Link a staking user (initiate or finalize)
curl --request POST \
--url https://api.hyperliquid.xyz/exchange \
--header 'Content-Type: application/json' \
--data '
{
"action": {
"type": "linkStakingUser",
"signatureChainId": "0x66eee",
"hyperliquidChain": "Mainnet",
"user": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568",
"isFinalize": false,
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"s": "0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
"v": 27
}
}
'import requests
url = "https://api.hyperliquid.xyz/exchange"
payload = {
"action": {
"type": "linkStakingUser",
"signatureChainId": "0x66eee",
"hyperliquidChain": "Mainnet",
"user": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568",
"isFinalize": False,
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"s": "0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
"v": 27
}
}
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: 'linkStakingUser',
signatureChainId: '0x66eee',
hyperliquidChain: 'Mainnet',
user: '0x1442ad477ded1b0028b57621aa7b6f7eadb8f568',
isFinalize: false,
nonce: 1705234567890
},
nonce: 1705234567890,
signature: {
r: '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef',
s: '0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321',
v: 27
}
})
};
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' => 'linkStakingUser',
'signatureChainId' => '0x66eee',
'hyperliquidChain' => 'Mainnet',
'user' => '0x1442ad477ded1b0028b57621aa7b6f7eadb8f568',
'isFinalize' => false,
'nonce' => 1705234567890
],
'nonce' => 1705234567890,
'signature' => [
'r' => '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef',
's' => '0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321',
'v' => 27
]
]),
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\": \"linkStakingUser\",\n \"signatureChainId\": \"0x66eee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"user\": \"0x1442ad477ded1b0028b57621aa7b6f7eadb8f568\",\n \"isFinalize\": false,\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\",\n \"s\": \"0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321\",\n \"v\": 27\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.hyperliquid.xyz/exchange")
.header("Content-Type", "application/json")
.body("{\n \"action\": {\n \"type\": \"linkStakingUser\",\n \"signatureChainId\": \"0x66eee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"user\": \"0x1442ad477ded1b0028b57621aa7b6f7eadb8f568\",\n \"isFinalize\": false,\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\",\n \"s\": \"0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321\",\n \"v\": 27\n }\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\": \"linkStakingUser\",\n \"signatureChainId\": \"0x66eee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"user\": \"0x1442ad477ded1b0028b57621aa7b6f7eadb8f568\",\n \"isFinalize\": false,\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\",\n \"s\": \"0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321\",\n \"v\": 27\n }\n}"
response = http.request(request)
puts response.read_body{
"status": "ok",
"response": {
"type": "default"
}
}Hyperliquid node API
Link staking user | Hyperliquid exchange
Link a staking account and a trading account for fee-discount attribution on Hyperliquid. On Hyperliquid exchange.
POST
/
exchange
Link a staking user (initiate or finalize)
curl --request POST \
--url https://api.hyperliquid.xyz/exchange \
--header 'Content-Type: application/json' \
--data '
{
"action": {
"type": "linkStakingUser",
"signatureChainId": "0x66eee",
"hyperliquidChain": "Mainnet",
"user": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568",
"isFinalize": false,
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"s": "0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
"v": 27
}
}
'import requests
url = "https://api.hyperliquid.xyz/exchange"
payload = {
"action": {
"type": "linkStakingUser",
"signatureChainId": "0x66eee",
"hyperliquidChain": "Mainnet",
"user": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568",
"isFinalize": False,
"nonce": 1705234567890
},
"nonce": 1705234567890,
"signature": {
"r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
"s": "0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
"v": 27
}
}
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: 'linkStakingUser',
signatureChainId: '0x66eee',
hyperliquidChain: 'Mainnet',
user: '0x1442ad477ded1b0028b57621aa7b6f7eadb8f568',
isFinalize: false,
nonce: 1705234567890
},
nonce: 1705234567890,
signature: {
r: '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef',
s: '0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321',
v: 27
}
})
};
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' => 'linkStakingUser',
'signatureChainId' => '0x66eee',
'hyperliquidChain' => 'Mainnet',
'user' => '0x1442ad477ded1b0028b57621aa7b6f7eadb8f568',
'isFinalize' => false,
'nonce' => 1705234567890
],
'nonce' => 1705234567890,
'signature' => [
'r' => '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef',
's' => '0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321',
'v' => 27
]
]),
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\": \"linkStakingUser\",\n \"signatureChainId\": \"0x66eee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"user\": \"0x1442ad477ded1b0028b57621aa7b6f7eadb8f568\",\n \"isFinalize\": false,\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\",\n \"s\": \"0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321\",\n \"v\": 27\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.hyperliquid.xyz/exchange")
.header("Content-Type", "application/json")
.body("{\n \"action\": {\n \"type\": \"linkStakingUser\",\n \"signatureChainId\": \"0x66eee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"user\": \"0x1442ad477ded1b0028b57621aa7b6f7eadb8f568\",\n \"isFinalize\": false,\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\",\n \"s\": \"0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321\",\n \"v\": 27\n }\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\": \"linkStakingUser\",\n \"signatureChainId\": \"0x66eee\",\n \"hyperliquidChain\": \"Mainnet\",\n \"user\": \"0x1442ad477ded1b0028b57621aa7b6f7eadb8f568\",\n \"isFinalize\": false,\n \"nonce\": 1705234567890\n },\n \"nonce\": 1705234567890,\n \"signature\": {\n \"r\": \"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\",\n \"s\": \"0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321\",\n \"v\": 27\n }\n}"
response = http.request(request)
puts response.read_body{
"status": "ok",
"response": {
"type": "default"
}
}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.
