curl --request POST \
  --url https://api.example.com/api/semantic-models/sql/validate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "sql": "<string>",
  "limit": 50
}
'

{
  "valid": true,
  "error": "<string>",
  "output_columns": []
}