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EVM MCP サーバー

EVM MCP Server connects AI assistants like Claude or Cursor to blockchain data across Ethereum and other EVM-compatible chains. This MCP server tool lets Claude check wallet balances, analyze contracts, and monitor gas prices through natural conversation, making crypto data accessible to AI agents.

フロントエンドフレームワーク/ライブラリ:
Viem
言語:
TypeScript
ビルドツール/開発サーバー:
モデルコンテキストプロトコル
サンプルアプリのプレビュー

概要

The Model Context Protocol (MCP) enables Large Language Models (LLMs) to interact with external tools — like HTTP APIs, files, or even blockchains — using a standardized message-based protocol. Think of it as a "function-calling" interface that agents like Claude or Cursor can plug into, turning a script or service into an AI-native extension.

In this guide, you'll learn how to build and deploy a MCP server that enables LLM agents to access blockchain data across multiple EVM-compatible networks. This powerful integration allows AI models like Claude to interact directly with blockchain data, opening up new possibilities for Web3 automation and analysis.

Tech Stack

Written tutorial of this project: Create an EVM MCP Server with Claude Desktop

はじめに

依存関係をインストールする


  1. Clone the repository
git clone https://github.com/quiknode-labs/qn-guide-examples.git
cd qn-guide-examples/AI/evm-mcp-server

  1. 依存関係をインストールする
npm install

  1. Build the project

Compile the TypeScript code:

npm run build

Configure Claude Desktop

Environment variables are used to configure the server. These variables will be defined in Claude Desktop's configuration file, claude_desktop_config.json.

To configure, open the Claude デスクトップ app, go to クロード > 設定 > Developer. Then, modify the claude_desktop_config.json file with the following content: (if you already have other configurations, add the new configuration under the mcpServers object)

{
"mcpServers": {
"evm": {
"command": "node",
"args": [
"/absolute-path-to/evm-mcp-server/build/index.js"
],
"env": {
"QN_ENDPOINT_NAME": "your-quicknode-endpoint-name",
"QN_TOKEN_ID": "your-quicknode-token-id"
}
}
}
}

  • 置換 your-quicknode-endpoint-name with the name of your Quicknode endpoint.
  • 置換 your-quicknode-token-id with the token ID of your Quicknode endpoint.
  • 置換 /absolute-path-to with the absolute path to the evm-mcp-server directory.

Test the MCP Server

Restart Claude Desktop and test the server by asking Claude Desktop to perform a task that requires the EVM MCP Server. For example, ask Claude Desktop to get balance of an address on any supported chain.

Example Agent Interactions


  1. Check a wallet balance:
Give the balance of the 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 address on Ethereum

  1. Analyze a contract:
Analyze 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Ethereum

  1. Get current gas prices:
Analyze the current gas prices on Ethereum, is it a good time to use the chain?
投稿とフィードバック
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投稿するには、以下の手順に従ってください:
  1. リポジトリをフォークする
  2. フィーチャーブランチを作成する:
    git checkout -b feature/amazing-feature
  3. 変更内容をコミットします:
    git commit -m "素晴らしい機能を追加"
  4. ブランチをプッシュしてください:
    git push origin feature/amazing-feature
  5. プルリクエストを作成してください。