curl --request POST \
  --url https://api.getsly.ai/v1/v1/ucp/quote \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "amount": 123
}'

{
  "data": {
    "amount": 123,
    "rate": "<string>",
    "fee": "<string>",
    "receive_amount": "<string>",
    "receive_currency": "<string>",
    "expires_at": "2023-11-07T05:31:56Z"
  }
}