Currently there are two ways of integrating World ID in external applications:
  • IDKit libraries: Our lightweight SDKs that make it easy verifying users in your applications.
  • Sign with World ID: Our OIDC implementation that integrates World ID into OIDC

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Which should I use?

Choose IDKit if you:
  • Want full control over the user interface
  • Need to verify users without page redirects
  • Want the quickest setup
  • Want to uniquely verify your existing users too
Choose Sign with World ID if you:
  • Already use OAuth/OIDC providers (Google, GitHub)
  • Want a standard authentication flow
Note: Currently, Sign with World ID creates new user accounts and cannot link to existing accounts. This limitation may be addressed in future updates