ViaCep - Free Geocoding API (No Auth Required)

Overview

Brazilian postal code lookup

Notes: Free Brazilian postcode lookup API.

What it does: ViaCep: Brazilian postal code lookup.

Quick start: https://viacep.com.br/ws/01310994/json/

No API key needed!

Call this URL to see what you get back:

https://viacep.com.br/ws/01310994/json/

Try This URL Now →

Do I need an API key?: No! This API is completely free to use with no authentication required.
Is there a rate limit?: Most free APIs have generous limits. Check documentation for specifics.
Can I use this in a commercial project?: Yes, these APIs are free for both personal and commercial use. Check the documentation for any specific restrictions.
How do I get started?: Copy the example URL above and paste it into your browser or code. The response is in JSON format which you can parse in any programming language.

fetch('https://viacep.com.br/ws/01310994/json/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

import requests

url = 'https://viacep.com.br/ws/01310994/json/'
response = requests.get(url)
data = response.json()
print(data)