Wren Pre-sign Check for Gemini CLI

io.github.claudeisgod/wren-presign-check

Check a tx, EIP-712 payload, text or Base token before your agent signs. Paid per call over x402.

client:Gemini CLI transport:streamable-http tools:4

Install Wren Pre-sign Check in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "wren-presign-check": {
      "httpUrl": "https://wren-presign-check.wrenonbase.workers.dev/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs