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USPS shipping, tracking, address validation, and label creation.
npx @getmcp/cli add io.github.mrfentmen/usps-mcpRequires Node.js 18+. Community-contributed server. Review source before installing.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io.github.mrfentmen/usps-mcp": {
"command": "npx",
"args": [
"-y",
"usps-mcp"
],
"env": {
"USPS_API_KEY": "",
"USPS_USERNAME": "",
"USPS_PASSWORD": "",
"USPS_API_URL": ""
}
}
}
}