Guardrail MCP for Cursor

io.github.kadopi/guardrail-mcp

Deterministic preflight checks for credentials, fund transfers, writes, and prompt overrides.

client:Cursor transport:streamable-http tools:2

Install Guardrail MCP in Cursor

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

{
  "mcpServers": {
    "guardrail-mcp": {
      "url": "https://guardrail-mcp.kadopi.workers.dev/mcp"
    }
  }
}

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