curl --request POST \
  --url https://{your-subdomain}.neetokb.com/api/external/v2/themes/{theme_id}/fonts \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <x-api-key>' \
  --data '
{
  "font": {
    "name": "Roboto",
    "weights": "400,700"
  }
}
'

const options = {
  method: 'POST',
  headers: {'X-Api-Key': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({font: {name: 'Roboto', weights: '400,700'}})
};

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

import requests

url = "https://{your-subdomain}.neetokb.com/api/external/v2/themes/{theme_id}/fonts"

payload = { "font": {
        "name": "Roboto",
        "weights": "400,700"
    } }
headers = {
    "X-Api-Key": "<x-api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "font": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name": "Roboto",
    "weights": "400,700"
  }
}

{
  "error": "Not found."
}

{
  "error": "Name can't be blank."
}