Populate an advanced route step transaction
curl --request POST \
--url https://api.delora.build/v1/advanced/stepTransaction \
--header 'Content-Type: application/json' \
--data '
{
"step": {
"id": "advanced-route:0",
"routeId": "advanced-route",
"type": "bridge",
"tool": "RELAY",
"action": {
"fromChainId": 8453,
"toChainId": 42161,
"fromToken": {
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"symbol": "USDC",
"decimals": 6,
"chainId": 8453
},
"toToken": {
"address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"symbol": "USDC",
"decimals": 6,
"chainId": 42161
},
"fromAmount": "1000000"
},
"estimate": {
"fromAmount": "1000000",
"toAmount": "997321",
"toAmountMin": "992334",
"fees": {
"total": {
"amount": "0",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453
},
"breakdown": []
}
},
"execution": {
"applyFee": true
}
},
"context": {
"senderAddress": "0x1111111111111111111111111111111111111111",
"receiverAddress": "0x2222222222222222222222222222222222222222"
}
}
'import requests
url = "https://api.delora.build/v1/advanced/stepTransaction"
payload = {
"step": {
"id": "advanced-route:0",
"routeId": "advanced-route",
"type": "bridge",
"tool": "RELAY",
"action": {
"fromChainId": 8453,
"toChainId": 42161,
"fromToken": {
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"symbol": "USDC",
"decimals": 6,
"chainId": 8453
},
"toToken": {
"address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"symbol": "USDC",
"decimals": 6,
"chainId": 42161
},
"fromAmount": "1000000"
},
"estimate": {
"fromAmount": "1000000",
"toAmount": "997321",
"toAmountMin": "992334",
"fees": {
"total": {
"amount": "0",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453
},
"breakdown": []
}
},
"execution": { "applyFee": True }
},
"context": {
"senderAddress": "0x1111111111111111111111111111111111111111",
"receiverAddress": "0x2222222222222222222222222222222222222222"
}
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
step: {
id: 'advanced-route:0',
routeId: 'advanced-route',
type: 'bridge',
tool: 'RELAY',
action: {
fromChainId: 8453,
toChainId: 42161,
fromToken: {
address: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
symbol: 'USDC',
decimals: 6,
chainId: 8453
},
toToken: {
address: '0xaf88d065e77c8cC2239327C5EDb3A432268e5831',
symbol: 'USDC',
decimals: 6,
chainId: 42161
},
fromAmount: '1000000'
},
estimate: {
fromAmount: '1000000',
toAmount: '997321',
toAmountMin: '992334',
fees: {
total: {
amount: '0',
currencySymbol: 'USDC',
currencyAddress: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
chainId: 8453
},
breakdown: []
}
},
execution: {applyFee: true}
},
context: {
senderAddress: '0x1111111111111111111111111111111111111111',
receiverAddress: '0x2222222222222222222222222222222222222222'
}
})
};
fetch('https://api.delora.build/v1/advanced/stepTransaction', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.delora.build/v1/advanced/stepTransaction",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'step' => [
'id' => 'advanced-route:0',
'routeId' => 'advanced-route',
'type' => 'bridge',
'tool' => 'RELAY',
'action' => [
'fromChainId' => 8453,
'toChainId' => 42161,
'fromToken' => [
'address' => '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
'symbol' => 'USDC',
'decimals' => 6,
'chainId' => 8453
],
'toToken' => [
'address' => '0xaf88d065e77c8cC2239327C5EDb3A432268e5831',
'symbol' => 'USDC',
'decimals' => 6,
'chainId' => 42161
],
'fromAmount' => '1000000'
],
'estimate' => [
'fromAmount' => '1000000',
'toAmount' => '997321',
'toAmountMin' => '992334',
'fees' => [
'total' => [
'amount' => '0',
'currencySymbol' => 'USDC',
'currencyAddress' => '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
'chainId' => 8453
],
'breakdown' => [
]
]
],
'execution' => [
'applyFee' => true
]
],
'context' => [
'senderAddress' => '0x1111111111111111111111111111111111111111',
'receiverAddress' => '0x2222222222222222222222222222222222222222'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.delora.build/v1/advanced/stepTransaction"
payload := strings.NewReader("{\n \"step\": {\n \"id\": \"advanced-route:0\",\n \"routeId\": \"advanced-route\",\n \"type\": \"bridge\",\n \"tool\": \"RELAY\",\n \"action\": {\n \"fromChainId\": 8453,\n \"toChainId\": 42161,\n \"fromToken\": {\n \"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 8453\n },\n \"toToken\": {\n \"address\": \"0xaf88d065e77c8cC2239327C5EDb3A432268e5831\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 42161\n },\n \"fromAmount\": \"1000000\"\n },\n \"estimate\": {\n \"fromAmount\": \"1000000\",\n \"toAmount\": \"997321\",\n \"toAmountMin\": \"992334\",\n \"fees\": {\n \"total\": {\n \"amount\": \"0\",\n \"currencySymbol\": \"USDC\",\n \"currencyAddress\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"chainId\": 8453\n },\n \"breakdown\": []\n }\n },\n \"execution\": {\n \"applyFee\": true\n }\n },\n \"context\": {\n \"senderAddress\": \"0x1111111111111111111111111111111111111111\",\n \"receiverAddress\": \"0x2222222222222222222222222222222222222222\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.delora.build/v1/advanced/stepTransaction")
.header("Content-Type", "application/json")
.body("{\n \"step\": {\n \"id\": \"advanced-route:0\",\n \"routeId\": \"advanced-route\",\n \"type\": \"bridge\",\n \"tool\": \"RELAY\",\n \"action\": {\n \"fromChainId\": 8453,\n \"toChainId\": 42161,\n \"fromToken\": {\n \"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 8453\n },\n \"toToken\": {\n \"address\": \"0xaf88d065e77c8cC2239327C5EDb3A432268e5831\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 42161\n },\n \"fromAmount\": \"1000000\"\n },\n \"estimate\": {\n \"fromAmount\": \"1000000\",\n \"toAmount\": \"997321\",\n \"toAmountMin\": \"992334\",\n \"fees\": {\n \"total\": {\n \"amount\": \"0\",\n \"currencySymbol\": \"USDC\",\n \"currencyAddress\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"chainId\": 8453\n },\n \"breakdown\": []\n }\n },\n \"execution\": {\n \"applyFee\": true\n }\n },\n \"context\": {\n \"senderAddress\": \"0x1111111111111111111111111111111111111111\",\n \"receiverAddress\": \"0x2222222222222222222222222222222222222222\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.delora.build/v1/advanced/stepTransaction")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"step\": {\n \"id\": \"advanced-route:0\",\n \"routeId\": \"advanced-route\",\n \"type\": \"bridge\",\n \"tool\": \"RELAY\",\n \"action\": {\n \"fromChainId\": 8453,\n \"toChainId\": 42161,\n \"fromToken\": {\n \"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 8453\n },\n \"toToken\": {\n \"address\": \"0xaf88d065e77c8cC2239327C5EDb3A432268e5831\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 42161\n },\n \"fromAmount\": \"1000000\"\n },\n \"estimate\": {\n \"fromAmount\": \"1000000\",\n \"toAmount\": \"997321\",\n \"toAmountMin\": \"992334\",\n \"fees\": {\n \"total\": {\n \"amount\": \"0\",\n \"currencySymbol\": \"USDC\",\n \"currencyAddress\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"chainId\": 8453\n },\n \"breakdown\": []\n }\n },\n \"execution\": {\n \"applyFee\": true\n }\n },\n \"context\": {\n \"senderAddress\": \"0x1111111111111111111111111111111111111111\",\n \"receiverAddress\": \"0x2222222222222222222222222222222222222222\"\n }\n}"
response = http.request(request)
puts response.read_body{
"id": "<string>",
"routeId": "<string>",
"tool": "RELAY",
"action": {
"fromChainId": 123,
"toChainId": 123,
"fromToken": {
"address": "<string>",
"symbol": "<string>",
"decimals": 123,
"chainId": 123
},
"toToken": {
"address": "<string>",
"symbol": "<string>",
"decimals": 123,
"chainId": 123
},
"fromAmount": "<string>",
"slippage": 123,
"fromAddress": "<string>",
"toAddress": "<string>"
},
"estimate": {
"fromAmount": "<string>",
"toAmount": "<string>",
"toAmountMin": "<string>",
"fees": {
"total": {
"amount": "2679",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453,
"decimals": 6
},
"breakdown": [
{
"amount": "2679",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453,
"type": "gas",
"decimals": 6,
"amountUsd": "0.01"
}
],
"totalUsd": "0.01"
},
"quoteFromAmount": "<string>",
"estimatedTimeSec": 123,
"approvalAddress": "<string>",
"simulatedToAmount": "<string>",
"simulation": {
"source": "TENDERLY",
"executionStatus": "SUCCESS",
"outputValidation": "VERIFIED",
"advertisedOutputAmount": "997321",
"latencyMs": 712,
"providerResults": [
{
"source": "TENDERLY",
"executionStatus": "SUCCESS",
"outputValidation": "VERIFIED",
"latencyMs": 312,
"simulatedOutputAmount": "996100",
"deviation": {
"absolute": "-1200",
"bps": -12,
"percent": "-0.12%"
},
"gasUsed": "142331",
"reason": "Exceeded 700ms"
}
],
"simulatedOutputAmount": "996100",
"deviation": {
"absolute": "-1200",
"bps": -12,
"percent": "-0.12%"
},
"gasUsed": "142331",
"reason": "Simulation exceeded budget"
}
},
"execution": {
"applyFee": true,
"requiresPreviousStepAmount": true,
"quoteRequest": {},
"routeRequest": {}
},
"transactionRequest": {
"to": "<string>",
"value": "<string>",
"data": "<string>",
"gas": {
"gasPrice": "0x3b9aca00",
"maxFeePerGas": "0x59682f00",
"maxPriorityFeePerGas": "0x3b9aca00"
},
"transactionSize": {
"raw": 123,
"encoded": 123
}
},
"integrator": "<string>",
"fee": 123,
"warnings": [
{
"code": "SOLANA_INSUFFICIENT_BALANCE",
"message": "Solana simulation reported insufficient balance."
}
],
"bridgeScan": {}
}{
"statusCode": 400,
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters",
"timestamp": "2026-05-13T18:00:00.000Z",
"details": {
"message": [
"One or more request parameters are invalid."
]
},
"path": "/v1/..."
}{
"statusCode": 429,
"code": "RATE_LIMIT",
"message": "Rate limit exceeded. Please try again later.",
"details": {
"message": "Rate limit exceeded. Please try again later."
},
"timestamp": "2026-05-15T16:58:45.603Z",
"path": "/v1/advanced/stepTransaction"
}API Endpoints
Populate advanced step transaction
Re-quotes the selected step and returns executable transaction data. For later steps, pass the actual previous step output as context.previousStepReceivedAmount.
POST
/
v1
/
advanced
/
stepTransaction
Populate an advanced route step transaction
curl --request POST \
--url https://api.delora.build/v1/advanced/stepTransaction \
--header 'Content-Type: application/json' \
--data '
{
"step": {
"id": "advanced-route:0",
"routeId": "advanced-route",
"type": "bridge",
"tool": "RELAY",
"action": {
"fromChainId": 8453,
"toChainId": 42161,
"fromToken": {
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"symbol": "USDC",
"decimals": 6,
"chainId": 8453
},
"toToken": {
"address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"symbol": "USDC",
"decimals": 6,
"chainId": 42161
},
"fromAmount": "1000000"
},
"estimate": {
"fromAmount": "1000000",
"toAmount": "997321",
"toAmountMin": "992334",
"fees": {
"total": {
"amount": "0",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453
},
"breakdown": []
}
},
"execution": {
"applyFee": true
}
},
"context": {
"senderAddress": "0x1111111111111111111111111111111111111111",
"receiverAddress": "0x2222222222222222222222222222222222222222"
}
}
'import requests
url = "https://api.delora.build/v1/advanced/stepTransaction"
payload = {
"step": {
"id": "advanced-route:0",
"routeId": "advanced-route",
"type": "bridge",
"tool": "RELAY",
"action": {
"fromChainId": 8453,
"toChainId": 42161,
"fromToken": {
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"symbol": "USDC",
"decimals": 6,
"chainId": 8453
},
"toToken": {
"address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"symbol": "USDC",
"decimals": 6,
"chainId": 42161
},
"fromAmount": "1000000"
},
"estimate": {
"fromAmount": "1000000",
"toAmount": "997321",
"toAmountMin": "992334",
"fees": {
"total": {
"amount": "0",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453
},
"breakdown": []
}
},
"execution": { "applyFee": True }
},
"context": {
"senderAddress": "0x1111111111111111111111111111111111111111",
"receiverAddress": "0x2222222222222222222222222222222222222222"
}
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
step: {
id: 'advanced-route:0',
routeId: 'advanced-route',
type: 'bridge',
tool: 'RELAY',
action: {
fromChainId: 8453,
toChainId: 42161,
fromToken: {
address: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
symbol: 'USDC',
decimals: 6,
chainId: 8453
},
toToken: {
address: '0xaf88d065e77c8cC2239327C5EDb3A432268e5831',
symbol: 'USDC',
decimals: 6,
chainId: 42161
},
fromAmount: '1000000'
},
estimate: {
fromAmount: '1000000',
toAmount: '997321',
toAmountMin: '992334',
fees: {
total: {
amount: '0',
currencySymbol: 'USDC',
currencyAddress: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
chainId: 8453
},
breakdown: []
}
},
execution: {applyFee: true}
},
context: {
senderAddress: '0x1111111111111111111111111111111111111111',
receiverAddress: '0x2222222222222222222222222222222222222222'
}
})
};
fetch('https://api.delora.build/v1/advanced/stepTransaction', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.delora.build/v1/advanced/stepTransaction",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'step' => [
'id' => 'advanced-route:0',
'routeId' => 'advanced-route',
'type' => 'bridge',
'tool' => 'RELAY',
'action' => [
'fromChainId' => 8453,
'toChainId' => 42161,
'fromToken' => [
'address' => '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
'symbol' => 'USDC',
'decimals' => 6,
'chainId' => 8453
],
'toToken' => [
'address' => '0xaf88d065e77c8cC2239327C5EDb3A432268e5831',
'symbol' => 'USDC',
'decimals' => 6,
'chainId' => 42161
],
'fromAmount' => '1000000'
],
'estimate' => [
'fromAmount' => '1000000',
'toAmount' => '997321',
'toAmountMin' => '992334',
'fees' => [
'total' => [
'amount' => '0',
'currencySymbol' => 'USDC',
'currencyAddress' => '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913',
'chainId' => 8453
],
'breakdown' => [
]
]
],
'execution' => [
'applyFee' => true
]
],
'context' => [
'senderAddress' => '0x1111111111111111111111111111111111111111',
'receiverAddress' => '0x2222222222222222222222222222222222222222'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.delora.build/v1/advanced/stepTransaction"
payload := strings.NewReader("{\n \"step\": {\n \"id\": \"advanced-route:0\",\n \"routeId\": \"advanced-route\",\n \"type\": \"bridge\",\n \"tool\": \"RELAY\",\n \"action\": {\n \"fromChainId\": 8453,\n \"toChainId\": 42161,\n \"fromToken\": {\n \"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 8453\n },\n \"toToken\": {\n \"address\": \"0xaf88d065e77c8cC2239327C5EDb3A432268e5831\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 42161\n },\n \"fromAmount\": \"1000000\"\n },\n \"estimate\": {\n \"fromAmount\": \"1000000\",\n \"toAmount\": \"997321\",\n \"toAmountMin\": \"992334\",\n \"fees\": {\n \"total\": {\n \"amount\": \"0\",\n \"currencySymbol\": \"USDC\",\n \"currencyAddress\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"chainId\": 8453\n },\n \"breakdown\": []\n }\n },\n \"execution\": {\n \"applyFee\": true\n }\n },\n \"context\": {\n \"senderAddress\": \"0x1111111111111111111111111111111111111111\",\n \"receiverAddress\": \"0x2222222222222222222222222222222222222222\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.delora.build/v1/advanced/stepTransaction")
.header("Content-Type", "application/json")
.body("{\n \"step\": {\n \"id\": \"advanced-route:0\",\n \"routeId\": \"advanced-route\",\n \"type\": \"bridge\",\n \"tool\": \"RELAY\",\n \"action\": {\n \"fromChainId\": 8453,\n \"toChainId\": 42161,\n \"fromToken\": {\n \"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 8453\n },\n \"toToken\": {\n \"address\": \"0xaf88d065e77c8cC2239327C5EDb3A432268e5831\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 42161\n },\n \"fromAmount\": \"1000000\"\n },\n \"estimate\": {\n \"fromAmount\": \"1000000\",\n \"toAmount\": \"997321\",\n \"toAmountMin\": \"992334\",\n \"fees\": {\n \"total\": {\n \"amount\": \"0\",\n \"currencySymbol\": \"USDC\",\n \"currencyAddress\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"chainId\": 8453\n },\n \"breakdown\": []\n }\n },\n \"execution\": {\n \"applyFee\": true\n }\n },\n \"context\": {\n \"senderAddress\": \"0x1111111111111111111111111111111111111111\",\n \"receiverAddress\": \"0x2222222222222222222222222222222222222222\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.delora.build/v1/advanced/stepTransaction")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"step\": {\n \"id\": \"advanced-route:0\",\n \"routeId\": \"advanced-route\",\n \"type\": \"bridge\",\n \"tool\": \"RELAY\",\n \"action\": {\n \"fromChainId\": 8453,\n \"toChainId\": 42161,\n \"fromToken\": {\n \"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 8453\n },\n \"toToken\": {\n \"address\": \"0xaf88d065e77c8cC2239327C5EDb3A432268e5831\",\n \"symbol\": \"USDC\",\n \"decimals\": 6,\n \"chainId\": 42161\n },\n \"fromAmount\": \"1000000\"\n },\n \"estimate\": {\n \"fromAmount\": \"1000000\",\n \"toAmount\": \"997321\",\n \"toAmountMin\": \"992334\",\n \"fees\": {\n \"total\": {\n \"amount\": \"0\",\n \"currencySymbol\": \"USDC\",\n \"currencyAddress\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\n \"chainId\": 8453\n },\n \"breakdown\": []\n }\n },\n \"execution\": {\n \"applyFee\": true\n }\n },\n \"context\": {\n \"senderAddress\": \"0x1111111111111111111111111111111111111111\",\n \"receiverAddress\": \"0x2222222222222222222222222222222222222222\"\n }\n}"
response = http.request(request)
puts response.read_body{
"id": "<string>",
"routeId": "<string>",
"tool": "RELAY",
"action": {
"fromChainId": 123,
"toChainId": 123,
"fromToken": {
"address": "<string>",
"symbol": "<string>",
"decimals": 123,
"chainId": 123
},
"toToken": {
"address": "<string>",
"symbol": "<string>",
"decimals": 123,
"chainId": 123
},
"fromAmount": "<string>",
"slippage": 123,
"fromAddress": "<string>",
"toAddress": "<string>"
},
"estimate": {
"fromAmount": "<string>",
"toAmount": "<string>",
"toAmountMin": "<string>",
"fees": {
"total": {
"amount": "2679",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453,
"decimals": 6
},
"breakdown": [
{
"amount": "2679",
"currencySymbol": "USDC",
"currencyAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"chainId": 8453,
"type": "gas",
"decimals": 6,
"amountUsd": "0.01"
}
],
"totalUsd": "0.01"
},
"quoteFromAmount": "<string>",
"estimatedTimeSec": 123,
"approvalAddress": "<string>",
"simulatedToAmount": "<string>",
"simulation": {
"source": "TENDERLY",
"executionStatus": "SUCCESS",
"outputValidation": "VERIFIED",
"advertisedOutputAmount": "997321",
"latencyMs": 712,
"providerResults": [
{
"source": "TENDERLY",
"executionStatus": "SUCCESS",
"outputValidation": "VERIFIED",
"latencyMs": 312,
"simulatedOutputAmount": "996100",
"deviation": {
"absolute": "-1200",
"bps": -12,
"percent": "-0.12%"
},
"gasUsed": "142331",
"reason": "Exceeded 700ms"
}
],
"simulatedOutputAmount": "996100",
"deviation": {
"absolute": "-1200",
"bps": -12,
"percent": "-0.12%"
},
"gasUsed": "142331",
"reason": "Simulation exceeded budget"
}
},
"execution": {
"applyFee": true,
"requiresPreviousStepAmount": true,
"quoteRequest": {},
"routeRequest": {}
},
"transactionRequest": {
"to": "<string>",
"value": "<string>",
"data": "<string>",
"gas": {
"gasPrice": "0x3b9aca00",
"maxFeePerGas": "0x59682f00",
"maxPriorityFeePerGas": "0x3b9aca00"
},
"transactionSize": {
"raw": 123,
"encoded": 123
}
},
"integrator": "<string>",
"fee": 123,
"warnings": [
{
"code": "SOLANA_INSUFFICIENT_BALANCE",
"message": "Solana simulation reported insufficient balance."
}
],
"bridgeScan": {}
}{
"statusCode": 400,
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters",
"timestamp": "2026-05-13T18:00:00.000Z",
"details": {
"message": [
"One or more request parameters are invalid."
]
},
"path": "/v1/..."
}{
"statusCode": 429,
"code": "RATE_LIMIT",
"message": "Rate limit exceeded. Please try again later.",
"details": {
"message": "Rate limit exceeded. Please try again later."
},
"timestamp": "2026-05-15T16:58:45.603Z",
"path": "/v1/advanced/stepTransaction"
}Use this endpoint to turn one selected advanced route step into executable transaction data.
Headers
Optional API key for higher rate limits and fee rules.
Body
application/json
Response
Populated advanced step with executable transaction data.
Available options:
swap, bridge Example:
"RELAY"
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Estimated result for this route step. Treat it as planning data; call POST /v1/advanced/stepTransaction before execution.
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Executable transaction payload returned on a populated step from POST /v1/advanced/stepTransaction.
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Bridge tracking metadata returned when the selected bridge adapter provides it.
⌘I