Web3CLI: Revolutionizing Smart Contract Development with AI

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Web3CLI: Revolutionizing Smart Contract Development with AI


Smart contract development has always been challenging - immutable code handling financial assets demands perfect security, yet development tools often leave engineers without adequate support. Enter Web3CLI, an AI-powered tool that transforms blockchain development through natural language contract generation and in-depth contract analysis.

The Problem: High Stakes, Complex Code


Blockchain development presents unique challenges:

1. Security-Critical Code - Over $3.8 billion lost to DeFi hacks in 2022 alone, with security audits costing $15,000-$80,000
2. Complex Execution Models - Gas optimization, state transitions, and transaction ordering effects create a steep learning curve
3. Documentation Gaps - Users interact with contracts without understanding risks, developers build on existing contracts without full comprehension

Web3CLI: The AI-Powered Solution


Web3CLI solves these challenges through:

• Natural Language to Solidity - Turn plain English requirements into secure smart contract implementations
• Contract Explainability - Get plain-English summaries of complex contracts
• Security-First Approach - Built-in guardrails prevent common vulnerabilities
• Multi-Agent System - Specialized AI agents collaborate to enhance quality
• Vector Database - Local storage of blockchain documentation and security patterns

Getting Started

Installation


# Using npm
npm install -g @web3ai/cli

# Using pnpm
pnpm add -g @web3ai/cli

# From source
git clone

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cd web3cli
pnpm install
pnpm build
npm link
Configuration


Create a web3cli.toml file in your project directory:


#:schema ./schema.json
default_model = "gpt-4o-mini" # or another model
openai_api_key = "your-openai-api-key"
etherscan_api_key = "your-etherscan-api-key" # optional

Or use environment variables:


export OPENAI_API_KEY="your-openai-api-key"
export ETHERSCAN_API_KEY="your-etherscan-api-key"
Practical Examples

Generate a Secure Smart Contract


# Generate an ERC-20 token with allowlist
web3cli generate "Create an ERC-20 token with minting restricted to addresses in an allowlist" --output Token.sol

# Use agent mode for enhanced security
web3cli generate "Create an NFT collection with royalties" --agent --output NFTCollection.sol

# Generate with Hardhat tests
web3cli generate "Create a vesting contract" --hardhat --output VestingContract.sol
Analyze Existing Contracts


# Analyze by address (e.g., USDT on Mainnet)
web3cli contract 0xdac17f958d2ee523a2206206994597c13d831ec7 --network mainnet

# Analyze a Solidity file
web3cli contract --file MyContract.sol

# Audit a contract
web3cli contract:audit --file MyContract.sol
General Blockchain Questions


# Ask general questions
web3cli "What is the difference between ERC-20 and ERC-721?"

# Enable web search for up-to-date information
web3cli "What is the current gas cost for token transfers?" --search
The Secret Sauce: Multi-Agent System


What sets Web3CLI apart is its hierarchical multi-agent approach:

1. Coordinator Agent plans execution and integrates results
2. Web Search Agent gathers up-to-date information
3. Vector Store Agent retrieves security patterns
4. Code Writer Agent generates initial Solidity code
5. Security Audit Agent identifies vulnerabilities
6. Linting Agent improves code quality and readability
7. Functionality Checker verifies contract behavior

This collaborative approach delivers higher quality, more secure code than single-model solutions.

Enhanced Knowledge with Vector Database


Web3CLI includes a local vector database for storing Solidity documentation and security patterns:


# Add documentation
web3cli setup --max-pages 50

# Search the database
web3cli vdb-search "ERC721 royalties implementation" --name solidity

# Use with contract generation
web3cli generate "Create an NFT with royalties" --read-docs solidity
Supported Models and Providers


Web3CLI works with multiple AI providers:

• OpenAI: GPT-4o, GPT-4o-mini, GPT-3.5-turbo
• Anthropic: Claude 3.7/3.5 Sonnet, Claude 3.5 Haiku
• Google: Gemini 2.5 Flash/Pro, Gemini 2.0
• Groq: Llama 3.3/3.1, Mixtral 8x7B
• Mistral: Large, Medium, Small
• GitHub Copilot: Various backend options
• Ollama: Local models

Use Cases

• New Blockchain Projects: Generate secure foundation contracts
• Code Audit Preparation: Pre-audit analysis to identify issues
• Learning Tool: Understand standard patterns and best practices
• Documentation: Generate comprehensive project documentation
• Contract Analysis: Quickly understand existing contracts

Why CLI Over Web Interface?


The command-line interface provides key advantages:

1. Developer Workflow Integration: Seamlessly works alongside editors, version control, and testing
2. Scriptability: Easy integration with build systems and CI/CD pipelines
3. Low Overhead: Minimal resources required and wide OS compatibility
4. Focus on Core Functionality: Emphasis on robust features over visual polish

Try It Today


Web3CLI represents a significant advancement in AI-assisted blockchain development, bringing security, speed, and clarity to the complex world of smart contracts.

Get started by installing with npm install -g @web3ai/cli or check out the

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Whether you're building the next DeFi protocol or just learning Solidity, Web3CLI provides the tools you need to write better, more secure smart contracts.

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