curl --request POST \
  --url https://api.hubapi.com/crm/lists/2026-03/records/memberships/batch/read \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputs": [
    {
      "objectTypeId": "<string>",
      "recordId": "<string>"
    }
  ]
}
'

{
  "completedAt": "2023-11-07T05:31:56Z",
  "results": [
    {
      "objectTypeId": "<string>",
      "recordId": "<string>",
      "recordListMemberships": [
        {
          "firstAddedTimestamp": "2023-11-07T05:31:56Z",
          "lastAddedTimestamp": "2023-11-07T05:31:56Z",
          "listId": "<string>",
          "listVersion": 123,
          "isPublicList": true
        }
      ]
    }
  ],
  "startedAt": "2023-11-07T05:31:56Z",
  "links": {},
  "requestedAt": "2023-11-07T05:31:56Z"
}