Defi MCP Server: Install & Setup

Install Defi in Claude Code

Claude Code

claude mcp add defi -e POLYGON_RPC_URL=... -- uvx defi-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "defi": {
      "command": "uvx",
      "args": [
        "defi-mcp"
      ],
      "env": {
        "POLYGON_RPC_URL": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Defi MCP server do?

AI agent access to on-chain DeFi data on Polygon & Arbitrum: balances, positions, prices.

Is the Defi MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Defi run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Defi to Claude Code?

Run: claude mcp add defi -e POLYGON_RPC_URL=... -- uvx defi-mcp

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