Which type of API would be used to allow authorized salespeople of an organization access to internal sales data from their mobile devices?

The type of API that would be used to allow authorized salespeople of an organization access to internal sales data from their mobile devices is typically a private API.

Private APIs are designed for use within an organization and are not exposed to external users. These APIs are intended to improve internal development and operational efficiency by enabling different systems within an organization to communicate with each other. In this scenario, where the salespeople are part of the organization and need to access internal sales data securely, a private API would be appropriate as it ensures controlled access to sensitive internal data.

Other types of APIs have different intended uses:

• Public APIs are openly available to developers and other users outside the organization. They are designed for external users to interact with services provided by the organization but are not typically used for internal data access due to security concerns.
• Open APIs are similar to public APIs; they are publicly available and can be used by external developers. The term “open” often refers to the API being open-source or following open standards.
• Partner APIs are shared externally but only with specific business partners and not the general public. These APIs are used to facilitate business-to-business interactions and are more controlled than public or open APIs but are not intended for internal use only.

Given the requirement for internal access by authorized personnel, a private API would be the most secure and appropriate choice.