PostCode Check

dev.workers.mike-tusa.postcodecheck/postcodecheckVersion 0.2.3

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

Status

Responds120 msNov 14, 2026, 14:28 UTCAnswered our handshake without sign-in.

We could not refresh it, so this page shows the last copy.

Data from the official MCP Registry, checked by run.zero. How we check

Streamable HTTP

https://postcodecheck.mike-tusa.workers.dev/mcpResponds120 msNov 14, 2026, 14:28 UTC

No sign-in

claude mcp add --transport http postcodecheck https://postcodecheck.mike-tusa.workers.dev/mcp

1
2
3

Settings > Connectors > Add custom connector
Name: postcodecheck
Remote MCP server URL: https://postcodecheck.mike-tusa.workers.dev/mcp

{
  "mcpServers": {
    "postcodecheck": {
      "url": "https://postcodecheck.mike-tusa.workers.dev/mcp"
    }
  }
}

code --add-mcp '{"name":"postcodecheck","type":"http","url":"https://postcodecheck.mike-tusa.workers.dev/mcp"}'

Built your own server? run.zero hosts MCP servers on European infrastructure.

2 tools

Tools of PostCode Check
	Description		Read-only	Idempotent	Open world
`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 name for the code (zip, eircode, PIN…). Read-only. Same data as GET /v1/countries.	List every supported country and territory with its ISO code, English name, whether it uses postal codes, a format example and the local name for the code (zip, eircode, PIN…). Read-only. Same data as GET /v1/countries.	No	Yes	Yes	No
`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 example and the country name. Example: country "NL", code "1234ab" → valid true, normalized "1234 AB". Format check only (Google libaddressinput patterns): it does not confirm the code exists or is deliverable. Countries without postal codes return valid false with reason "no_postal_codes". Read-only. Same engine as GET /v1/validate.	Check whether a postal code has a valid format for a country and return its normalized form (uppercase, official space or hyphen), a format example and the country name. Example: country "NL", code "1234ab" → valid true, normalized "1234 AB". Format check only (Google libaddressinput patterns): it does not confirm the code exists or is deliverable. Countries without postal codes return valid false with reason "no_postal_codes". Read-only. Same engine as GET /v1/validate.	No	Yes	Yes	No