Calculate Best Path Quote

curl --request POST \
  --url https://ws.kuru.io/api/quote \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "userAddress": "0x1234567890abcdef1234567890abcdef12345678",
  "tokenIn": "0x0000000000000000000000000000000000000000",
  "tokenOut": "0x754704bc059f8c67012fed69bc8a327a5aafb603",
  "amount": "1000000000000000000",
  "slippageTolerance": 50,
  "autoSlippage": true,
  "referrerAddress": "0x5678567856785678567856785678567856785678",
  "referrerFeeBps": 25
}
'

import requests

url = "https://ws.kuru.io/api/quote"

payload = {
    "userAddress": "0x1234567890abcdef1234567890abcdef12345678",
    "tokenIn": "0x0000000000000000000000000000000000000000",
    "tokenOut": "0x754704bc059f8c67012fed69bc8a327a5aafb603",
    "amount": "1000000000000000000",
    "slippageTolerance": 50,
    "autoSlippage": True,
    "referrerAddress": "0x5678567856785678567856785678567856785678",
    "referrerFeeBps": 25
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    userAddress: '0x1234567890abcdef1234567890abcdef12345678',
    tokenIn: '0x0000000000000000000000000000000000000000',
    tokenOut: '0x754704bc059f8c67012fed69bc8a327a5aafb603',
    amount: '1000000000000000000',
    slippageTolerance: 50,
    autoSlippage: true,
    referrerAddress: '0x5678567856785678567856785678567856785678',
    referrerFeeBps: 25
  })
};

fetch('https://ws.kuru.io/api/quote', 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://ws.kuru.io/api/quote",
  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([
    'userAddress' => '0x1234567890abcdef1234567890abcdef12345678',
    'tokenIn' => '0x0000000000000000000000000000000000000000',
    'tokenOut' => '0x754704bc059f8c67012fed69bc8a327a5aafb603',
    'amount' => '1000000000000000000',
    'slippageTolerance' => 50,
    'autoSlippage' => true,
    'referrerAddress' => '0x5678567856785678567856785678567856785678',
    'referrerFeeBps' => 25
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://ws.kuru.io/api/quote"

	payload := strings.NewReader("{\n  \"userAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"tokenIn\": \"0x0000000000000000000000000000000000000000\",\n  \"tokenOut\": \"0x754704bc059f8c67012fed69bc8a327a5aafb603\",\n  \"amount\": \"1000000000000000000\",\n  \"slippageTolerance\": 50,\n  \"autoSlippage\": true,\n  \"referrerAddress\": \"0x5678567856785678567856785678567856785678\",\n  \"referrerFeeBps\": 25\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	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://ws.kuru.io/api/quote")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"userAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"tokenIn\": \"0x0000000000000000000000000000000000000000\",\n  \"tokenOut\": \"0x754704bc059f8c67012fed69bc8a327a5aafb603\",\n  \"amount\": \"1000000000000000000\",\n  \"slippageTolerance\": 50,\n  \"autoSlippage\": true,\n  \"referrerAddress\": \"0x5678567856785678567856785678567856785678\",\n  \"referrerFeeBps\": 25\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://ws.kuru.io/api/quote")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"userAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"tokenIn\": \"0x0000000000000000000000000000000000000000\",\n  \"tokenOut\": \"0x754704bc059f8c67012fed69bc8a327a5aafb603\",\n  \"amount\": \"1000000000000000000\",\n  \"slippageTolerance\": 50,\n  \"autoSlippage\": true,\n  \"referrerAddress\": \"0x5678567856785678567856785678567856785678\",\n  \"referrerFeeBps\": 25\n}"

response = http.request(request)
puts response.read_body

{
  "type": "swap_calculation",
  "status": "success",
  "output": "950000000000000000",
  "path": {},
  "buildResponse": {},
  "gasPrices": {}
}

POST

api

quote

Calculate Best Path Quote

curl --request POST \
  --url https://ws.kuru.io/api/quote \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "userAddress": "0x1234567890abcdef1234567890abcdef12345678",
  "tokenIn": "0x0000000000000000000000000000000000000000",
  "tokenOut": "0x754704bc059f8c67012fed69bc8a327a5aafb603",
  "amount": "1000000000000000000",
  "slippageTolerance": 50,
  "autoSlippage": true,
  "referrerAddress": "0x5678567856785678567856785678567856785678",
  "referrerFeeBps": 25
}
'

import requests

url = "https://ws.kuru.io/api/quote"

