ZipCodeAPI
FreemiumLiveLast verified 24 Sept 2026
Distance, radius search, and location lookups between US zip codes and Canadian postal codes.
Example request
curl -s 'https://www.zipcodeapi.com/rest/$API_KEY/info.json/90210/degrees'
Free tier, in plain English
Free plan gives a limited key with 240 lookups a day; paid annual plans raise the hourly/daily caps.
Alternatives in Geocoding
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