delete
https://{youraccountname}.api-us1.com/api/3/lists//bulk_delete
Delete a batch of the contacts on a list. Intended for emptying a very large list, which cannot be done in a single call, by repeating this request until it reports that it removed no more contacts.
Only contacts that belong to no other list are removed, so a contact subscribed elsewhere stays in the account. The list itself is not deleted; use DELETE /lists/{id} for that.
limit is required and caps how many contacts a single call removes.
This endpoint is gated: an account it is not enabled for receives 400 with You do not have permission to execute this.