payload = {
    "userAddress": "0x1234567890abcdef1234567890abcdef12345678",
    "tokenIn": "0x0000000000000000000000000000000000000000",
    "tokenOut": "0x754704bc059f8c67012fed69bc8a327a5aafb603",
    "amount": "1000000000000000000",
    "slippageTolerance": 50,
    "autoSlippage": True,
    "referrerAddress": "0x5678567856785678567856785678567856785678",
    "referrerFeeBps": 25
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    userAddress: '0x1234567890abcdef1234567890abcdef12345678',
    tokenIn: '0x0000000000000000000000000000000000000000',
    tokenOut: '0x754704bc059f8c67012fed69bc8a327a5aafb603',
    amount: '1000000000000000000',
    slippageTolerance: 50,
    autoSlippage: true,
    referrerAddress: '0x5678567856785678567856785678567856785678',
    referrerFeeBps: 25
  })
};

fetch('https://ws.kuru.io/api/quote', 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://ws.kuru.io/api/quote",
  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([
    'userAddress' => '0x1234567890abcdef1234567890abcdef12345678',
    'tokenIn' => '0x0000000000000000000000000000000000000000',
    'tokenOut' => '0x754704bc059f8c67012fed69bc8a327a5aafb603',
    'amount' => '1000000000000000000',
    'slippageTolerance' => 50,
    'autoSlippage' => true,
    'referrerAddress' => '0x5678567856785678567856785678567856785678',
    'referrerFeeBps' => 25
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://ws.kuru.io/api/quote"

	payload := strings.NewReader("{\n  \"userAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"tokenIn\": \"0x0000000000000000000000000000000000000000\",\n  \"tokenOut\": \"0x754704bc059f8c67012fed69bc8a327a5aafb603\",\n  \"amount\": \"1000000000000000000\",\n  \"slippageTolerance\": 50,\n  \"autoSlippage\": true,\n  \"referrerAddress\": \"0x5678567856785678567856785678567856785678\",\n  \"referrerFeeBps\": 25\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	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://ws.kuru.io/api/quote")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"userAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"tokenIn\": \"0x0000000000000000000000000000000000000000\",\n  \"tokenOut\": \"0x754704bc059f8c67012fed69bc8a327a5aafb603\",\n  \"amount\": \"1000000000000000000\",\n  \"slippageTolerance\": 50,\n  \"autoSlippage\": true,\n  \"referrerAddress\": \"0x5678567856785678567856785678567856785678\",\n  \"referrerFeeBps\": 25\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://ws.kuru.io/api/quote")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"userAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"tokenIn\": \"0x0000000000000000000000000000000000000000\",\n  \"tokenOut\": \"0x754704bc059f8c67012fed69bc8a327a5aafb603\",\n  \"amount\": \"1000000000000000000\",\n  \"slippageTolerance\": 50,\n  \"autoSlippage\": true,\n  \"referrerAddress\": \"0x5678567856785678567856785678567856785678\",\n  \"referrerFeeBps\": 25\n}"

response = http.request(request)
puts response.read_body

{
  "type": "swap_calculation",
  "status": "success",
  "output": "950000000000000000",
  "path": {},
  "buildResponse": {},
  "gasPrices": {}
}

Authorizations

Authorization

string

header

required

JWT token obtained from /api/generate-token endpoint

Body

application/json

Option 1
Option 2

autoSlippage

enum<boolean>

required

Whether to use automatic slippage calculation

Available options:

true

Example:

true

userAddress

string

required

Ethereum address of the user

Pattern: ^0x[a-fA-F0-9]{40}$

Example:

"0x1234567890abcdef1234567890abcdef12345678"

tokenIn

string

required

Address of the input token

Pattern: ^0x[a-fA-F0-9]{40}$

Example:

"0xA0b86a33E6441051686442d3a1BA4Fab4F85d2b2"

tokenOut

string

required

Address of the output token

Pattern: ^0x[a-fA-F0-9]{40}$

Example:

"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"

amount

string

required

Amount to swap (in wei for tokens with 18 decimals)

Example:

"1000000000000000000"

slippageTolerance

integer<uint16>

Slippage tolerance in basis points (e.g., 50 = 0.5%)

Required range: 1 <= x <= 10000

Example:

50

referrerAddress

string

Optional referrer address for fee sharing

Pattern: ^0x[a-fA-F0-9]{40}$

Example:

"0x5678567856785678567856785678567856785678"

referrerFeeBps

integer<uint16>

Optional referrer fee in basis points

Required range: 0 <= x <= 10000

Example:

25

Response

Successfully calculated best path

type

string

Response type identifier

Example:

"swap_calculation"

status

enum<string>

Status of the calculation

Available options:

success,

error

Example:

"success"

output

string

Expected output amount

Example:

"950000000000000000"

message

string

Status or error message

path

object

Swap route information (tx_builder.SwapRoute)

buildResponse

object

Transaction build response (tx_builder.BuildResponse)

gasPrices

object

Gas price information (swapcalc.GasPriceInfo)

Generate JWT Token Architecture Overview

⌘I

Kuru Exchange API

Kuru Exchange WebSocket Streams

TypeScript SDK

Python SDK

Kuru Flow API

Smart Contracts

Calculate Best Path Quote

Authorizations

Body

Response