Mock sample for your project: External Accounts API

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.

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 Messages API consolidates and normalises exchanges across all messaging channels. It allows you to use a single API to interact with our various channels such as SMS, MMS, WhatsApp, Viber and Facebook Messenger

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.

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 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.

The Numbers API enables you to manage your existing numbers and buy new virtual numbers for use with the Vonage APIs. Further information is here:

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 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 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 API to retrieve pricing information.
Please note the Pricing API is rate limited to one request per second.

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