Common Response Format

Spot Open API Response Format

Success Response (code = 0):

{
  "code": 0,
  "msg": "success",
  "data": { ... }
}

Futures Open API Response Format

Success Response (code = 200):

{
  "code": 200,
  "msg": "success",
  "data": { ... }
}

Error Response (Common)

{
  "code": 400,
  "message": "Error description"
}

Common Error Codes

Error Code	Description
400	Invalid parameters
401	Authentication failed (signature error, timestamp expired, IP whitelist, etc.)
403	Permission denied
404	Resource not found
429	Too many requests (rate limit exceeded)
500	Internal server error

Note

Spot Open API returns code: 0 on success, while Futures Open API returns code: 200 on success.