The Account and Transaction API Profile describes the flows and common functionality for Accounts and Transactions, which allows an Account Information Service Provider ('AISP') to: + Register an intent to retrieve account information by creating an "account access consent". This registers the data "permissions", expiration and historical period allowed for transactions / statements - that the customer (PSU) has consented to provide to the AISP; and + Subsequently, retrieve account and transaction data. For more background and details, see [account-and-transaction-api-profile](https://openbankinguk.github.io/read-write-api-site3/v3.1.6/profiles/account-and-transaction-api-profile.html) as published by UK OBIE.