https://community.hubspot.com/t5/APIs-Integrations/Connect-to-Hubspot-CRM-via-API-as-a-third-party/m-p/537324#M49237 <P><a href="https://community.hubspot.com/t5/user/viewprofilepage/user-id/154476">@RMones</a> is spot on! </P> <P><a href="https://community.hubspot.com/t5/user/viewprofilepage/user-id/291850">@Renpai</a> , Regarding your follow up question.&nbsp; If this is going to be for this one partner and&nbsp; them alone, I would consider looking into a <A href="https://developers.hubspot.com/docs/api/private-apps" target="_blank" rel="noopener">private app</A> which would be housed within their portal and not a developer account.&nbsp; It is also easier to set up the authentication.&nbsp; Kinda the best of api key and OAuth.</P> <P>&nbsp;</P> <P>If you plan on using it with multiple partners, then the developer account app is the way to go and you should own it <span class="lia-unicode-emoji" title=":grinning_face:">😀</span>.&nbsp; The parner would just need the install URL to add to their account.&nbsp;</P> <P>Seeming you are putting together a postman collection, here is a <A href="https://www.loom.com/share/d0cbafee14bc4e75955d09d6feb56d44" target="_blank" rel="noopener">loom</A> demonstrating how to connect postman to your app with OAuth</P> <P>&nbsp;</P> Mon, 06 Dec 2021 15:47:25 GMT dennisedson 2021-12-06T15:47:25Z