Postio — UK Address, Postcode, Email & Phone Validation

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "uk.co.postio/postcode-address-validation",
  "description": "Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR.",
  "title": "Postio — UK Address, Postcode, Email & Phone Validation",
  "repository": {
    "url": "https://github.com/postio-uk/postio-integrations",
    "source": "github",
    "id": "1226246873",
    "subfolder": "packages/mcp"
  },
  "version": "0.1.4",
  "websiteUrl": "https://postio.co.uk/integrations/mcp",
  "icons": [
    {
      "src": "https://postio.co.uk/assets/logo-mark-512.png",
      "mimeType": "image/png",
      "sizes": [
        "512x512"
      ]
    }
  ],
  "packages": [
    {
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "identifier": "@postio/mcp",
      "version": "0.1.4",
      "runtimeHint": "npx",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Postio API key (pk_…). Free key, first 100 lookups on us, no card: https://postio.co.uk/signup",
          "isRequired": true,
          "format": "string",
          "isSecret": true,
          "name": "POSTIO_API_KEY"
        },
        {
          "description": "Override the API base URL. Defaults to https://api.postio.co.uk. Only needed for staging.",
          "format": "string",
          "name": "POSTIO_BASE_URL"
        }
      ]
    }
  ]
}