---
title: "Get transfer fee and cross-chain quota"
method: POST
path: "/open-api/v3/cryptoconnect/transfers/fee-and-quota"
tags: ["Blockchain Transfer"]
---

# Get transfer fee and cross-chain quota

`POST /open-api/v3/cryptoconnect/transfers/fee-and-quota`

## Request

- Base URL: `https://api-sandbox.interlace.money`
- URL: `https://api-sandbox.interlace.money/open-api/v3/cryptoconnect/transfers/fee-and-quota`
- Auth: API key in header `x-access-token`

Preview withdrawal fee and cross-chain quota.

## Request body

- BlockchainTransferPreviewRequest
  - `accountId` string, uuid, required
  - `source` WalletSourceLocation, required: CryptoConnect wallet
    - `type` 'WALLET', required
    - `id` string, required: The id of the wallet.
  - `destination` BlockchainLocation, required: Blockchain wallet address
    - `type` 'BLOCKCHAIN', required
    - `chain` 'ARB' | 'AVAX' | 'BASE' | 'BNB' | 'BTC' | 'ETH' | 'MATIC' | 'OP' | 'SOL' | 'TON' | 'TRX', required
    - `address` string, required: An alphanumeric string which indicates the wallet address used to receive the transfer. Will only be set when the transfer source is a blockchain address.
  - `amount` Money, required
    - `currency` 'BTC' | 'ETH' | 'USDC' | 'USDT' | 'WUSD', required
    - `amount` string, number, required: The transaction amount.

## Response `200`

The request has succeeded.

- object
  - `code` string, required: Code
  - `message` string, required: Message
  - `data` BlockchainTransferPreview, required
    - `crossChainQuota` string, number, required: The portion of the withdrawal exempt from fees.
    - `crossChainFeeRate` string, number, required: The applicable cross-chain fee rate.
    - `crossChainAmount` string, number, required: The portion of the withdrawal subject to cross-chain fees.
    - `fees` BlockchainTransferFee[], required: The handling fees for the withdrawal.
      - `currency` 'BTC' | 'ETH' | 'USDC' | 'USDT' | 'WUSD', required
      - `amount` string, number, required: The transaction amount.
      - `type` 'GAS' | 'CROSS_CHAIN' | 'SERVICE', required

## Other responses

- `400`: The server could not understand the request due to invalid syntax.

---

[API](https://skmtc.dev/interlace/apis/crypto-connect.md) - [All operations](https://skmtc.dev/interlace/apis/crypto-connect/llms.txt) - [OpenAPI document](https://skmtc.dev/interlace/apis/crypto-connect/revisions/9d40c2545370?raw)