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v1

latestOpenAPI 3.1.0Proprietary2026-07-2464170247.4 KB
Fees

Estimate Transaction Fees

Get estimated fees before executing a transaction.

Actions:

  • DEPOSIT: Deposit of assets
  • WITHDRAWAL: Withdrawal of assets
  • CONVERSION: Not supported - use /conversions/quote instead

Fee Calculation:

The fee is determined by combining action + asset:

  • DEPOSIT + Crypto asset (USDC, USDT, etc.) → No fee
  • DEPOSIT + Fiat currency (USD, EUR, MXN) → Fiat deposit fee
  • WITHDRAWAL + Crypto asset → Crypto withdrawal fee (includes gas)
  • WITHDRAWAL + Fiat currency → Fiat withdrawal fee

Notes:

  • Crypto withdrawal fees include network gas fees and may fluctuate
  • Fiat fees are fixed rate + percentage

Networks:

  • Crypto: ETHEREUM, POLYGON, ARBITRUM, AVALANCHE, BASE, BNBCHAIN, SOLANA, TRON
  • Fiat: US_ACH, US_FEDWIRE, US_RTP, SWIFT, CUBIX, BANK_TRANSFER, PIX_TRANSFER
post/v1/customers/{customer_id}/fees/estimate

Path parameters

customer_idstring required

Customer ID

Request body

action'DEPOSIT' | 'WITHDRAWAL' | 'CONVERSION' | 'AUTO_CONVERSION' | 'TRANSFER' | 'REWARD' required
amountstring required

Amount for fee calculation

assetstring required
  • Stablecoin assets: USDC, USDT, PYUSD, RLUSD, USDG, USDP, EURC, MXNB, 1USD(1USD/USDC conversion only, deposit/withdrawal not supported)
  • Digital assets: BTC
  • Fiat currencies: USD
networkstring required

Example request

{
  "amount": "1000",
  "asset": "USDC",
  "network": "ETHEREUM"
}

Response

valuestring required

Fee amount

assetstring required
  • Stablecoin assets: USDC, USDT, PYUSD, RLUSD, USDG, USDP, EURC, MXNB, 1USD(1USD/USDC conversion only, deposit/withdrawal not supported)
  • Digital assets: BTC
  • Fiat currencies: USD

Example response

{
  "value": "10.55",
  "asset": "USDC"
}