Cross-Currency Transfers

Estimate crypto withdrawal fee

Changed on

Estimate the network and application fees for a cryptocurrency withdrawal from a crypto internal account to an external blockchain address. Use this to show fee information to customers before they initiate a withdrawal.

post/crypto/estimate-withdrawal-fee

Request

  • Base URL: https://api.lightspark.com/grid/2025-10-13
  • URL: https://api.lightspark.com/grid/2025-10-13/crypto/estimate-withdrawal-fee
  • Auth: HTTP basic

Request body

internalAccountIdstring required

The ID of the crypto internal account to withdraw from.

currencystring required

The currency code of the asset to withdraw (e.g. USDC).

cryptoNetworkstring required

The blockchain network for the withdrawal. Example values: SOLANA, ETHEREUM, BASE, POLYGON, ARBITRUM, SPARK, LIGHTNING, BITCOIN.

amountinteger required

The amount to withdraw in the smallest unit of the currency.

destinationAddressstring required

The blockchain address to withdraw funds to.

Example request

{
  "internalAccountId": "InternalAccount:a12dcbd6-dced-4ec4-b756-3c3a9ea3d123",
  "currency": "USDC",
  "cryptoNetwork": "SOLANA",
  "amount": 1000000,
  "destinationAddress": "7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU"
}

Response

Fee estimation returned successfully

networkFeeinteger required

The estimated network (gas) fee in the smallest unit of the network fee asset (e.g. lamports for SOL). This is provided for informational purposes to show the raw on-chain cost. Note that this value is denominated in networkFeeAsset, not in the withdrawal currency — it cannot be directly added to applicationFee or compared to totalFee.

networkFeeAssetstring required

The asset used to pay the network fee (e.g. SOL for Solana transactions).

applicationFeeinteger required

The application fee charged by the platform in the smallest unit of the withdrawal currency. Zero if no application fee applies.

totalFeeinteger required

The total cost of the withdrawal in the smallest unit of the withdrawal currency. This equals the network fee converted to the withdrawal currency at current rates plus the application fee. This is the amount deducted from the withdrawal in addition to netAmount.

netAmountinteger required

The net amount the recipient will receive after fees, in the smallest unit of the withdrawal currency.

Example response

{
  "networkFee": 5000,
  "networkFeeAsset": "SOL",
  "totalFee": 5000,
  "netAmount": 995000
}

Changes

  • 3966e5d38aadRevision changes
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    • warning

      added the new ACCOUNT_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new AUTH_METHOD_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new CUSTOMER_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new DOCUMENT_HOLDER_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new INSUFFICIENT_FUNDS enum value to the response property for the response status

    • warning

      added the new NOT_FOUND enum value to the response property for the response status

    • warning

      added the new PAYMENT_URL_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new PLATFORM_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new QUOTE_EXPIRED enum value to the response property for the response status

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      added the new QUOTE_RATE_UNAVAILABLE enum value to the response property for the response status

    • warning

      added the new REQUEST_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new SESSION_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new STABLECOIN_AMOUNT_NOT_REPRESENTABLE enum value to the response property for the response status

    • warning

      added the new STABLECOIN_BURN_SOURCE_NOT_SUPPORTED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_EXTERNAL_ACCOUNT_LINK_FAILED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_EXTERNAL_ACCOUNT_LINK_METHOD_REQUIRED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_EXTERNAL_ACCOUNT_NOT_FOUND enum value to the response property for the response status

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      added the new STABLECOIN_EXTERNAL_ACCOUNT_NOT_LINKED enum value to the response property for the response status

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      added the new STABLECOIN_EXTERNAL_ACCOUNT_NOT_SUPPORTED enum value to the response property for the response status

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      added the new STABLECOIN_EXTERNAL_ACCOUNT_PROVIDER_LINK_FAILED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_EXTERNAL_ACCOUNT_PROVIDER_LINK_REQUIRED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_GRID_OPERATIONS_NOT_ENABLED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new STABLECOIN_NOT_PROVISIONED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_OPERATION_NOT_FOUND enum value to the response property for the response status

    • warning

      added the new STABLECOIN_OPERATION_NOT_SUPPORTED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_PROVIDER_ERROR enum value to the response property for the response status

    • warning

      added the new STABLECOIN_PROVIDER_SOURCE_NOT_LINKED enum value to the response property for the response status

    • warning

      added the new STABLECOIN_VERIFICATION_FAILED enum value to the response property for the response status

    • warning

      added the new VERIFICATION_NOT_FOUND enum value to the response property for the response status

    • info

      added the required property to the response with the status

    • info

      added the required property to the response with the status

    • info

      added the required property to the response with the status

    • info

      added the required property to the response with the status

  • aaa1fb8782c8Revision changes
    • warning

      added the new EXTERNAL_ACCOUNT_VERIFICATION_REQUIRED enum value to the response property for the response status