MCP Hub › Productivity › Postio — UK Address, Postcode, Email & Phone Validation

Postio — UK Address, Postcode, Email & Phone Validation MCP server

by postio-uk · uk.co.postio/postcode-address-validation

Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR.

📅 Productivitynpmv0.1.5
Open in MCP HubGitHub repository ↗Website ↗

How to install Postio — UK Address, Postcode, Email & Phone Validation

npm

claude mcp add -e POSTIO_API_KEY=<your-postio-api-key> postcode-address-validation -- npx -y @postio/[email protected]

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "postcode-address-validation": {
      "command": "npx",
      "args": [
        "-y",
        "@postio/[email protected]"
      ],
      "env": {
        "POSTIO_API_KEY": "<your-postio-api-key>"
      }
    }
  }
}

Environment variables:
POSTIO_API_KEY (required) – Postio API key (pk_…). Free key, first 100 lookups on us, no card: https://postio.co.uk/signup
POSTIO_BASE_URL – Override the API base URL. Defaults to https://api.postio.co.uk/v1 (include /v1). Only needed for staging.

Replace placeholders in <angle brackets> with your own values. Review what a server can access before you enable it.

Details

Version
0.1.5
Published
2026-10-23
Updated
2026-10-23
Namespace
uk.co.postio
Source
postio-uk/postio-integrations

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