curl --request GET \
  --url https://api.justpaid.io/api/v1/contract/{contract_id} \
  --header 'Authorization: Bearer <token>'

{
  "uuid": "123e4567-e89b-12d3-a456-426614174000",
  "title": "Enterprise Agreement",
  "contract_status": "accepted",
  "contract_start_date": "2024-01-01",
  "contract_end_date": "2025-01-01",
  "contract_amount": 120000,
  "currency": "USD",
  "payment_terms": "net_30",
  "is_evergreen": false,
  "customer": {
    "uuid": "customer-uuid",
    "name": "Acme Corp",
    "email": "contact@acme.com"
  },
  "plan_items": [
    {
      "uuid": "item-uuid",
      "name": "API Calls",
      "billing_alias": "api_calls",
      "prices": [
        {
          "uuid": "price-uuid",
          "price": 0.001,
          "price_type": "usage_based_fee",
          "billing_cycle": "monthly"
        }
      ]
    }
  ],
  "line_items": [],
  "file_url": "https://api.justpaid.io/files/contract.pdf",
  "created_at": "2024-01-01T00:00:00Z"
}