curl --request GET \
  --url https://api.cal.com/v2/organizations/{orgId}/attributes/assignments/{userId}/history \
  --header 'Authorization: <authorization>'

{
  "status": "success",
  "data": {
    "userId": 5,
    "membershipId": 42,
    "auditLogs": [
      {
        "id": "018ff5cd-6dc4-7d57-bcbc-374702ca8b38",
        "timestamp": "2026-06-04T10:00:00.000Z",
        "source": "API_V2",
        "actor": {
          "type": "USER",
          "displayName": "Alice Admin",
          "displayEmail": "alice@example.com",
          "displayAvatar": "https://example.com/avatar.png"
        },
        "sourceContext": {
          "kind": "API_V2"
        },
        "changes": [
          {
            "type": "VALUE_CHANGED",
            "attribute": {
              "id": "attr_dept",
              "slug": "department",
              "name": "Department",
              "type": "SINGLE_SELECT"
            },
            "previous": {
              "optionId": "opt_engineering",
              "optionSlug": "engineering",
              "value": "Engineering",
              "weight": 100
            },
            "current": {
              "optionId": "opt_engineering",
              "optionSlug": "engineering",
              "value": "Engineering",
              "weight": 100
            }
          }
        ],
        "hasError": true
      }
    ],
    "hasMore": true,
    "nextCursor": "018ff5cd-6dc4-7d57-bcbc-374702ca8b38"
  }
}