import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.inboxes.threads.remove({
  inboxId: 'b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1',
  threadId: '4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12',
});

curl -X DELETE 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx'

resend inboxes threads delete b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1 4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12 \
  --yes

{
  "object": "inbox_thread",
  "id": "4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12",
  "deleted": true
}