MonkeyCode: Free Open-Source AI Coding Platform by Chaitin, Zero-Threat Cloud Development

MonkeyCode is an open-source enterprise AI development platform by Chaitin (奇安信), featuring built-in cloud development environments and support for top-tier LLMs. 30 million free daily credits, no installation or deployment needed — complete the entire coding, testing, and running workflow right in your browser.

What is MonkeyCode?

In short: if you want to build a website, a small tool, or a demo, but don't want to install CodeX, Claude Code, or other tools, and don't want to spend time learning how to use them — MonkeyCode might be perfect for you.

It differs from typical vibe coding tools — it's a real AI assistant designed for professional development teams. The core code is fully open-source on GitHub, with 4.3k stars.

Free Credits

MonkeyCode offers free usage with built-in development environment management, AI model management, AI task management, and project requirement management capabilities.

• Daily free credits: 30 million free积分 per day, sufficient for daily tasks
• Referral bonus: Invite friends to earn 5000积分 per referral; a typical task costs about 200积分
• Flagship models: Also available, but consume more积分

The overall free quota is enough for daily tinkering with small projects.

Supported Code Repositories

You can bind your code repository address on the platform. It supports multiple platforms — GitHub is mainstream, and domestic platforms like Gitee are also supported.

Test Case 1: AI Development Data Page

Used the ZhiJi model 5.5 (just a different name, it's the familiar 5.5 model) to create a data visualization task:

• Goal: Collect and organize significant developments in AI over recent years
• Output: A complete, runnable HTML page
• Theme: AI Development Observatory: From Large Models to Intelligent Agents
• Style: Clean, clear information, suitable for web display, WeChat article images, or course materials

Execution took about 4 minutes. Runs directly in the cloud — no deployment needed. The URL shows it's externally accessible. The color scheme and layout are clean and fresh.

Test Case 2: Space Fighter Mini-Game

This case best demonstrates MonkeyCode's capabilities — building a complete game from scratch.

V1: Framework exists, visuals are crude

The game rules are simple: control a spaceship moving left and right in space, dodge falling meteors, and collect glowing energy orbs. Includes countdown, health, and score systems.

The first version had the right framework, but the visuals were too basic — just simple shapes with some glow effects.

V2: SVG vector assets

Asked MonkeyCode to optimize the art assets into SVG format:

• New ship sprite: ship.svg
• New meteor sprites: meteor-1.svg, meteor-2.svg
• New energy orb: energy-orb.svg
• New nebula background layer: nebula.svg

Now the fighter and meteors have some recognizability, but the SVG-generated graphics still have a patched-together feel.

V3: PNG transparent sprites

Generated PNG images with alpha channels for better detail. Transparent backgrounds integrate better into the game. Fed these reference images back to MonkeyCode for further art asset optimization — the visuals improved noticeably.

V4: UI polish

Added health bars, icons, and other UI details. Finally added combat elements with enemy fighters. What started as a crude demo evolved into a polished mini-game — all in the cloud, no local setup or deployment required.

Test Case 3: HTML to PNG Tool

HTML is great for complex layouts — cards, timelines, tables, infographics, course pages. But many platforms can't display HTML directly: WeChat articles, Xiaohongshu, Moments, PPT presentations all prefer images.

Built an HTML-to-PNG converter tool with MonkeyCode:

• Left panel: HTML code input area
• Right panel: Real-time preview of rendered image
• Export quality adjustable up to 4K

The tool was ready in a few minutes. Used it to create a model encyclopedia page (company models, market cap, founding dates) and export as PNG for easy sharing.

Summary

MonkeyCode solves two biggest problems: no installation needed, no deployment needed.

For anyone who wants to quickly test ideas, this dramatically lowers the barrier. Want to build a web tool, a data display page, or a game demo? Write, run, and preview everything in the cloud — the whole workflow is much lighter.

That said, it won't nail everything in one shot. Game art, page details, and interaction experience still require iterative refinement through repeated prompts. But across these tests, MonkeyCode's completion level is already good enough for daily tinkering with small projects.