Create vault | Hyperliquid exchange

Create a new vault on Hyperliquid. Returns the new vault address. On Hyperliquid exchange.

POST /exchange

Create vault

cURL

curl --request POST \
  --url https://api.hyperliquid.xyz/exchange \
  --header 'Content-Type: application/json' \
  --data '
{
  "action": {
    "type": "createVault",
    "name": "My vault",
    "description": "A vault for copy trading",
    "initialUsd": 100000000,
    "nonce": 1705234567890
  },
  "nonce": 1705234567890,
  "signature": {
    "r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
    "s": "0xfedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
    "v": 27
  }
}
'

import requests

url = "https://api.hyperliquid.xyz/exchange"

payload = {
    "action": {
        "type": "createVault",
        "name": "My vault",
        "description": "A vault for copy trading",
        "initialUsd": 100000000,
        "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: 'createVault',
      name: 'My vault',
      description: 'A vault for copy trading',
      initialUsd: 100000000,
      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' => 'createVault',
        'name' => 'My vault',
        'description' => 'A vault for copy trading',
        'initialUsd' => 100000000,
        '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\": \"createVault\",\n    \"name\": \"My vault\",\n    \"description\": \"A vault for copy trading\",\n    \"initialUsd\": 100000000,\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\": \"createVault\",\n    \"name\": \"My vault\",\n    \"description\": \"A vault for copy trading\",\n    \"initialUsd\": 100000000,\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\": \"createVault\",\n    \"name\": \"My vault\",\n    \"description\": \"A vault for copy trading\",\n    \"initialUsd\": 100000000,\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

200

{
  "status": "ok",
  "response": {
    "type": "createVault",
    "data": "0x1719884eb866cb12b2287399b15f7db5e7d775ea"
  }
}

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.

The createVault action creates a new vault. On success the response includes the address of the newly created vault.

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Parameters

Required parameters

• action (object, required) — The create-vault action:
  • type (string) — Must be "createVault".
  • name (string) — Vault name (3-50 characters).
  • description (string) — Vault description (10-250 characters).
  • initialUsd (number) — Initial balance as a USD float multiplied by 1e6 (minimum 100 USD, i.e. 100000000).
  • 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.

Optional parameters

• expiresAfter (number, optional) — Timestamp in milliseconds after which the request is rejected.

Returns

Returns an object with the action status:

• status — "ok" if the request was processed.
• response — Contains type "createVault" and data, the address of the new vault.

Example request

cURL

curl -X POST https://api.hyperliquid.xyz/exchange \
  -H "Content-Type: application/json" \
  -d '{
    "action": {
      "type": "createVault",
      "name": "My vault",
      "description": "A vault for copy trading",
      "initialUsd": 100000000,
      "nonce": 1234567890123
    },
    "nonce": 1234567890123,
    "signature": {...}
  }'

# Note: the official hyperliquid-python-sdk does not expose a createVault helper
# yet, so build and post the signed action directly.
from hyperliquid.exchange import Exchange
from hyperliquid.utils import constants
from hyperliquid.utils.signing import sign_l1_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": "createVault",
    "name": "My vault",
    "description": "A vault for copy trading",
    "initialUsd": 100000000,  # 100 USD * 1e6
    "nonce": timestamp,
}
signature = sign_l1_action(
    wallet,
    action,
    None,  # vault_address
    timestamp,
    None,  # expires_after
    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 });

const result = await exchange.createVault({
  name: "My vault",
  description: "A vault for copy trading",
  initialUsd: 100000000, // 100 USD * 1e6
});

console.log(result); // response.data is the new vault address

Response example

{
  "status": "ok",
  "response": {
    "type": "createVault",
    "data": "0x1719884eb866cb12b2287399b15f7db5e7d775ea"
  }
}

Use cases

• Launch a vault — Open a vault others can deposit into and follow
• Copy trading — Let depositors mirror your strategy
• Capital pooling — Aggregate capital under a single managed account

Body

application/json

action · object · required

Show child attributes

nonce · integer · required

Current timestamp in milliseconds

signature · object · required

EIP-712 signature of the action with r, s, v components

Show child attributes

expiresAfter · integer

Timestamp in milliseconds after which the request is rejected (optional)

Response

200 - application/json

Create vault result, including the new vault address

status · string

Request status

response · object

Show child attributes