This contest has ended, but you can join our current contest.

Take the Nexmo Challenge this month, and show off your developer skills by building something awesome with Nexmo's powerful APIs. Mobile applications, hardware projects, web based service - they're all on the table this month. 

The only requirement is to use our Verify API in some way. Verify is our no-hassle phone verification solution that makes it ridiculously simple to add a second factor to login, or ensure a user is providing their own number during signup. It can also add an extra layer of validation to important transactions, or be a part of an account or password recovery workflow. 

If you're an Android developer, this is the perfect opportunity to give our Android Verify SDK a spin. Take a look at the beta on github, then send post your API key (not secret) to this thread.

But you're certainly not limited to Verify. Use our SMS API to send and receive messages - alert users of events, enable SMS based commands, even protected privacy with virtual numbers. Our Voice APIs make it simple to send a message to a phone, or if your needs are more complex, build a full featured IVR using VoiceXML. Number Insight can provide information about a phone number, things like carrier, ported status, validity and more.

Of course, you probably have ideas better than those examples. Now is the time to show them off.

The submission with the best use of Nexmo's APIs will win the choice of an Xbox One, Gear VR with Galaxy Note 4 or Parrot Bebop drone. 

Need some extra credit for testing? Post your Nexmo API key (not secret) in this thread to have some added.


Community Provided Libraries


  • This contest is open only to legal residents of the United States and other locations where this contest is not prohibited or restricted by law,

  • age eighteen (18) or over,

  • excluding employees of Company and members of their immediate families, and

  • excluding entities (and their personnel and consultants) that provide services competitive with any of Company or its services.


  • Wholly original, and created during the contest.

  • Use Nexmo's Verify and/or any other of Nexmo's APIs as authorized in the applicable documentation and the terms and conditions located at

  • Provided Nexmo access to test the submission. 

Hackathon Sponsors


Pick Your Prize!

The winner will receive their choice of one of the following prizes:
1) Samsung Gear VR Innovator Edition + Galaxy Note 4 ($850)
2) Xbox One with Kinect: Assassin's Creed Unity Bundle ($500)
3) Parrot BeBop Drone ($500)

Devpost Achievements

Submitting to this hackathon could earn you:

How to enter

  • Register on Challenge Post
  • Check The Documentation
  • Create something that use at least Nexmo's Veriy API.
  • Submit what you've built, and a way to test it, through Challenge Post before 11:45 PM on June 30th (GMT)


Tim Lytle

Tim Lytle
Developer Guy, Nexmo

Judging Criteria

  • Best Use of Nexmo
    How well does the integration use Nexmo's APIs? We want that use to be core to the submission.
  • Overall Execution
    Does this submission seem complete? Does it work well? How polished is it?

Tell your friends

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.