無料で商用にも使える日本の郵便番号API

Postal Code API

:postbox: Indonesian postal code search API by place name, village or city/regency.

TypeScript SDK for Brasil API - Query Brazilian postal codes (CEP), companies (CNPJ), banks, FIPE vehicle prices, IBGE data, holidays, and more

Find Brazilian addresses by postal code, directly from Correios API. No HTML parsers.

API HTTP et Script pour trouver les villes à partir d'un code postal et code postaux à partir d'une ville

DEPRECATED Open API that checks and verifies Swedish addresses and postal codes.

Easy, portable, self-hosting Japan postal code API

🛰️ Python-based scraper that automates postal code lookups on the official Correos de Chile website. It simulates the public search form with autocomplete logic and returns clean, structured JSON—ready for direct integration into Django, Flask, or any API-driven backend.

A FilamentPHP plugin that validates Brazilian postal codes (CEP) and automatically fills address fields (street, neighborhood, city, state, country) using ViaCEP as the primary source, with multiple API fallbacks for reliability.

Django app or Docker-compose API endpoint for retrieving and handling updated Mexico postal codes

https://www.onphpid.com/download-membuat-web-api-sederhana-untuk-kode-pos-kota.html

French postal codes API for Dart

A REST API to postal codes. Part of Represent, the open database of Canadian elected representatives and electoral districts.

A simple reactive android implementation to fetch information provided by ViaCep Api about brazilian postal code addresses.

To create an API that will make price forecasts on houses according to certain parameters (postal code, number of rooms, surface area, etc.)

Address Autocomplete for New Zealand Addresses. Lightweight and simple code samples for calling a RESTful API, validating addresses against the NZ Postal Address File and LINZ databases, from a HTML and JavaScript address capture form.

:it: JSON REST API for italian postal codes (CAP) database

Rust library that retrieve Addresses from the Brazilian Postal Code (CEP) using multiple APIs asynchronously, returning the result from the first one to respond.

Look up cities by postal code through Bring's Postal Code API.

A Python script that displays the 5-day weather forecast for a given location at 3 hour intervals. Locations can be searched by city name, postal code, or coordinates. This was implemented using the pyOWM API (Open Weather Map).

postal-code-checker is a comprehensive JavaScript/TypeScript package for validating postal codes across multiple countries. It provides an easy-to-use API for country selection and postal code validation, making it ideal for forms and address validation in web applications.

Using modern GeoIP lookup mechanisms, this SilverStripe module makes available the coordinates, postal code, city, state, country, content, timezone, organization, and ISP to the SilverStripe instance and can open a frontend API for static websites to take advantage of. It can be extended with GeoIP drivers to provide additional or custom contextual data.

PHP API to get city name from postal code

Free ZIP Code API - Free Access to Worldwide Postal Code Data

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Hands on - Consuming Brazilian Postal Codes API ViaCep using OpenFeign

API to access and validade all postal codes and related information from Portugal

The mail_API project is a web API developed in ASP.NET Core, designed to manage Brazilian postal code (CEP) information. The API provides endpoints that allow fetching details of a specific CEP and inserting new address data associated with a CEP.

simple api implementation for geolocating us postal codes from