Arbitrum MCP

What is Arbitrum MCP?

Arbitrum MCP is a Model Context Protocol server that provides AI access to the Arbitrum ecosystem. As the leading Ethereum Layer 2 by TVL, Arbitrum hosts a vibrant DeFi ecosystem with unique protocols like GMX, Camelot, and Radiant Capital.

Arbitrum Architecture

Arbitrum uses optimistic rollup technology to batch transactions on Ethereum, providing lower fees while inheriting Ethereum's security. Arbitrum MCP understands this architecture, handling L2-specific transaction types, bridge messages, and batch data.

Key Features

• Dual Chain Support — Query both Arbitrum One (general purpose) and Arbitrum Nova (gaming/social)
• Bridge Monitoring — Track deposits and withdrawals through the Arbitrum bridge with challenge period estimates
• Rollup Data — Access batch submission data and fraud proof status
• DeFi Analytics — Native support for Arbitrum's top DeFi protocols

Configuration

{
  "mcpServers": {
    "arbitrum": {
      "command": "npx",
      "args": ["arbitrum-mcp"],
      "env": {
        "ARBITRUM_RPC_URL": "https://arb1.arbitrum.io/rpc"
      }
    }
  }
}

Use Cases

Arbitrum MCP excels at DeFi research on the Arbitrum ecosystem, cross-layer analytics comparing L1 and L2 activity, bridge monitoring for large transfers, and gas optimization for Arbitrum transactions. The server's understanding of Arbitrum's unique features like retryable tickets and custom gas pricing provides insights unavailable from generic EVM tools.