post https://core-h.mkbank.com.br/api/pix/search_key
To search for the Pix key, it is necessary that it has been created in a testing environment, known as a homologation environment. The Search Pix Key endpoint allows you to search for a Pix key by providing the key value and optional document number. This endpoint helps you retrieve relevant information associated with the Pix key, such as the account details or additional metadata.