DEV Community: sebattfg

The Best Free and Unlimited AI for Roblox Studio (No Subscription, No API Key)

sebattfg — Mon, 29 Jun 2026 11:05:28 +0000

If you're looking for free AI tools to help you script in Roblox Studio, you've probably noticed most "AI for Roblox" tools push you toward a paid subscription or require you to bring your own API key. There's a simpler path: use the AI chat interfaces you already have access to, connected directly to Roblox Studio.

That's what ZeroScript does. It's a free, open-source browser extension that connects multiple AI chat interfaces to Roblox Studio via MCP, no subscription and no API key needed. Here's a breakdown of which free AI providers work well for Roblox scripting, and how to use each one.

DeepSeek

DeepSeek is a solid default for Lua/Luau scripting. It handles standard Roblox patterns (RemoteEvents, DataStores, module scripts) reliably and is fast enough for quick iteration. Good first choice if you're not sure where to start.

Gemini

Gemini is the fastest of the bunch, good for quick iterations. The tradeoff is it's less precise than the others and can be a bit unstable, so double check the output before trusting it on anything critical.

GLM

GLM is a capable general coding model that performs well on Roblox-specific syntax. Worth trying as an alternative if you want to compare outputs against DeepSeek on the same prompt. Note that it's currently in high demand, so it can be unavailable at times.

Kimi

Kimi is very smart, but slower, and it has a tendency to get stuck in tool call loops.

Qwen

Qwen is another reliable option for everyday scripting tasks. Like GLM, it's worth keeping in rotation to compare results, since different models can produce noticeably different approaches to the same Roblox problem.

Arena

Arena lets you compare multiple models on the same prompt side by side, useful when you want to see which model handles a specific Roblox pattern best before committing to one.

How to connect any of these to Roblox Studio

All six providers above connect to Roblox Studio the same way with ZeroScript, a free browser extension. Here's the full setup:

📺 Prefer video? Full walkthrough: setup tutorial on YouTube

1. Download and install the extension

Grab the latest zip from the GitHub Releases page and extract it. It contains the Bridge and the extension folder.

To load the extension:

Go to edge://extensions (Edge) or chrome://extensions (Chrome)
Enable Developer mode (top right toggle)
Click Load unpacked
Select the zeroscript-extension folder from the extracted zip

2. Enable MCP in Roblox Studio

Open Studio, load a Place, then (first time only):

Click Assistant AI in the top bar
Click ... (top right of the Assistant panel)
Click Manage MCP Servers
Click Enable Studio as MCP Server

3. Run the Bridge

Double-click start.bat inside the extracted folder. A small window opens, that means the Bridge is running.

4. Start a session

Go to chat.deepseek.com, gemini.google.com, kimi.com, chat.z.ai, chat.qwen.ai, or arena.ai and open a new chat. The ZeroScript bar appears above the input box. Click Start session, then type what you want to build.

On Arena, keep the mode dropdown on Direct, ZeroScript blocks Start in Battle / Side-by-Side / Agent modes.

Need help?

💬 Stuck or got feedback: Discord community
⭐ Source code: GitHub repo

It's free and open-source, no API key, no subscription.

Free Lemonade.gg Alternative for Roblox Studio: ZeroScript

sebattfg — Sun, 14 Jun 2026 11:28:47 +0000

If you've hit Lemonade.gg's 4-prompt free tier and don't want to pay $20/month, here's what I built instead.

ZeroScript is a free, open-source browser extension that connects DeepSeek, Gemini, GLM, Kimi, Qwen or Arena directly to Roblox Studio via MCP. No subscription, no credit limits, no paywall. Ever.

Why look for a Lemonade.gg alternative?

Lemonade.gg is a solid tool but the pricing is brutal for hobbyists:

4 free prompts total
$20/month for 100 prompts
No access to your own AI models

If you're building a game on the side, you hit the wall fast.

What ZeroScript does differently

ZeroScript uses Roblox Studio's built-in MCP server to give the AI direct access to your project. It runs on six free models, including DeepSeek, GLM 5.2, Kimi K2.6, Gemini Flash, Qwen and Arena, so there's no credit system to worry about.

