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
Twitter Search: Find tweets by keywords, usernames, dates, or complex search criteria with natural language processing

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
RapidAPI - For Twitter search functionality
(Optional) RPC provider like Infura or use free public endpoints

Setup Steps

Clone this repository: git clone https://github.com/0xGval/evm-tools-mcp cd evm-tools-mcp
Install dependencies: npm install
Create your configuration:
Copy mcp.json.example to mcp.json
Edit mcp.json to include your API keys and correct file paths

json { "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", "RAPIDAPI_KEY": "your_rapidapi_key" } } } }

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

Twitter Search

searchTwitter(query: "ethereum", section: "top", limit: 5): Intelligent Twitter search with natural language processing
Automatically formats natural language queries into proper Twitter syntax
Understands user queries like "Find tweets by _gval about hyperliquid"
Supports advanced Twitter search operators: from:username, has:links, etc.
Optional parameters: min_likes, min_retweets, min_replies, start_date, end_date, language
twitterSearchHelp(topic: "general"): Get help with Twitter search syntax
Available topics: "general", "user", "date"
Provides examples and explanations of Twitter search operators

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 - Twitter search errors: Make sure your RapidAPI key has access to the Twitter154 API

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