Send data from a simple web form to a web service to create a new user account, through an API. -- 2

We have a simple form in wordpress with Contact Form 7. We need that data to be sent to a web service where we create new user accounts. The web service has an API to create these new accounts. We attach the PDF with the API documentation of web service. Please note that we NEED ONLY the first API: "Create an Account" (pages 7 to 9 of the Api documentation pdf). Once assigned the proyect for you, we send you the following data necessary to program the api and make tests: Api Token, Email and PlanID (You will understand more when you read pages 7 to 9 of the documentation). The tests will have to be done from a form mounted on your server, and once ready we will give you access to our web server (wp) so that you can integrate the api. To avoid automatic responses from freelancers that do not review the documentation, I ask you to add in your proposal the name of the web service that appears in all the pages of the attached documentation (We will not consider offers that do not include this). That way we'll know you're aware of what we need. Note that our time zone is GMT -3. Thank you.