Token Transfer

After having found a suitable connection, all you need to send a transaction to your or your user's wallet is our /quote endpoint.

const getQuote = async (fromChain, toChain, fromToken, toToken, fromAmount, fromAddress) => {
    const result = await axios.get('https://li.quest/v1/quote', {
        params: {
            fromChain,
            toChain,
            fromToken,
            toToken,
            fromAmount,
            fromAddress,
        }
    });
    return result.data;
}

const fromChain = 'DAI';
const fromToken = 'USDC';
const toChain = 'POL';
const toToken = 'USDC';
const fromAmount = '1000000';
const fromAddress = YOUR_WALLET_ADDRESS;

const quote = await getQuote(fromChain, toChain, fromToken, toToken, fromAmount, fromAddress);

If a quote for this transfer can be found, it looks like the following:

{
  "id": "0x26c3922540d49bb76c12d665ea8304e976fcdce167f6b4ccec5bb5c3a2a372c1",
  "type": "lifi", // this can be a 'cross' (across chains), a 'swap' (same chain), or a 'lifi' (can wrap both types of transactions internally) transaction
  "tool": "hop", // the bridge or exchanged used for this transaction
  "action": {
    "fromChainId": 100,
    "fromAmount": "1000000",
    "fromToken": { ... }, // information about the token being sent
    "fromAddress": ..., // the sender's address
    "toChainId": 137,
    "toToken": { ... }, // information about the token being received
    "toAddress": ..., // the receiver's address
    "slippage": 0.03
  },
  "estimate": {
    "fromAmount": "1000000",
    "toAmount": "700186",
    "toAmountMin": "679180",
    "approvalAddress": "0x5A9Fd7c39a6C488E715437D7b1f3C823d5596eD1",
    "gasCosts": [
      {
        "type": "SEND",
        "price": "1500000000",
        "estimate": "430000",
        "limit": "537500",
        "amount": "645000000000000",
        "amountUSD": "0.00",
        "token": { ... } // information about the token that the gas is payed in
      }
    ],
    "executionDuration": 150, // estimated duration in seconds
    "fromAmountUSD": "1.00",
    "toAmountUSD": "0.70"
  },
  "includedSteps": [ // steps that will be executed internally as part of this transaction
    {
      "id": "7efd153c-4c25-402c-8389-5d4d3229e253",
      "type": "swap",
      "tool": "sushiswap-dai",
      "action": {
        "fromChainId": 100,
        "toChainId": 100,
        "fromToken": { ... },
        "toToken": { ... },
        "fromAmount": "1000000",
        "slippage": 0.03,
        "fromAddress": ...,
        "toAddress": ...
      },
      "estimate": {
        "fromAmount": "1000000",
        "toAmount": "999839",
        "toAmountMin": "969844",
        "approvalAddress": "0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506",
        "executionDuration": 30,
        "feeCosts": [
          {
            "name": "LP Fee",
            "percentage": "0.003",
            "token": { ... },
            "amount": "3000"
          }
        ],
        "gasCosts": [
          {
            "type": "SEND",
            "price": "1500000000",
            "estimate": "200000",
            "limit": "250000",
            "amount": "300000000000000",
            "amountUSD": "0.00",
            "token":  { ... }
          }
        ],
        "fromAmountUSD": "1.00",
        "toAmountUSD": "1.00"
      }
    },
    {
      "id": "0x26c3922540d49bb76c12d665ea8304e976fcdce167f6b4ccec5bb5c3a2a372c1",
      "type": "cross",
      "tool": "hop",
      "action": {
        "fromChainId": 100,
        "toChainId": 137,
        "fromToken": { ... },
        "toToken":  { ... },
        "fromAmount": "969844",
        "slippage": 0.03,
        "fromAddress": ...,
        "toAddress": ...
      },
      "estimate": {
        "fromAmount": "969844",
        "toAmount": "700186",
        "toAmountMin": "679180",
        "approvalAddress": "0x76b22b8C1079A44F1211D867D68b1eda76a635A7",
        "executionDuration": 120,
        "feeCosts": [
          {
            "name": "LP Fee",
            "percentage": "0.00079909758682839714",
            "token": { ... },
            "amount": "775"
          },
          {
            "name": "Bonder Fee",
            "percentage": "0.25792807915499812341",
            "token": { ... },
            "amount": "250150"
          },
          {
            "name": "Destination Tx Fee",
            "percentage": "0.01867001290929262851",
            "token": { ... },
            "amount": "18107"
          }
        ],
        "gasCosts": [
          {
            "type": "SEND",
            "price": "1500000000",
            "estimate": "230000",
            "limit": "287500",
            "amount": "345000000000000",
            "amountUSD": "0.00",
            "token": { ... }
          }
        ],
        "fromAmountUSD": "0.97",
        "toAmountUSD": "0.70"
      }
    }
  ],
  "transactionRequest": { // the ethers.js transaction request
    "data": "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",
    "to": ..., // the contract address
    "value": "0x00",
    "from": ..., // the sender
    "chainId": 100,
    "gasLimit": "0x149970",
    "gasPrice": "0x59682f00"
  }
}

The action contains information about what exactly will happen, the estimate will contain information about the estimated outcome of the transaction.

But to send the transaction to your wallet, the transactionRequest has to be used. It is an ethers.js TransactionRequest object which can directly be passed on to a wallet.

To see what this can look like, check out the Transferring Tokens guide.

Possible Query Parameters

The /quote endpoints offer several parameters that can be used to fine-tune the result.

Parameter	Required	Description	Example
fromChain	✅	The sending chain. Can be the chain id or chain key	DAI
toChain	✅	The receiving chain. Can be the chain id or chain key	POL
fromToken	✅	The token that should be transferred. Can be the address or the symbol	USDC
toToken	✅	The token that should be transferred to. Can be the address or the symbol	MATIC
fromAddress	✅	The sending wallet address	Your wallet address
toAddress	❌	The receiving wallet address. If none is provided, the fromAddress will be used	Your second wallet address
fromAmount	✅	The amount that should be sent including all decimals (e.g. 1000000 for 1 USDC (6 decimals))	1000000
order	❌	Which kind of route should be preferred	BEST_VALUE, BEST_FEE, or BEST_FEE_GAS
slippage	❌	The maximum allowed slippage for the transaction (0.05 represents 5%)	0.05
integrator	❌	A string containing tracking information about the integrator of the API	SirSwapALot
fee	❌	The percent of the integrator's fee that is taken from every transaction. 0.02 represents 2%. The maximum fee amount is 10%.	0.02
referrer	❌	Integrators can set a wallet address as referrer to track them	0x552008c0f6870c2f77e5cC1d2eb9bdff03e30Ea0
allowBridges	❌	List of bridges that are allowed for this transaction	multichain,connext
allowExchanges	❌	List of exchanges that are allowed for this transaction	1inch,paraswap
denyBridges	❌	List of bridges that are not allowed for this transaction	cbridge,optimism
denyExchanges	❌	List of exchanges that are not allowed for this transaction	openocean
preferBridges	❌	List of bridges that should be preferred for this transaction	connext
preferExchanges	❌	List of exchanges that should be preferred for this transaction	1inch

The bridges we currently support are: hop, multichain, cbridge, connext, hyphen, optimism, polygon, arbitrum and avalanche.

The currently available exchanges are 1inch, paraswap, openocean, 0x and a lot of dexes.

For a complete and up-to-date list, please refer to our API documentation.