postalref for Zed

com.postalref/postalref

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

client:Zed transport:streamable-http tools:8

Install postalref in Zed

~/.config/zed/settings.json · windows: %APPDATA%\Zed\settings.json

{
  "context_servers": {
    "postalref": {
      "url": "https://postalref.com/mcp"
    }
  }
}

Merge this into your existing settings object — do not replace the file. Zed docs