The Japan Postal Code Fetcher API is a tool designed to provide accurate, structured, and up-to-date information on Japanese addresses based on a postal code. Its main purpose is to facilitate the identification of locations within Japan by providing data such as the prefecture, district, specific area, and their corresponding versions in kanji, kana, and the Roman alphabet (romaji). This functionality allows developers, companies, and digital services to easily integrate address validation and autocomplete into their platforms.
The API is simple to use: when a request is sent with a Japanese postal code, the system returns an organized set of data that includes administrative codes, official names, and transliterations.
In conclusion, the Japan Postal Code Fetcher API represents a modern, efficient, and reliable solution for handling geographic and postal information. Its clear structure, broad compatibility, and official support make it an essential tool for those seeking accuracy, automation, and quality in location data management in the Japanese context.
{"status":200,"message":"","results":[{"oldzipcode":"100 ","zipcode":"1000001","prefcode":"13101","address1":"東京都","address2":"千代田区","address3":"千代田","kana1":"トウキョウト","kana2":"チヨダク","kana3":"チヨダ","alpha1":"Tokyo","alpha2":"Chiyodaku","alpha3":"Chiyoda"}]}
curl --location --request GET 'https://pr197-testing.zylalabs.com/api/11093/japan+postal+code+fetcher+api/20925/postal+code+information?zipcode=1000001' --header 'Authorization: Bearer YOUR_API_KEY'
| Header | Description |
|---|---|
Authorization
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[Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed. |
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
The Japan Postal Code Fetcher API returns detailed address information based on a postal code, including prefecture, city, district, and names in kanji, kana, and romaji.
Key fields in the response include `zipcode`, `prefcode`, `address1` (prefecture), `address2` (district), `address3` (specific area), and their corresponding kana and romaji representations.
The response data is structured in a JSON format, containing a status code, message, and a results array with detailed address information for the requested postal code.
The endpoint provides information such as the postal code, prefecture, district, specific area, and their names in kanji, kana, and romaji, facilitating accurate address identification.
Data accuracy is maintained through regular updates from official postal services and geographic databases, ensuring that the information reflects current administrative boundaries and naming conventions.
Typical use cases include address validation, autocomplete features in forms, geographic analysis, and integration into logistics and delivery systems to enhance location accuracy.
Users can customize their requests by specifying a valid Japanese postal code in the API call, which will return the corresponding address details for that specific code.
Users can utilize the returned data to display complete address information in applications, validate user input in forms, or enhance location-based services by providing accurate geographic context.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
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