Skip to content
mcp/harbor
VS Code

usps mcp for VS Code

io.github.mrfentmen/usps-mcp

USPS shipping, tracking, address validation, and label creation.

client:VS Code transport:stdio runtime:npm

Install usps mcp in VS Code

.vscode/mcp.json 

{
  "inputs": [
    {
      "type": "promptString",
      "id": "usps-api-key",
      "description": "USPS_API_KEY",
      "password": true
    },
    {
      "type": "promptString",
      "id": "usps-username",
      "description": "USPS_USERNAME",
      "password": true
    },
    {
      "type": "promptString",
      "id": "usps-password",
      "description": "USPS_PASSWORD",
      "password": true
    },
    {
      "type": "promptString",
      "id": "usps-api-url",
      "description": "USPS_API_URL",
      "password": true
    }
  ],
  "servers": {
    "usps-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "usps-mcp"
      ],
      "env": {
        "USPS_API_KEY": "${input:usps-api-key}",
        "USPS_USERNAME": "${input:usps-username}",
        "USPS_PASSWORD": "${input:usps-password}",
        "USPS_API_URL": "${input:usps-api-url}"
      }
    }
  }
}

VS Code prompts for each input the first time the server starts, so no secret is written to the file. VS Code docs

usps mcp in other clients

usps mcp MCP server