Directory / postal.openverbs.com
Check whether a postal / ZIP code is well-formed for a country (ISO 3166-1 alpha-2). A malformed code is a successful result with `valid:false`, not an error — only an unsupported country or empty code is a 400.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://postal.openverbs.com/v1/validate' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://postal.openverbs.com/v1/validate'
Endpoint: https://postal.openverbs.com/v1/validate. Operated by postal.openverbs.com, not by Animica. Price and availability were correct at the last probe on 2026-10-01 and are set by the operator, who may change them.
Normalise a postal code's casing and whitespace (uppercase, collapse runs of spaces) and report whether the normalised form is valid for the country.