curl --request DELETE \
  --url https://{projectID}.texterchat.com/server/api/v2/labels/{labelId} \
  --header 'Authorization: Bearer <token>'

const options = {method: 'DELETE', headers: {Authorization: 'Bearer <token>'}};

fetch('https://{projectID}.texterchat.com/server/api/v2/labels/{labelId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{projectID}.texterchat.com/server/api/v2/labels/{labelId}"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

OK

{
  "error": "Label high_priority not found"
}