Approve builder fee
curl --request POST \
--url https://api.hyperliquid.xyz/exchange \
--header 'Content-Type: application/json' \
--data '
{
"action": {
"type": "approveBuilderFee",
"hyperliquidChain": "Mainnet",
"signatureChainId": "0xa4b1",
"maxFeeRate": "0.001%",
"builder": "0x1234567890abcdef1234567890abcdef12345678",
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x0000000000000000000000000000000000000000000000000000000000000000",
"s": "0x0000000000000000000000000000000000000000000000000000000000000000",
"v": 27
},
"vaultAddress": null
}
'import requests
url = "https://api.hyperliquid.xyz/exchange"
payload = {
"action": {
"type": "approveBuilderFee",
"hyperliquidChain": "Mainnet",
"signatureChainId": "0xa4b1",
"maxFeeRate": "0.001%",
"builder": "0x1234567890abcdef1234567890abcdef12345678",
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x0000000000000000000000000000000000000000000000000000000000000000",
"s": "0x0000000000000000000000000000000000000000000000000000000000000000",
"v": 27
},
"vaultAddress": None
}
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({
action: {
type: 'approveBuilderFee',
hyperliquidChain: 'Mainnet',
signatureChainId: '0xa4b1',
maxFeeRate: '0.001%',
builder: '0x1234567890abcdef1234567890abcdef12345678',
nonce: 1705234567890
},
nonce: 1705234567890,
signature: {
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
v: 27
},
vaultAddress: null
})
};
fetch('https://api.hyperliquid.xyz/exchange', 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.hyperliquid.xyz/exchange",
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([
'action' => [
'type' => 'approveBuilderFee',
'hyperliquidChain' => 'Mainnet',
'signatureChainId' => '0xa4b1',
'maxFeeRate' => '0.001%',
'builder' => '0x1234567890abcdef1234567890abcdef12345678',
'nonce' => 1705234567890
],
'nonce' => 1705234567890,
'signature' => [
'r' => '0x0000000000000000000000000000000000000000000000000000000000000000',
's' => '0x0000000000000000000000000000000000000000000000000000000000000000',
'v' => 27
],
'vaultAddress' => null
]),
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.hyperliquid.xyz/exchange"
payload := strings.NewReader("{\n \"action\": {\n \"type\": \"approveBuilderFee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"signatureChainId\": \"0xa4b1\",\n \"maxFeeRate\": \"0.001%\",\n \"builder\": \"0x1234567890abcdef1234567890abcdef12345678\",\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"s\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"v\": 27\n },\n \"vaultAddress\": null\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.hyperliquid.xyz/exchange")
.header("Content-Type", "application/json")
.body("{\n \"action\": {\n \"type\": \"approveBuilderFee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"signatureChainId\": \"0xa4b1\",\n \"maxFeeRate\": \"0.001%\",\n \"builder\": \"0x1234567890abcdef1234567890abcdef12345678\",\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"s\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"v\": 27\n },\n \"vaultAddress\": null\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.hyperliquid.xyz/exchange")
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 \"action\": {\n \"type\": \"approveBuilderFee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"signatureChainId\": \"0xa4b1\",\n \"maxFeeRate\": \"0.001%\",\n \"builder\": \"0x1234567890abcdef1234567890abcdef12345678\",\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"s\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"v\": 27\n },\n \"vaultAddress\": null\n}"
response = http.request(request)
puts response.read_body{
"status": "<string>",
"response": {}
}Hyperliquid node API
approveBuilderFee | Hyperliquid exchange
Approves a builder fee for a specific builder address. This allows the builder to charge fees on orders placed through their interface.
