Categories › Software Development › Converters, validators, encoders & small utilities
Validate and normalize postal codes offline for 252 countries and territories. Format check only.
Remote server: your requests and data go to postcodecheck.mike-tusa.workers.dev. Claude Code: claude mcp add --transport http postcode-check https://postcodecheck.mike-tusa.workers.dev/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
validate_postcode — Check whether a postal code has a valid format for a country and return its normalized form (uppercase, official space or hyphen), a format list_countries — List every supported country and territory with its ISO code, English name, whether it uses postal codes, a format example and the local namNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.