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FAQ

1. Why am I receiving an HTTP 403 error (Forbidden)?​

A 403 error is returned by the market data API when any of the following conditions are met:

  • The request does not include authentication information
  • The authentication credentials are invalid
  • The user does not have sufficient permissions

For more details, please refer to:
User Authentication and Authorization Process Authentication.

2: Do we need to handle signatures when using the Webull SDK?​

A: No, the Webull SDK has already encapsulated signature generation within the SDK, so you do not need to worry about it.

3: Why do we need to add an App Key and App Secret?​

A: The App Key and App Secret are application-level identity credentials assigned to developers. Only users with an App Key and App Secret can interact with the API properly.

4: How can I enable paid market data permissions?​

A: Please go to the Market Data Store in the Webull APP to purchase.