SendCheck — EVM address verification (x402) for Gemini CLI

org.pennyforge.api/sendcheck

Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.

client:Gemini CLI transport:streamable-http tools:3

Install SendCheck — EVM address verification (x402) in Gemini CLI

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

{
  "mcpServers": {
    "sendcheck": {
      "httpUrl": "https://api.pennyforge.org/mcp"
    }
  }
}

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