POST
/
exchange
Approve builder fee
curl --request POST \
--url https://api.hyperliquid.xyz/exchange \
--header 'Content-Type: application/json' \
--data '
{
"action": {
"type": "approveBuilderFee",
"hyperliquidChain": "Mainnet",
"signatureChainId": "0xa4b1",
"maxFeeRate": "0.001%",
"builder": "0x1234567890abcdef1234567890abcdef12345678",
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x0000000000000000000000000000000000000000000000000000000000000000",
"s": "0x0000000000000000000000000000000000000000000000000000000000000000",
"v": 27
},
"vaultAddress": null
}
'import requests
url = "https://api.hyperliquid.xyz/exchange"
payload = {
"action": {
"type": "approveBuilderFee",
"hyperliquidChain": "Mainnet",
"signatureChainId": "0xa4b1",
"maxFeeRate": "0.001%",
"builder": "0x1234567890abcdef1234567890abcdef12345678",
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x0000000000000000000000000000000000000000000000000000000000000000",
"s": "0x0000000000000000000000000000000000000000000000000000000000000000",
"v": 27
},
"vaultAddress": None
}
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({
action: {
type: 'approveBuilderFee',
hyperliquidChain: 'Mainnet',
signatureChainId: '0xa4b1',
maxFeeRate: '0.001%',
builder: '0x1234567890abcdef1234567890abcdef12345678',
nonce: 1705234567890
},
nonce: 1705234567890,
signature: {
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
v: 27
},
vaultAddress: null
})
};
fetch('https://api.hyperliquid.xyz/exchange', 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.hyperliquid.xyz/exchange",
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([
'action' => [
'type' => 'approveBuilderFee',
'hyperliquidChain' => 'Mainnet',
'signatureChainId' => '0xa4b1',
'maxFeeRate' => '0.001%',
'builder' => '0x1234567890abcdef1234567890abcdef12345678',
'nonce' => 1705234567890
],
'nonce' => 1705234567890,
'signature' => [
'r' => '0x0000000000000000000000000000000000000000000000000000000000000000',
's' => '0x0000000000000000000000000000000000000000000000000000000000000000',
'v' => 27
],
'vaultAddress' => null
]),
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.hyperliquid.xyz/exchange"
payload := strings.NewReader("{\n \"action\": {\n \"type\": \"approveBuilderFee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"signatureChainId\": \"0xa4b1\",\n \"maxFeeRate\": \"0.001%\",\n \"builder\": \"0x1234567890abcdef1234567890abcdef12345678\",\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"s\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"v\": 27\n },\n \"vaultAddress\": null\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.hyperliquid.xyz/exchange")
.header("Content-Type", "application/json")
.body("{\n \"action\": {\n \"type\": \"approveBuilderFee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"signatureChainId\": \"0xa4b1\",\n \"maxFeeRate\": \"0.001%\",\n \"builder\": \"0x1234567890abcdef1234567890abcdef12345678\",\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"s\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"v\": 27\n },\n \"vaultAddress\": null\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.hyperliquid.xyz/exchange")
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 \"action\": {\n \"type\": \"approveBuilderFee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"signatureChainId\": \"0xa4b1\",\n \"maxFeeRate\": \"0.001%\",\n \"builder\": \"0x1234567890abcdef1234567890abcdef12345678\",\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"s\": \"0x0000000000000000000000000000000000000000000000000000000000000000\",\n \"v\": 27\n },\n \"vaultAddress\": null\n}"
response = http.request(request)
puts response.read_body{
"status": "<string>",
"response": {}
}You can only use this endpoint on the official Hyperliquid public API. It is not available through Chainstack, as the open-source node implementation does not support it yet. See Hyperliquid methods for the full availability breakdown.
This endpoint requires signature authentication. See our comprehensive Authentication via Signatures guide for implementation details.
Get your own node endpoint todayStart for free and get your app to production levels immediately. No credit card required.You can sign up with your GitHub, X, Google, or Microsoft account.
Parameters
Required parameters
action(object, required) — The action object containing:type(string) — Must be"approveBuilderFee"hyperliquidChain(string) — Chain identifiermaxFeeRate(string) — Maximum fee rate the builder can chargebuilder(string) — Builder address to approvenonce(integer) — Unique nonce
nonce(number, required) — Current timestamp in milliseconds (must be recent)signature(object, required) — EIP-712 signature of the action
Optional parameters
vaultAddress(string, optional) — Address when trading on behalf of a vault or subaccount
Returns
Returns an object with the action status:status—"ok"if request processedresponse— Contains action result data
Example request
curl -X POST https://api.hyperliquid.xyz/exchange \
-H "Content-Type: application/json" \
-d '{
"action": {"type": "approveBuilderFee"},
"nonce": 1234567890123,
"signature": {...}
}'
import eth_account
from hyperliquid.exchange import Exchange
from hyperliquid.utils import constants
# Wallet that signs the EIP-712 action
wallet = eth_account.Account.from_key("YOUR_PRIVATE_KEY")
# Public Hyperliquid API (this method is not available through Chainstack)
exchange = Exchange(wallet, constants.MAINNET_API_URL)
result = exchange.approve_builder_fee(
builder="0x0000000000000000000000000000000000000000",
max_fee_rate="0.01%",
)
print(result)
import * as hl from "@nktkas/hyperliquid";
import { privateKeyToAccount } from "viem/accounts";
// Wallet that signs the EIP-712 action
const wallet = privateKeyToAccount("0x..."); // viem or ethers
// Public Hyperliquid API (this method is not available through Chainstack)
const transport = new hl.HttpTransport();
const client = new hl.ExchangeClient({ transport, wallet });
const result = await client.approveBuilderFee({
maxFeeRate: "0.01%",
builder: "0x0000000000000000000000000000000000000000",
});
console.log(result);
Use case
- Approve builder fee — Approves a builder fee for a specific builder address. This allows the builder to charge fees on orders placed through their interface.
Always ensure your system clock is synchronized. Nonce must be within a reasonable time window of the current server time or the request will be rejected.
Body
application/json
Last modified on June 24, 2026
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