curl --request POST \
  --url https://{your-subdomain}.neetoengage.com/api/external/v2/attachments \
  --header 'Accept: <accept>' \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-Api-Key: <x-api-key>' \
  --form file=@example-file

const form = new FormData();
form.append('file', '<string>');

const options = {method: 'POST', headers: {'X-Api-Key': '<x-api-key>', Accept: '<accept>'}};

options.body = form;

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

import requests

url = "https://{your-subdomain}.neetoengage.com/api/external/v2/attachments"

files = { "file": ("example-file", open("example-file", "rb")) }
headers = {
    "X-Api-Key": "<x-api-key>",
    "Accept": "<accept>"
}

response = requests.post(url, files=files, headers=headers)

print(response.text)

{
  "id": "40f7e262-7adb-4940-b84a-e770264211d9",
  "filename": "cover.png",
  "content_type": "image/png",
  "byte_size": 482133,
  "checksum": "1B2M2Y8AsgTpgAmY7PhCfg==",
  "key": "j5ysfeyrkbwhh980krdqpk81ksfj",
  "metadata": {
    "organization_id": "6f9f4b00-68d4-45fb-be8e-1839bf7d70ac",
    "identified": true
  },
  "created_at": "2026-10-13T04:28:54.272Z",
  "attachable_sgid": "eyJfcmFpbHMiOnsiZGF0YSI6ImdpZDovL25lZXRv...",
  "signed_id": "eyJfcmFpbHMiOnsiZGF0YSI6IjQwZjdlMjYyLTdh...",
  "blob_url": "https://spinkart.neetoengage.com/rails/active_storage/blobs/redirect/eyJfcmFpbHMi.../cover.png"
}

{
  "error": "Could not authenticate, invalid API Key"
}

{
  "error": "File is required"
}