> For the complete documentation index, see [llms.txt](https://docs.novacura.com/flow-connect/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.novacura.com/flow-connect/working-with-connect/connect-to-systems/redirect-uris.md).

# Redirect URIs

A redirect URI, also known as a reply URL, is the endpoint where the authentication server directs the user after they have successfully logged in and received an access token. When signing in a user, an application includes a redirect URI as part of the login request. Once the login process is complete, the authentication server uses this URI to return the user to the application, to complete the authentication process.

Redirect URIs are used in Novacura Flow when a connector is configured to require additional authentication. See [authentication type configuration](/flow-connect/working-with-connect/connect-to-systems/connectors/rest.md#configuration-values), and [additional authentication for end-users](/flow-connect/working-with-connect/use/on-mobile-devices.md#additional-authentication-when-running-an-app) for more information.

<table data-full-width="false"><thead><tr><th>Client</th><th width="245">URL</th><th>Type</th><th></th></tr></thead><tbody><tr><td>iOS / Android / Windows</td><td>nccloud://openid</td><td>Interactive authentication</td><td>NATIVE APP</td></tr><tr><td>Web</td><td><a href="https://app.novacura.com/">https://app.novacura.com/</a></td><td>Interactive authentication</td><td>SPA</td></tr><tr><td>Portal</td><td><a href="https://board.novacura.com/openid">https://board.novacura.com/openid</a></td><td>Interactive authentication</td><td>SPA</td></tr></tbody></table>


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