Systems and methods for populating online applications using third party platforms

A method comprising the steps of:

• storing, at a database, a web-based form that includes an interface mechanism to allow an applicant to select a third party to provide data to populate a plurality of fields of the web-based form;
• transmitting, by a communication interface, the web-based form to a device of the applicant and receiving an input indicative of an applicant selection for the third party to provide data to populate the plurality of fields of the web-based form;
• and
• transmitting, by an application server in conjunction with the communication interface, in response to the receipt of the input, a third-party application programming interface (API) call to the selected third party;
• transmitting data indicative of an authentication request associated with the selected third party;
• receiving a security token in response to a validated authentication request, the security token enabling communication between the application server and the selected third party via the third party API;
• requesting a set of data from the selected third party via the third party API, and wherein, in response to the request for the set of data from the selected third party, receiving the requested set of data via the third party API, the requested set of data including data for populating a specific data field of the web-based form.