curl -X POST \
 /user/api-tokens \
 --header "Content-Type: application/json" \
 --header "Authorization: Bearer <token>" \
 --data '{
    "description": "My API token",
    "expiresAt": "2021-01-01T00:00:00+00:00"
}'

import requests

url = "https://coreapi.io/user/api-tokens"

payload = {
    "description": "My API token",
    "expiresAt": "2021-01-01T00:00:00+00:00"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({description: 'My API token', expiresAt: '2021-01-01T00:00:00+00:00'})
};

fetch('https://coreapi.io/user/api-tokens', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://coreapi.io/user/api-tokens",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'description' => 'My API token',
    'expiresAt' => '2021-01-01T00:00:00+00:00'
  ]),
  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;
}

{
  "id": "A1B2C3D4E5F6G7H8I9J0",
  "token": "api_A1B2C3D4E5F6G7H8I9J0",
  "description": "My API token",
  "expiresAt": "2021-01-01T00:00:00+00:00"
}