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FAQ

Q1: What is an API?​

A: API stands for Application Programming Interface. Through APIs, clients can connect their own systems with Webull’s main system to perform actions such as getting quotes, inquiries, and automated trading.

Q2. Why am I receiving an HTTP 403 Error (Forbidden)?​

A 403 error will be returned by the market data interface if any of the following conditions are met:

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

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

Q3: Do we need to worry about generating signatures when using the Webull SDK?​

A: No, the Webull SDK already encapsulates signature generation. No extra effort is needed.

Q4: How long does API application approval take?​

A: The review and approval process for the API application is typically completed within 1 to 2 business days.

Q5: Do we need to worry about generating signatures when using the Webull SDK?​

A: No, the Webull SDK already encapsulates signature generation. No extra effort is needed.

Q6: Why do I need an App Key and App Secret?​

A: The App Key and App Secret are unique application-level identifiers assigned to developers. Only users with a valid App Key and App Secret can make requests and interact with the API.