curl --request POST \
  --url https://www.dench.com/api/v1/email/sending-identities \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "domain",
  "domain": "example.com",
  "fromEmail": "founder@example.com",
  "fromName": "Ada at Example"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    type: 'domain',
    domain: 'example.com',
    fromEmail: 'founder@example.com',
    fromName: 'Ada at Example'
  })
};

fetch('https://www.dench.com/api/v1/email/sending-identities', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://www.dench.com/api/v1/email/sending-identities"

payload = {
    "type": "domain",
    "domain": "example.com",
    "fromEmail": "founder@example.com",
    "fromName": "Ada at Example"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "identityId": "esi_abc123"
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}