Welcome to Nexmo Developer

We are improving our Documentation, API references, learning resources & tooling to help you more effectively use our services. We want to help you find everything you need to integrate Nexmo APIs into your code.

As we start this transition, we’d love to hear from you with thoughts & suggestions. If you’ve got something, positive or negative, to tell us, please tell us using the feedback tool at the bottom of each guide or file an issue on GitHub. - Nexmo


There are a number of shared concepts between the various Nexmo APIs: the use of OAuth tokens, JSON Web Tokens (JWTs), signed requests, and webhooks. The guides below explain in detail how to implement these elements.


  • Applications - Security and configuration information you need to connect to Nexmo endpoints
  • Authentication – API keys, OAuth, and JSON Web Tokens (JWTs)
  • OAuth – how to use OAuth 1.0a with Nexmo's API
  • Signing requests – how to cryptographically sign requests
  • Webhooks – Nexmo's API can send data back to your web server via a webhook