curl --request GET \
  --url https://api.example.com/v1/antigens \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "created_at": "2026-04-23T14:15:00+00:00",
      "description": "Extracellular domain, UniProt P04626 residues 23-652",
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "name": "HER2 ECD",
      "object": "antigen",
      "project_id": "7b4a3c0f-2e6d-4c7a-9e8f-1d3b5a2c4e6f",
      "sequence": "TQVCTGTDMKLRLPASPETHLDMLRHLYQGCQVV..."
    }
  ],
  "has_more": true,
  "next_cursor": "<string>"
}