MCP Ethers Server
⚡ Claude Code Setup:
claude mcp add ethers-wallet -- node /path/to/ethers-server/build/src/index.js
A complete ethers.js v6 wrapper for Claude with 40+ tools for Ethereum blockchain interactions. Works with 20+ EVM networks including Ethereum, Polygon, Arbitrum, Base, and more.
Tool Categories
🔗 Core Ethereum
Network info • Block/transaction data • Wallet operations • Gas estimation • ENS resolution • Message signing • Unit conversion
🪙 Token Standards
ERC20: Token info, balances, transfers, approvals
ERC721: NFT info, ownership, transfers, metadata
ERC1155: Multi-token balances, transfers, batch operations
📝 Transaction Management
Transaction preparation • ERC20/721/1155 transaction prep • Secure transaction broadcasting • Gas optimization
🔧 Contract Interaction
Smart contract calls • Contract code inspection • Custom ABI support
Quick Example
# Get Vitalik's ETH balance
"getWalletBalance": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"provider": "mainnet"
}
# Get USDC token info
"erc20GetTokenInfo": {
"tokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"provider": "mainnet"
}
Installation
git clone https://github.com/yourusername/ethers-server.git
cd ethers-server
npm install
npm run build
Environment Variables
Create .env file:
ALCHEMY_API_KEY=your_alchemy_key
INFURA_API_KEY=your_infura_key
DEFAULT_NETWORK=mainnet
Advanced Setup
Local Project
claude mcp add --scope local ethers-wallet --env ALCHEMY_API_KEY=your_key -- node /path/to/build/src/index.js
Shared Team Config
claude mcp add --scope project ethers-wallet -- node /path/to/build/src/index.js
Security
🔐 Secure by Design: Uses prepare → sign → send workflow. Private keys never stored on server. External signing supported (hardware wallets, offline signing).
⚠️ API Keys: Protect your .env file. Never expose Alchemy/Infura keys.
Development
Built with ethers.js v6 for maximum compatibility and performance. Full TypeScript support with comprehensive error handling.
Testing: npm test (requires Hardhat local node)
Build: npm run build
Contributing
Contributions welcome! See our comprehensive test suite and follow existing code patterns.
License
MIT License - Dennison Bertram (dennison@tally.xyz)
🚀 Production Ready: Successfully validated with live Ethereum mainnet transactions. Complete MCP server with 40+ tools for all your Web3 needs.