Mock sample for your project: Nexmo Application API

The Media API can be used to query, download and delete media items such as audio files for use with other Nexmo APIs.

The External Accounts API is used to manage accounts for Viber Business Messages, Facebook Messenger and Whatsapp for use in the Messages and Dispatch APIs.

Vonage provides an Application API to allow management of your Vonage Applications.
This API is backwards compatible with version 1. Applications created using version 1 of the API can also be managed using version 2 (this version) of the API.

With the SMS API you can send SMS from your account and lookup messages both messages that you've sent as well as messages sent to your virtual numbers. Numbers are specified in E.164 format. More SMS API documentation is at

The Number Insight API delivers real-time intelligence about the validity, reachability and roaming status of a phone number and tells you how to format the number correctly in your application. There are three levels of Number Insight API available: Basic, Standard and Advanced. The advanced API is available asynchronously as well as synchronously.

The Verify API helps you to implement 2FA (two-factor authentication) in your applications. This is useful for:
Protecting against spam, by preventing spammers from creating multiple accounts
Monitoring suspicious activity, by forcing an account user to verify ownership of a number
Ensuring that you can reach your users at any time because you have their correct phone number
More information is available at

The Conversation API enables you to build conversation features where communication can take place across multiple mediums including IP Messaging, PSTN Voice, SMS and WebRTC Audio and Video. The context of the conversations is maintained though each communication event taking place within a conversation, no matter the medium.

The Subaccounts API enables you to create subaccounts under your primary account. Subaccounts facilitate differential product configuration, reporting, and billing. The Subaccounts API is released initially with restricted availability. You can read more about the API in the Subaccounts documentation.

The Dispatch API enables the developer to specify a multiple message workflow. A workflow follows a template. The first one we are adding is the failover template. The failover template instructs the Messages API to first send a message to the specified channel. If that message fails immediately or if the condition_status is not reached within the given time period the next message is sent. The developer will also receive status webhooks from the messages resource for each delivery and read event. This API is currently in Beta.

The Conversion API allows you to tell Nexmo about the reliability of your 2FA communications. Sending conversion data back to us means that Nexmo can deliver messages faster and more reliably.
The conversion data you send us is confidential: Nexmo does not share it with third parties.
In order to identify the carriers who provide the best performance, Nexmo continually tests the routes we use to deliver SMS and voice calls. Using Adaptive Routing™, Nexmo actively reroutes messages through different carrier routes and ensures faster and more reliable delivery for your messages. The route choice is made using millions of real-time conversion data points.

The Vonage Audit API allows you to view details of changes to your account. More information is available at.
Please note that the Audit API is currently in Beta

The Reports API enables you to request a report of activity for your Vonage account.
Depending on your query pattern, you can choose from one of the two versions of the Reports API: asynchronous and synchronous. The asynchronous version is optimized for infrequent and large data queries (from several records to tens of millions). The synchronous version is optimized for frequent and periodic retrievals of small batches of data records (from one record to tens of thousand per query).
Only synchronous version supports retrival of data records by message/record ID.
Vonage recommends that you limit asynchronous queries to a maximum of 20 million records, by setting the start and end dates accordingly. On average, the asynchronous Reports API takes 5 - 10 minutes to generate 1 million records.