	ZeroScript	Lemonade.gg
Price	Free forever	$20/month
Free prompts	Unlimited	Only 4
Runs Luau live	✓	✕
Generates meshes	✓	✕
Open source	✓	✕

What the AI can do in Studio

Read and edit your Luau scripts in place
Run code live to test and debug
Inspect your full game tree
Generate procedural meshes and materials
Browse and insert from the Creator Store

Setup in 4 steps

Download the zip from GitHub and load the extension in Chrome or Edge
Open Roblox Studio, click Assistant AI, enable MCP Server
Double-click start.bat, keep the window open
Open your preferred model's chat (DeepSeek, Gemini, GLM, Kimi, Qwen, or Arena) and click Start Session on the ZeroScript panel

That's it.

Get it

GitHub: github.com/sebattfg/ZeroScript-Free
Tutorial: youtu.be/QaViHSqzy5Q
Discord: discord.gg/9aNyZsMWcb
Website: zeroscript-five.vercel.app

Free, unlimited, open source. No Lemonade subscription needed.

How to Use DeepSeek (and Other Free AI) in Roblox Studio for Free

sebattfg — Sat, 13 Jun 2026 09:47:39 +0000

If you've been using Lemonade.gg, you already know the pain: 4 free prompts, then $20 for 100 more. For a Roblox developer who codes every day, that adds up fast.

There's a better way. With ZeroScript Free, you can connect DeepSeek and other free AI models directly into Roblox Studio with no subscription, no prompt limits, and no paywall.

ZeroScript Free is an open-source Chrome/Edge extension that bridges your browser's AI chat interface directly to Roblox Studio via MCP (Model Context Protocol).

Instead of copy-pasting code between a chat window and Studio, ZeroScript lets the AI read your scripts, write changes, and interact with your project: all in real time.

Free and open source
Works with DeepSeek (free), and compatible with other AI models
No API key required: uses the free web interface
Unlimited prompts

GitHub: github.com/sebattfg/ZeroScript-Free

Why DeepSeek?

DeepSeek is one of the strongest free AI models available right now. The web version at chat.deepseek.com is completely free with no rate limits that would block normal development use.

ZeroScript works by injecting into the DeepSeek chat interface and routing messages through a local WebSocket bridge into Roblox Studio. You type in DeepSeek, your game changes in Studio.

Other free AI models are on the roadmap. Gemini and ChatGPT are already partially supported (unstable for now) and the architecture is model-agnostic by design.

How it Works

The setup has three parts:

The Chrome/Edge extension: injects into DeepSeek's chat interface and intercepts messages
The Bridge (start.bat): a local server running on your machine that handles the WebSocket connection
Roblox Studio MCP: the built-in MCP server in Roblox Studio that receives commands from the bridge

When you send a message in DeepSeek, it flows through the bridge into Studio. The AI can read your scripts, create objects, and make changes without you ever leaving the chat.

Setup Guide

Step 1: Install the extension

Download the extension from the GitHub repo. In Chrome or Edge, go to chrome://extensions, enable Developer Mode, and click "Load unpacked". Select the extension folder.

Step 2: Enable MCP in Roblox Studio

Open Roblox Studio, click the Assistant AI button, open its settings, and enable "Enable MCP Server". Studio will start listening for connections on a local port.

Step 3: Run the Bridge

Double-click start.bat from the downloaded files. A terminal window will open: keep it running.

Step 4: Start a session

Go to chat.deepseek.com. You'll see the ZeroScript panel. Click "Start Session" and you're connected.

That's it. Type in DeepSeek, watch Studio respond.

ZeroScript vs Lemonade.gg

	ZeroScript Free	Lemonade.gg
Price	Free, unlimited	$20 / 100 prompts
Open source	Yes	No
AI model	DeepSeek (free web)	Proprietary
Setup time	~2-3 minutes	~8+ minutes
Prompt limit	None	4 free, then paid

What Can You Do With It?

Once connected, you can ask the AI to:

Generate full Luau scripts and insert them directly into your project
Debug errors from the output log
Create and modify instances in the Explorer
Refactor existing scripts
Build systems (combat, inventory, UI, datastores) from a description

The AI has full context of your open Studio session: it reads your script tree before touching anything.

Roadmap

ZeroScript Free is actively developed. Planned features include:

Gemini and ChatGPT support (use any free AI)
Improved session stability
Better context injection for large projects

Get Started

Everything is free and open source.

GitHub: github.com/sebattfg/ZeroScript-Free
Video tutorial: youtu.be/QaViHSqzy5Q
Discord: discord.gg/9aNyZsMWcb for support and updates
Website: zeroscript-five.vercel.app

If this saves you money or time, drop a star on the repo. It helps more developers find it.