This public API is built using the light-weight architecture REST. Our API takes advantage of HTTP requests to post any data requests. This API encodes all requests, response bodies, and error codes in JSON.
Users are provided access to exclusive sandbox environment to test the application with live characteristics. The API uses authentication keys to validate every request received and grant further access to the API.
Through our different API endpoints, users can create, update, validate, and transmit the IRS tax returns. The API uses the concept of webhooks to instantly communicate the sender on status of tax forms. It also allows the sender to place a PDF download request through Webhooks.