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Base Network MCP Server

by happybigmtn
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Base Network MCP Server

A Model Context Protocol (MCP) server for accessing Base Network blockchain data. Provides tools for querying blocks, transactions, balances, and smart contracts on Base mainnet and testnet.

Features

  • 9 blockchain tools (7 work without API key)

  • Base mainnet and Sepolia testnet support

  • Real-time blockchain data access

  • Docker support

  • Multiple transport options (stdio, HTTP)

Related MCP server: BaseQL MCP Server

Quick Start

Install and Build

git clone https://github.com/u-Operating-System/basescan-mcp-server.git
cd basescan-mcp-server
npm install
npm run build

Run the Server

# For Claude Desktop (recommended)
npm start

# For HTTP server
MCP_TRANSPORT_TYPE=http npm start

Optional: BaseScan API Key

Get enhanced features by adding a free BaseScan API key:

  1. Visit https://basescan.org/apis

  2. Create account and get API key

  3. Add to environment: BASESCAN_API_KEY=your-key

Claude Desktop Setup

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "base-network": {
      "command": "node",
      "args": ["/path/to/basescan-mcp-server/build/index.js"],
      "env": {
        "BASESCAN_API_KEY": "your-key-here"
      }
    }
  }
}

Docker

# Basic setup
docker run -p 3010:3010 basescan-mcp-server

# With API key
docker run -p 3010:3010 -e BASESCAN_API_KEY=your-key basescan-mcp-server

Available Tools

Tool

Description

Requires API Key

get_latest_block

Latest block information

No

get_block

Block by number/hash

No

get_transaction

Transaction details

No

get_balance

ETH balance lookup

No

get_gas_price

Current gas prices

No

check_contract

Smart contract detection

No

get_network_stats

Network statistics

No

get_account_transactions

Account transaction history

Yes

get_account_tokens

Token transfer history

Yes

Configuration

Configure via environment variables:

NODE_ENV=development              # development|production
MCP_TRANSPORT_TYPE=stdio          # stdio|http
MCP_HTTP_PORT=3010               # HTTP port
BASESCAN_API_KEY=your-key        # BaseScan API key (optional)
MCP_LOG_LEVEL=info               # debug|info|warning|error

Security

  • Store API keys in environment variables

  • Never commit .env files with real values

  • Use HTTPS in production

Networks

  • Base Mainnet: Chain ID 8453

  • Base Sepolia: Chain ID 84532

Development

npm run dev            # Development with hot reload
npm test               # Run tests
npm run lint           # Code linting
npm run format         # Code formatting

License

MIT

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityInactive
ResponsivenessNo issues

Resources

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