In an example, a computer-implemented method includes determining a set of permissions that specifies types of account data of one or more financial accounts to share with a third-party, the one or more financial accounts being associated with a user and held by a financial institution, and generating authorization data that authenticates the third-party and authorizes the third-party to access the types of account data specified by the set of permissions. The method also includes transmitting the authorization data to the third-party, receiving a request for authorization that includes the authorization data and a request for account data of the one or more financial accounts that conforms to the types of account data specified by the set of permissions, authorizing the third-party based on the authorization data, and transmitting the account data that conforms to the types of account data specified by the set of permissions.