curl --request DELETE \
  --url https://api.kit.com/v4/bulk/tags \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "tags": [
    {
      "id": 91
    },
    {
      "id": 92
    }
  ]
}
'

require 'uri'
require 'net/http'

url = URI("https://api.kit.com/v4/bulk/tags")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Delete.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"tags\": [\n    {\n      \"id\": 91\n    },\n    {\n      \"id\": 92\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

const options = {
  method: 'DELETE',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({tags: [{id: 91}, {id: 92}]})
};

fetch('https://api.kit.com/v4/bulk/tags', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.kit.com/v4/bulk/tags"

	payload := strings.NewReader("{\n  \"tags\": [\n    {\n      \"id\": 91\n    },\n    {\n      \"id\": 92\n    }\n  ]\n}")

	req, _ := http.NewRequest("DELETE", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.kit.com/v4/bulk/tags",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "DELETE",
  CURLOPT_POSTFIELDS => json_encode([
    'tags' => [
        [
                'id' => 91
        ],
        [
                'id' => 92
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

import requests

url = "https://api.kit.com/v4/bulk/tags"

payload = { "tags": [{ "id": 91 }, { "id": 92 }] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.delete(url, json=payload, headers=headers)

print(response.text)

{
  "failures": [
    {
      "errors": [
        "Tag does not exist"
      ],
      "tag": {
        "id": 91
      }
    }
  ]
}

{}

{
  "errors": [
    "The access token is invalid"
  ]
}

{
  "errors": [
    "This request exceeds your queued bulk requests limit. Please wait while we process your existing requests and try again later."
  ]
}

{
  "errors": [
    "No tags included for processing"
  ]
}