linkStakingUser action links a staking account and a trading account so that staking is attributed for fee discounts. The link is a two-step flow: the trading user initiates the request (isFinalize: false), then the staking user finalizes the permanent link (isFinalize: true). This is a user-signed EIP-712 action.
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 link-staking-user action:type(string) — Must be"linkStakingUser".signatureChainId(string) — Chain ID in hex used for EIP-712 signing.hyperliquidChain(string) —"Mainnet"or"Testnet".user(string) — Target account address. When the trading user initiates, this is the staking account address; when the staking user finalizes, this is the trading account address.isFinalize(boolean) —falseto initiate (trading user),trueto finalize the permanent link (staking user).nonce(number) — Timestamp in milliseconds, equal to the envelope nonce.
nonce(number, required) — Current timestamp in milliseconds.signature(object, required) — EIP-712 signature of the action.
Returns
Returns an object with the action status:status—"ok"if the request was processed.response— Contains operation details, withtype"default".
Example request
curl -X POST https://api.hyperliquid.xyz/exchange \
-H "Content-Type: application/json" \
-d '{
"action": {
"type": "linkStakingUser",
"signatureChainId": "0x66eee",
"hyperliquidChain": "Mainnet",
"user": "0x0000000000000000000000000000000000000000",
"isFinalize": false,
"nonce": 1234567890123
},
"nonce": 1234567890123,
"signature": {...}
}'
# Note: the official hyperliquid-python-sdk does not expose a linkStakingUser
# helper yet. This is a user-signed (EIP-712) action, so supply its typed-data
# fields and primary type when signing.
from hyperliquid.exchange import Exchange
from hyperliquid.utils import constants
from hyperliquid.utils.signing import sign_user_signed_action, get_timestamp_ms
import eth_account
# Public Hyperliquid mainnet endpoint
wallet = eth_account.Account.from_key("0x...") # your private key
exchange = Exchange(wallet, constants.MAINNET_API_URL)
timestamp = get_timestamp_ms()
action = {
"type": "linkStakingUser",
"signatureChainId": "0x66eee",
"hyperliquidChain": "Mainnet",
"user": "0x0000000000000000000000000000000000000000",
"isFinalize": False,
"nonce": timestamp,
}
payload_types = [
{"name": "hyperliquidChain", "type": "string"},
{"name": "user", "type": "address"},
{"name": "isFinalize", "type": "bool"},
{"name": "nonce", "type": "uint64"},
]
signature = sign_user_signed_action(
wallet,
action,
payload_types,
"HyperliquidTransaction:LinkStakingUser",
exchange.base_url == constants.MAINNET_API_URL,
)
result = exchange._post_action(action, signature, timestamp)
print(result)
import { ExchangeClient, HttpTransport } from "@nktkas/hyperliquid";
import { privateKeyToAccount } from "viem/accounts";
// Public Hyperliquid mainnet endpoint (default transport)
const wallet = privateKeyToAccount("0x..."); // viem or ethers account
const transport = new HttpTransport();
const exchange = new ExchangeClient({ transport, wallet });
// Trading user initiates the link request
const result = await exchange.linkStakingUser({
user: "0x0000000000000000000000000000000000000000",
isFinalize: false,
});
console.log(result);
Response example
{
"status": "ok",
"response": {
"type": "default"
}
}
Use cases
- Attribute staking for fee discounts — Link a staking account to a trading account
- Separate custody and trading — Keep staked funds and trading funds in different accounts
- Two-step linking — Initiate from the trading user, finalize from the staking user
Body
application/json
Last modified on June 24, 2026
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