curl -X POST https://api.reel25.com/api/v1/folders/f1a2b3c4-.../accounts \
  -H "Authorization: Bearer reel25_sk_..." \
  -H "Content-Type: application/json" \
  -d '{"account_ids": ["8f14e45f-...", "9a25b56g-..."]}'

const response = await fetch(
  'https://api.reel25.com/api/v1/folders/f1a2b3c4-.../accounts',
  {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer reel25_sk_...',
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      account_ids: ['8f14e45f-...', '9a25b56g-...'],
    }),
  }
);

import requests

response = requests.post(
    f'https://api.reel25.com/api/v1/folders/{folder_id}/accounts',
    headers={
        'Authorization': 'Bearer reel25_sk_...',
        'Content-Type': 'application/json',
    },
    json={'account_ids': ['8f14e45f-...', '9a25b56g-...']}
)

{
  "data": [
    { "id": "8f14e45f-...", "success": true },
    { "id": "9a25b56g-...", "success": true }
  ]
}