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lyra-web3-playground

MCP.Pizza Chef: nirholas

Lyra Web3 Playground is a local web-based environment where you can learn blockchain development by writing Solidity smart contracts, compiling them, and deploying to multiple blockchains like Ethereum and Polygon. It includes interactive tutorials, AI assistance, templates for tokens and NFTs, and accessibility features. You run it on your computer using Node.js, making it a powerful tool for beginners and developers to practice and build Web3 projects without needing external accounts or wallets.

Coding
Other

Use This MCP server To

Learn Solidity with step-by-step interactive tutorials Write, compile, and deploy smart contracts locally Deploy smart contracts to Ethereum and other blockchains Use AI to get coding help and security suggestions Build dApps with templates for tokens, NFTs, and DeFi Practice blockchain development without spending real gas Follow learning paths from beginner to advanced levels

README

Lyra Web3 Playground

✨ Built by nich | GitHub | X/Twitter

[![Repository](https://img.shields.io/badge/source-github-blue)](https://github.com/nirholas/lyra-web3-playground) [![TypeScript](https://img.shields.io/badge/TypeScript-5.0-blue)](https://www.typescriptlang.org/) [![React](https://img.shields.io/badge/React-18-61dafb)](https://react.dev/) [![Accessibility](https://img.shields.io/badge/a11y-WCAG%202.1%20AAA-purple)](docs/ACCESSIBILITY.md) [![i18n](https://img.shields.io/badge/i18n-10%20languages-orange)](docs/ARCHITECTURE.md) [![Author](https://img.shields.io/badge/Author-nich-ff69b4)](https://x.com/nichxbt)

A comprehensive open-source Web3 learning platform. Professional development environments, AI-assisted tools, security testing, and collaborative features — all in your browser.

Get the source on GitHub

Hosting note: the hosted demo at lyra.works is currently offline while hosting is being migrated. Clone the repo and run npm install && npm run dev to use every environment below at http://localhost:3000.

🛠️ Development Environments

Professional IDEs

Tool Description Link
Web Sandbox Full-featured web IDE with React, Vue, Python, live preview, Vim mode /ide?type=web
Solidity IDE Smart contract IDE with multi-version compiler (0.6.x - 0.8.24) /ide?type=solidity
Full-Stack Playground Build complete dApps with contract + frontend + live preview /fullstack-demo
Interactive Sandbox IDE with AI assistant, templates, and testnet deployment /sandbox

Innovation Lab (Experimental)

Open http://localhost:3000/innovation or enable "Innovation Mode" in the sandbox:

Feature Capability
AI Code Whisperer Real-time vulnerability detection, voice control, auto-fix suggestions
Contract Time Machine Version history, branching, state simulation
Security Testing Lab Test contracts against reentrancy, flash loans, overflow attacks
Collaborative Arena Code with AI teammates, participate in challenges
Neural Gas Oracle ML-powered gas prediction and optimization
Cross-Chain Deployer Deploy to 8+ chains with automated bridge setup

lyra-web3-playground FAQ

Can I use this to learn and practice Solidity smart contract coding?
Yes — Lyra Web3 Playground offers interactive tutorials and a Solidity IDE to write, compile, and deploy smart contracts locally without needing a wallet.
Can I deploy smart contracts to multiple blockchains using this?
Yes — it supports deploying to over 8 chains including Ethereum, Polygon, Base, Arbitrum, and Solana.
Do I need an API key or account to use Lyra Web3 Playground?
No — you can run it locally after installing Node.js and dependencies; no external keys or accounts are required.
Is this easy to set up for a non-developer?
No — it requires developer-level setup including installing Node.js and running commands to start the server.
Which apps or clients does this work with?
It is a standalone web-based IDE and playground you run locally in your browser; it does not plug into other apps directly.
Does it have accessibility features?
Yes — it supports screen readers, keyboard navigation, color blind modes, and other accessibility options.
Can I use AI assistance within the playground?
Yes — it includes AI tools for code suggestions, vulnerability detection, and contract explanations.