ZIP Code API for Global Address Validation | zipcodestack.com
Free & Reliable
Zip Code API - Free Postal Code Search & Validation
A completely free Zip Code REST API and the best way to get accurate zip code data for your application.
Europe-based
Access The API In Just Three Easy Steps
Zip codes are handled differently in almost every country. We provide an efficient data layer to help you validate and normalize zip codes.
Step 1
Get Your API Key
With a few clicks, register your new API key. We provide a generous free tier to get you started and cover basic use cases.
Step 2
Make A Request
Our API suite provides you with plenty of useful documentation and use case examples to provide you with the best possible experience.
Step 3
Receive Postal Code Data
Receive postal code data in real-time through our Zip code REST-API. All of our data are updated regularly.
Available Data Endpoints
Oour zip code API provides multiple endpoints to allow global searches and postal code related calculations.
GET /api/v1/search
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// search for zip codes
curl -X GET \
--url "https://api.zipcodestack.com/v1/search?codes=20095&country=de" \
--header "apikey: YOUR-APIKEY"
GET /api/v1/distance
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// calculate distance between two zip codes
curl -X GET \
--url "https://api.zipcodestack.com/v1/distance?code=99501&compare=90210" \
--header "apikey: YOUR-APIKEY"
"We had a few special requirements, and the zipcodestack.com team was super responsive & helpful, as they replied to all our questions and helped us get started within just a few hours. With the help of their ZIP code API, we can now easily handle our global address validation and shipping calculations."
Armin Daryabegi
CTO
Frequently Asked Questions
Everything You Need to Know – Answers to Your Most Common Questions
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Start Using Our ZIP Code API For Free Today!
The Perfect Tool To Handle Your Address Validation Needs. Our API Helps You With Current And Accurate Postal Code Data. Stop Worrying About Uptime & Outdated Data.
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