PostCode Check for Claude.ai

dev.workers.mike-tusa.postcodecheck/postcodecheck

Validate and normalize postal codes offline for 252 countries and territories. Format check only.

client:Claude.ai transport:streamable-http tools:2

Install PostCode Check in Claude.ai

Settings → Connectors → Add custom connector

https://postcodecheck.mike-tusa.workers.dev/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

validate_postcode
list_countries

PostCode Check in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

PostCode Check MCP server