Проверяйте телефонные номера до того, как они попадут в вашу систему.

curl -X POST "https://number.boostclicks.tech/api/v1/verify" \
  -H "X-API-Key: $NUMBER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"phone":"+14155552671"}'

import os
import requests

response = requests.post(
    "https://number.boostclicks.tech/api/v1/verify",
    headers={"X-API-Key": os.environ["NUMBER_API_KEY"]},
    json={"phone": "+14155552671"},
    timeout=10,
)
print(response.json())

const response = await fetch(
  "https://number.boostclicks.tech/api/v1/verify",
  {
    method: "POST",
    headers: {
      "X-API-Key": process.env.NUMBER_API_KEY,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ phone: "+14155552671" }),
  },
);

console.log(await response.json());