postalref for Gemini CLI

com.postalref/postalref

USPS package barcodes, service type codes and mailing terms, each cited to its USPS source.

client:Gemini CLI transport:streamable-http tools:8

Install postalref in Gemini CLI

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

{
  "mcpServers": {
    "postalref": {
      "httpUrl": "https://postalref.com/mcp"
    }
  }
}

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