curl --request GET \
  --url https://{host}/v2/workspaces/slug:agent-factory/webhooks/v1/agents/{agentId}/access \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "agent_id": "<string>",
      "principal_id": "<string>",
      "email": "<string>",
      "orgSlug": "<string>",
      "granted_by": "<string>",
      "role_slug": "<string>"
    }
  ],
  "total": 123,
  "page": 123,
  "limit": 123
}