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0xGval

ethereum-tools

by 0xGval
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JavaScript
Remote

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

  1. Clone this repository:

    git clone https://github.com/0xGval/evm-tools-mcp
cd evm-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",
        "RAPIDAPI_KEY": "your_rapidapi_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

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

License

This project is licensed under the MIT License.

Acknowledgements