exportable as a clean web-ready format.

Auto-Docs Web Preview Change Log Ready to Publish

Verification Mode

Automatically run lint, typecheck, and test commands after AI changes. Review a proofed certificate with pass/fail status and rerun on demand.

Auto-verify Safety Certificate Rerun Checks Session Scoped

Pricing

Simple, transparent pricing

No monthly subscriptions like Cursor or Windsurf. Try Codeon free for 7 days, then get lifetime access with a one-time payment. The best value in AI code editors.

Free Trial

$0 for 7 days

Full access to all features
Bring your own API key
Agents, Skills, MCP, AET
Git checkpoints and restore
No credit card required

Start Free Trial

Best Value

Lifetime License

$49 one-time payment

Lifetime access to Codeon
6 months of free updates
All current and future features
Priority email support
No subscriptions, ever

Buy Lifetime License

Update Pass

$24 extends 6 months

For existing license holders
6 more months of updates
Access latest features
Extends from current date
Buy anytime you need

Available in app

Code at the Speed of Thought

Powered byClaude Code Agent SDK

Integrated Terminal

Execution Receipts

Tasks Panel

Problems Panel

Git Checkpoints

Learning Mode

Documentation Mode

Verification Mode

Permission and Safety Controls

Multi-Chat Sessions

Monaco Editor with Diff

Seven powerful tabs

AI-Powered Code Editor

Agents & Skills Library

Model Context Protocol

Agent Execution Timeline

Learning Mode

Documentation Mode

Verification Mode

Simple, transparent pricing

Free Trial

Lifetime License

Update Pass

Ready to code smarter?

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Claude Code Agent SDK