https://mailchimp.com/developer/marketing/api/list-segments/list-segments/
List segments | Mailchimp Marketing API Reference | Mailchimp Developer
Get information about all available segments for a specific list.
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https://sendpulse.com/knowledge-base/email-service/mailing-list-recipients/create-segments
Create and use mailing list segments | SendPulse
Learn how to create segments of subscribers in your mailing lists, what types of segments and conditions are available, their features and how to use them....
mailing listcreateusesegmentssendpulse