How can I create a custom activity in HubSpot via the API to replicate an integration like 'Hilos.io

[PDelfinHipoli]

Hello,

I'm attempting to replicate a custom integration in HubSpot, similar to 'Hilos.io', using the API. I would like to know how I can create an activity that appears differently in the user interface, including a custom icon and a specific text format, as shown in the attached image. Is it possible to define these customizations directly through the API, or do I need to use any additional configurations or development tools?

I would appreciate any guidance or code examples you could provide.

Thank you for your assistance.

[GRajput · Accepted solution]

Hi @PDelfinHipoli 

Please use the following docs link:

https://developers.hubspot.com/docs/api/crm/timeline

I hope this will help you out. Please mark it as Solution Accepted and upvote to help another Community member.
Thanks!