Free APIGeo & WeatherNo keyOfficial
Zippopotam.us
Free, keyless postal/ZIP code lookups across 60+ countries with coordinates
Zippopotam.us is an open-source postal and ZIP code lookup API covering more than 60 countries. Given a country and postal code it returns place names, state/region and coordinates; it also does city-to-ZIP lookups. No signup, no key, CORS enabled, JSON output.
Free tier
Free and open-source, no key, no usage limit published.Rate limits
No published limit; be reasonable since it is a free community service.Auth
No keyBase URL
https://api.zippopotam.usWhat you'd build with it
- Validate and expand a postal/ZIP code during checkout or signup
- Auto-fill city/state from a postal code in a form
- Get approximate coordinates for a postal code without full geocoding
- Map ZIP codes to place names in an enrichment workflow
Key endpoints
- GET
/{country}/{postalcode}Resolve a postal/ZIP code to places + coordinates - GET
/{country}/{state}/{city}Find postal codes for a city (US: state/city)
Members
Members get the runnable recipe
Sign in free to copy the example request, see a sample response, and read the gotchas.
Tags
postal-codezipgeogeocodingopen-source