API — Japan (JP)

Endpoints

Quick Start

JavaScript

fetch('https://api.openadmindata.org/api/v1/countries/jp.json')
  .then(r => r.json())
  .then(data => {
    const levels = data.meta.levels.map(l => l.name_en);
    console.log('Japan:', levels.join(' → '));
    
    console.log(data.data.prefecture.length, 'prefectures');
  });

Python

import requests
data = requests.get('https://api.openadmindata.org/api/v1/countries/jp.json').json()
prefectures = data['data']['prefecture']
print(f"Japan: {len(prefectures)} prefectures")

cURL

curl -s https://api.openadmindata.org/api/v1/jp/prefecture.json | jq '.count'

Schema

Each entity record contains: