POST /quote

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).
`fromToken`	Yes	Source token identifier: contract address on EVM, mint address on Solana, native denom on Cosmos. Use `"0xeeee...eeee"` for the native token on EVM chains.
`toToken`	Yes	Destination token identifier: contract address on EVM, mint address on Solana, native denom on Cosmos (e.g. `"unibi"`).
`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`. The accepted ceiling is provider dependent: some providers reject a route above `3`, others impose no limit, so a value above `3` can narrow which providers can serve the route.

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, so 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.

Getting Started

Endpoints

Request

Response

AML behavior

​Request

​Response

​AML behavior

Request

Response

AML behavior