Ethereum Tools for Claude MCP

A comprehensive toolkit for Ethereum blockchain analysis directly within Claude AI using Model Context Protocol (MCP).

Features

• Smart Contract Audit: Analyze contracts for security issues, verify source code, and detect token standards
• Wallet Analysis: Check ETH balances, token holdings, and transaction history
• Profitability Tracking: Calculate wallet profit/loss across tokens and trades
• Blockchain Data: Fetch and analyze on-chain data with simple commands
• Token Analysis: Get comprehensive token details, price history, and trading patterns

Installation

Prerequisites

• Node.js v16+
• Claude for Desktop
• Free API keys:
  • Etherscan - For contract verification and analysis
  • Moralis - For wallet profitability and token balances
  • Codex - For token price history and advanced analytics
  • (Optional) RPC provider like Infura or use free public endpoints

Setup Steps

1. Clone this repository:

   git clone https://github.com/giovannialbero1992/ethereum-tools-mcp
   cd ethereum-tools-mcp
   

2. Install dependencies:

   npm install
   

3. Create your configuration:

   • Copy mcp.json.example to mcp.json
   • Edit mcp.json to include your API keys and correct file paths

   {
     "mcpServers": {
       "ethereum-tools": {
         "command": "node",
         "args": ["YOUR_ABSOLUTE_PATH_TO/main.js"],
         "env": {
           "ETH_RPC_URL": "https://eth.llamarpc.com",
           "MORALIS_API_KEY": "your_moralis_api_key",
           "ETHERSCAN_API_KEY": "your_etherscan_api_key",
           "CODEX_API_KEY": "your_codex_api_key"
         }
       }
     }
   }

4. Configure Claude for Desktop:

   • On Windows: Create/edit %APPDATA%\Claude\claude_desktop_config.json
   • Copy the contents of your mcp.json file into this configuration

Available Tools

Contract Analysis

• auditContract(address: "0x..."): Perform security audit on a smart contract

Balance & Tokens

• getEthBalance(address: "0x..."): Get ETH balance
• getTransactionCount(address: "0x..."): Get transaction count (nonce)
• getTokensBalance(address: "0x...", chain: "eth", excludeSpam: true): Get all token balances

Profitability

• getWalletPnl(address: "0x...", chain: "eth"): Analyze wallet profit/loss

Token Analysis

• getTokenInfo(address: "0x...", networkId: 1): Get basic token information including name, symbol, and supply
• getTokenPriceHistory(address: "0x...", networkId: 1, days: 7, resolution: "1D"): Get historical price data
• analyzeToken(address: "0x...", networkId: 1, days: 30): Perform comprehensive token analysis including volatility and trading patterns

Utilities

• add(a: 1, b: 2): Simple utility function example

Troubleshooting

Common issues:

• Environment variables not found: Make sure your API keys are correctly set in mcp.json
• Provider errors: Check that your ETH_RPC_URL is valid and accessible
• Path errors: Ensure you're using full absolute paths with proper escaping in Windows (\\)
• Codex API issues: Verify your Codex API key is valid and has permission to access token data

Development

To add new tools:

1. Create or modify files in the tools/ directory
2. Register your tools in main.js
3. Restart Claude for Desktop to see changes

License

This project is licensed under the MIT License.

Acknowledgements

• Model Context Protocol (MCP) by Anthropic
• Web3.js
• Moralis
• Etherscan
• Codex