Introduction

Technically, API stands for Application Programming Interface. An API is nothing but a set of functions and procedures which will help users to access the features (or) data of an application/service/operating system directly from another application. Let us see a simple example to understand it better.

Remember when you are booking a movie (or) flight ticket, you will often see this option "Add to your Google Calendar" on the booking website. When you hit this button, the booking website will talk to Google's server directly in the background with a request to create an event schedule and the booking website's server will process the response and display the confirmation message on your screen. i.e., you are using a feature of an application without accessing its interface.

Likewise, Zoho Sign APIs provides the option for users to programmatically perform user management, document management, and other operations directly without accessing the Zoho Sign's web interface. We provide REpresentational State Transfer Application Programming Interface - shortly called as the "REST API" to serve this purpose.

Why REST?

REST APIs follows the REpresentational State Transfer architecture that takes advantage of the already existing protocols, for instance, it uses HTTP protocol for web APIS - meaning it provides great flexibility for developers to use existing libraries while building their custom applications. It was originally developed by Dr. Roy Fielding in 2000 and adopted by developers across the globe for its ease-of-use and simplicity.

Every resource is exposed as an URL and the URL of each resource can be obtained by accessing the API root endpoint.

How secure are your APIs?

Zoho Sign REST APIs leverages the industry-standard OAuth 2.0 protocol for authorization. It authorizes applications to interact with it without actually giving away the password. i.e., it provides delegated access to the service and authorizes third-party applications to access the user account securely.

What are the supported operations?

Zoho Sign APIs supports a growing list of operations mentioned below. Over the period, we will support all the operations available in our web interface.