List Credentials

curl --request GET \
  --url 'https://{workspace_id}.{region}.maas.aliyuncs.com/api/v1/agentstudio/credentials?vault_id=%3Cstring%3E' \
  --header 'Authorization: Bearer <YOUR_API_KEY>'

{
  "data": [
    {
      "id": "cred_xxx",
      "type": "credential",
      "vault_id": "vlt_xxx",
      "display_name": "第三方 API 密钥",
      "auth": {
        "type": "environment_variable",
        "secret_name": "API_KEY",
        "networking": {
          "type": "unrestricted"
        }
      },
      "metadata": {},
      "archived_at": null,
      "created_at": "2026-07-10T08:00:00Z",
      "updated_at": "2026-07-10T08:00:00Z",
      "request_id": "req_xxx"
    }
  ],
  "next_page": null
}