ZetaChain MCP Server

A Model Context Protocol (MCP) server built in TypeScript that enables LLM agents to access ZetaChain blockchain data using a public RPC endpoint. This server exposes core EVM-compatible methods and analysis prompts for ZetaChain, making it easy for LLMs to interact with ZetaChain wallets and contracts.

📦 Installation

Install globally with your favorite package manager:

# With npm
npm install -g zetachain-mcp-server

# With yarn
yarn global add zetachain-mcp-server

# With pnpm
pnpm add -g zetachain-mcp-server

# With bun
bun add -g zetachain-mcp-server

🚀 Quick Start

For Cursor IDE

After installing globally with npm install -g zetachain-mcp-server, you can use the CLI command directly in your Cursor mcp.json configuration:

{
  "mcpServers": {
    "zetachain-mcp": {
      "command": "zetachain-mcp-server"
    }
  }
}

No API keys or environment variables are required. The server uses ZetaChain's public RPC endpoint by default.

🧑‍💻 Using with Claude Desktop

Important: Claude Desktop cannot use globally installed npm packages. You must install the package locally and provide the full path to the executable.

Installation

1. Clone or download this repository to your local machine
2. Navigate to the project directory and install dependencies:

   cd zetachain-mcp
   npm install
   npm run build

Configuration

1. Open the Claude Desktop app

2. Go to Claude > Settings > Developer

3. Edit the claude_desktop_config.json file and add the following configuration:

   {
     "mcpServers": {
       "zetachain-mcp": {
         "command": "node",
         "args": [
           "/absolute/path/to/zetachain-mcp/build/index.js"
         ]
       }
     }
   }

   Replace /absolute/path/to/zetachain-mcp/ with the actual absolute path to your project directory.

   Example paths:

   • macOS/Linux: /Users/yourname/projects/zetachain-mcp/build/index.js
   • Windows: C:\\Users\\yourname\\projects\\zetachain-mcp\\build\\index.js

4. Restart Claude Desktop for the changes to take effect

5. Ask Claude Desktop to perform ZetaChain tasks (see examples below)

📝 Example Agent Interactions

• Check a wallet balance:

  Give the balance of the 0x1234...abcd address on ZetaChain

• Analyze a contract:

  Analyze 0x5678...efgh on ZetaChain

• Get current gas prices:

  Analyze the current gas prices on ZetaChain

📦 Project Structure

├── chains.ts           # ZetaChain configuration and public RPC endpoint
├── clients.ts          # Viem public client creator for RPC connections
├── index.ts            # Main entry point that sets up the MCP server
├── package.json        # Package configuration
├── prompts.ts          # Defines LLM prompts for blockchain analysis tasks
├── resources.ts        # External references and helpers
├── tools.ts            # Implements the EVM RPC methods as MCP tools
└── tsconfig.json       # TypeScript configuration

⚡ Features

• MCP-Compatible: Built using the Model Context Protocol SDK for LLM agent integration
• ZetaChain Support: Works exclusively with ZetaChain Mainnet
• Core EVM Methods: Includes eth_getBalance, eth_getCode, and eth_gasPrice for ZetaChain
• LLM Prompts: Pre-built prompts for wallet analysis, contract inspection, and gas price evaluation
• No API Key Required: Uses ZetaChain's public RPC endpoint—no .env or API key setup needed

🛠️ MCP Tools

1. eth_getBalance

   • Description: Get the ZETA token balance of an address
   • Parameters:
     • address: ZetaChain address to check
     • chain: Chain to query (must be zetachain)
   • Returns:
     • Address, chain name, balance in wei, formatted balance with symbol

2. eth_getCode

   • Description: Detect whether an address is a contract or wallet
   • Parameters:
     • address: ZetaChain address to check
     • chain: Chain to query (must be zetachain)
   • Returns:
     • Address information, contract status, bytecode size

3. eth_gasPrice

   • Description: Get the current gas price on ZetaChain
   • Parameters:
     • chain: Chain to query (must be zetachain)
   • Returns:
     • Chain name, gas price in wei and Gwei, timestamp

💡 MCP Prompts

1. check-wallet

   • Description: Guide for analyzing a wallet's balance and context
   • Parameters:
     • address: ZetaChain address to check
     • chain: Chain to query (must be zetachain)
   • Functionality: Guides the LLM to get the balance and check if it's a contract, then provide analysis

2. check-contract

   • Description: Prompt contract code introspection and analysis
   • Parameters:
     • address: ZetaChain address to check
     • chain: Chain to query (must be zetachain)
   • Functionality: Guides the LLM to verify code presence, analyze contract size and balance

3. gas-analysis

   • Description: Analyze gas price trends and evaluate timing
   • Parameters:
     • chain: Chain to query (must be zetachain)
   • Functionality: Guides the LLM to analyze current gas prices and provide recommendations

📚 MCP Resources

The server provides access to these resources:

• evm://docs/gas-reference - Gas price reference data for ZetaChain
• evm://docs/block-explorers - Block explorer URL for ZetaChain
• evm://docs/supported-chains - Supported chains (ZetaChain)