curl -X POST "https://api.cryptomate.me/virtual-wallets/bank-ramps/ramp-on/simulate" \
  -H "x-api-key: $CRYPTOMATE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "wallet_id": "vw_a1b2c3d4-e5f6-4a7b-8c9d-0e1f2a3b4c5d",
    "origin_currency": "USD",
    "amount": 1000.00
  }'

{
  "original_amount": 1000.00,
  "original_currency": "USD",
  "final_amount": 995.00,
  "final_currency": "USDC",
  "exchange_rate": 1.00,
  "service_fee": 5.00
}

{
  "code": "NOT_FOUND",
  "message": "Wallet not found"
}