curl --request POST \
  --url https://{your-subdomain}.neetocal.com/api/external/v2/prefill-tokens \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <x-api-key>' \
  --data '
{
  "data": {
    "name": "Oliver Smith",
    "email": "oliver@example.com",
    "phone": "+15551234567"
  }
}
'

const options = {
  method: 'POST',
  headers: {'X-Api-Key': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    data: {name: 'Oliver Smith', email: 'oliver@example.com', phone: '+15551234567'}
  })
};

fetch('https://{your-subdomain}.neetocal.com/api/external/v2/prefill-tokens', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{your-subdomain}.neetocal.com/api/external/v2/prefill-tokens"

payload = { "data": {
        "name": "Oliver Smith",
        "email": "oliver@example.com",
        "phone": "+15551234567"
    } }
headers = {
    "X-Api-Key": "<x-api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "prefill_token": "pft_428518d70eb35deab7a8"
}

{
  "error": "param is missing: data"
}