POST https://api.trustware.io/api/v1/routes/quote
Returns a fee estimate, expected output amount, slippage, and estimated completion time for a proposed route. Call this before POST /route to show the user a confirmation screen. AML/OFAC screening runs synchronously — if the source or destination address is flagged, this call returns an error and no funds move.
Request
{
"fromChain": "43114",
"toChain": "137",
"fromToken": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"toToken": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"fromAmount": "215124226346059100",
"fromAddress": "0xeb212fe20f26243ec4d4df2dd49c8aa9fa75a201",
"toAddress": "0xeb212fe20f26243ec4d4df2dd49c8aa9fa75a201",
"slippage": 1
}
| Field | Required | Description |
|---|
fromChain | Yes | Source chain ID as a string (e.g. "43114" for Avalanche). |
toChain | Yes | Destination chain ID as a string (e.g. "137" for Polygon). Use "stellar" for Stellar. |
fromToken | Yes | Source token contract address. Use "0xeeee...eeee" for the native token. |
toToken | Yes | Destination token contract address. |
fromAmount | Yes | Amount in the smallest unit of the source token (wei for EVM). |
fromAddress | Yes | Sender wallet address. AML screening runs against this address. |
toAddress | Yes | Recipient wallet address. |
slippage | No | Slippage tolerance as a percentage. Defaults to 1. Squid-provided routes enforce a hard maximum of 3 (routes above this threshold are rejected by Squid); LiFi-provided routes do not impose this limit. |
Response
{
"data": {
"estimate": {
"fromAmount": "215124226346059100",
"toAmount": "1994795",
"toAmountMin": "1974049",
"toAmountUsd": "1.99",
"totalFeesUsd": "0.050017",
"fees": [
{
"type": "Gas receiver fee",
"amount": "3795341166702376",
"amountUsd": "0.04",
"token": {
"chainId": "43114",
"address": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"symbol": "AVAX",
"decimals": 18
}
},
{
"type": "Service fee",
"amount": "10020",
"amountUsd": "0.010017",
"token": {
"chainId": "137",
"address": "0x750e4c4984a9e0f12978ea6742bc1c5d248f40ed",
"symbol": "USDC.axl",
"decimals": 6
}
}
]
}
}
}
| Field | Description |
|---|
estimate.fromAmount | Source amount in the smallest unit. |
estimate.toAmount | Expected destination amount in the smallest unit of the destination token. |
estimate.toAmountMin | Minimum destination amount accounting for slippage. |
estimate.toAmountUsd | Expected destination value in USD. |
estimate.totalFeesUsd | Total fees in USD across all fee types. |
estimate.fees | Itemized fee breakdown. Each entry has type, amount, amountUsd, and token metadata. |
AML behavior
If Trustware’s AML/OFAC screening flags the source or destination address, this endpoint returns an error. No funds move. The specific reason is never exposed in the error response — your application should handle the error generically and show a neutral message to the user.
Always call /quote before /route. The AML check runs here. If you skip the quote step and call /route directly, you bear the risk of initiating a transaction that would have been rejected at the quote stage.
