curl --request GET \
  --url https://api.firecrawl.dev/v1/team/credit-usage \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "remaining_credits": 1000,
    "plan_credits": 500000,
    "billing_period_start": "2025-01-01T00:00:00Z",
    "billing_period_end": "2025-01-31T23:59:59Z"
  }
}