curl 7.81.0 (x86_64-pc-linux-gnu) libcurl/7.81.0 OpenSSL/3.0.2 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libidn2/2.3.2 libpsl/0.21.0 (+libidn2/2.3.2) libssh/0.9.6/openssl/zlib nghttp2/1.43.0 librtmp/2.3 OpenLDAP/2.5.17
jq-1.6

curl https://zipcloud.ibsnet.co.jp/api/search?zipcode=1000001 | jq

{
  "message": null,
  "results": [
    {
      "address1": "東京都",
      "address2": "千代田区",
      "address3": "千代田",
      "kana1": "ﾄｳｷｮｳﾄ",
      "kana2": "ﾁﾖﾀﾞｸ",
      "kana3": "ﾁﾖﾀﾞ",
      "prefcode": "13",
      "zipcode": "1000001"
    }
  ],
  "status": 200
}