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Pizzly is an OAuth-based API (aka an API that uses OAuth as the authentication method) Most APIs now use the OAuth framework to authorize an application that wants to access a user's data. But one of the main reasons is that OAuth provides the best user experience while being very secure. In 2019, Bearer's engineers developed a solution that eased how to integrate with any API using OAuth. It saved hours of engineering time when working with API integrations, by handling both the authentication strategy (with refresh tokens) and proxying the request.