# Sign Up

A light-weight API to sign up customers and subscribe.
You need to have the [Orders](https://docs.zuora.com?resourceId=billing-overview-orders) or [Orders Harmonization](https://docs.zuora.com?resourceId=billing-orders-harmonization) feature enabled to use this API.

 - [POST /v1/sign-up](https://developer.zuora.com/v1-api-reference/api/sign-up/post_signup.md): This call performs many actions. You can use this operation to implement the standard requirements for signing up a customer, such as validating the uniqueness of an account and limiting the number of