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mcp/harbor
Cursor

arbitrum transaction preflight for Cursor

io.github.naur9n/arbitrum-transaction-preflight

Paid Arbitrum transaction simulation and risk scoring for wallets and AI agents.

client:Cursor transport:stdio runtime:npm

Install arbitrum transaction preflight in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "arbitrum-transaction-preflight": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "arbitrum-mpp-transaction-preflight"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "<CLIENT_PRIVATE_KEY>",
        "SERVER_URL": "<SERVER_URL>",
        "CHAIN_ID": "<CHAIN_ID>"
      }
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

arbitrum transaction preflight in other clients

arbitrum transaction preflight MCP server