https://community.hubspot.com/t5/APIs-Integrations/Call-an-API-without-OAuth/m-p/646510#M54005 <P>Hey,&nbsp;<a href="https://community.hubspot.com/t5/user/viewprofilepage/user-id/398238">@galatioto</a>&nbsp; <span class="lia-unicode-emoji" title=":waving_hand:">👋</span> To confirm, <A href="https://developers.hubspot.com/docs/api/working-with-oauth#:~:text=Marketplace%20must%20use-,OAuth,-.%20If%20you%20use" target="_blank" rel="noopener">OAuth</A> is a requirement for any app listed on the marketplace.</P> <P><STRONG>Please note:</STRONG><SPAN>&nbsp;Any app designed for installation by multiple HubSpot accounts or listing on the App Marketplace must use OAuth. If you use an API key, your app listing will be <STRONG>rejected</STRONG>.&nbsp;</SPAN></P> <P>&nbsp;</P> <P><SPAN>Best,</SPAN></P> <P><SPAN>Jaycee</SPAN></P> <P>&nbsp;</P> Wed, 08 Jun 2022 19:27:08 GMT Jaycee_Lewis 2022-06-08T19:27:08Z