HTTP Status & Error Codes

The BaZi API uses standard HTTP response status codes. 400 for validation errors, 401 for unauthorized, 429 for rate limits, and 500 for calculation errors.

{
  "success": false,
  "message": "Validation failed.",
  "errors": [
    { "field": "birthDate", "message": "Required YYYY-MM-DD string" }
  ]
}