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mcp/harbor
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Postio — UK Address, Postcode, Email & Phone Validation MCP

v0.1.4

uk.co.postio/postcode-address-validation

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

transport:stdio runtime:npm
View source Website

Target client

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add postcode-address-validation -e POSTIO_API_KEY=<POSTIO_API_KEY> -e POSTIO_BASE_URL=<POSTIO_BASE_URL> -- npx -y @postio/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.