@windstack/vexanium

Standard Vexanium provider client, discovery helpers, session sync, and VSR utilities for Vexanium dApps.

This package is for dApps. Wallets such as Wisp Wallet implement the standard provider at window.vexanium; dApps use this package to connect, restore sessions, create VSR payloads, and request signatures.

Install

npm install @windstack/core @windstack/vexanium

Version

Current release: 0.2.0.

Provider model

window.vexanium

Methods:

| Method | Purpose | |---|---| | vex_requestAccounts | Request account permission from a Vexanium wallet. | | vex_getAccounts | Read authorized accounts for the current origin without prompting. | | vex_getChain | Read the active Vexanium chain id. | | vex_signingRequest | Send a VSR for signature and optional broadcast. | | vex_signMessage | Request a message signature. | | vex_signDigest | Request a digest signature. | | vex_signTransaction | Request a serialized or packed transaction signature. | | vex_disconnect | Revoke the current dApp session/origin permission. |

Events:

connect
disconnect
accountsChanged
chainChanged
message

Standard provider guard

Windstack exposes one canonical guard for all Vexanium-compatible wallets:

import { isVexaniumProvider } from '@windstack/vexanium';

if (isVexaniumProvider(window.vexanium)) {
  const accounts = await window.vexanium.request({ method: 'vex_getAccounts' });
}

There is no brand-specific provider guard. Wisp Wallet implements the same standard Vexanium provider shape as any future compatible wallet. Wallet identity belongs in provider metadata, not in a separate public guard.

Vexanium mainnet

import { VEXANIUM_MAINNET_CHAIN_ID, VEXANIUM_MAINNET_SCOPE } from '@windstack/vexanium';

VEXANIUM_MAINNET_CHAIN_ID = f9f432b1851b5c179d2091a96f593aaed50ec7466b74f89301f957a83e56ce1f
VEXANIUM_MAINNET_SCOPE    = antelope:f9f432b1851b5c179d2091a96f593aa

Connect and restore

Use getAccounts() on page load. It restores an existing approved session without showing an approval sheet.

import { VEXANIUM_MAINNET_CHAIN_ID, createVexaniumClient } from '@windstack/vexanium';

const client = await createVexaniumClient({
  dapp: {
    name: 'Wind Explorer',
    url: 'https://explorer.windcrypto.com',
    icon: 'https://explorer.windcrypto.com/icon-128.png',
    description: 'Vexanium blockchain explorer.',
  },
});

let accounts = await client.getAccounts();

if (accounts.length === 0) {
  accounts = await client.connect({ chainId: VEXANIUM_MAINNET_CHAIN_ID });
}

console.log(accounts[0]);
console.log(client.getSession());

Sign messages, digests, and transactions

await client.signMessage('hello', 'alice@active');
await client.signDigest('0x0123456789abcdef', 'alice@active');
await client.signTransaction({
  chainId: VEXANIUM_MAINNET_CHAIN_ID,
  serializedTransaction: '...',
  account: 'alice@active',
});

Create a VSR

VSR means Vexanium Signing Request. It is the public Vexanium wallet signing-request name for a request created with @wharfkit/signing-request.

import { VEXANIUM_MAINNET_CHAIN_ID, createVsr } from '@windstack/vexanium';

const vsr = await createVsr({
  action: {
    account: 'vex.token',
    name: 'transfer',
    authorization: [
      { actor: 'alice', permission: 'active' },
    ],
    data: {
      from: 'alice',
      to: 'bob',
      quantity: '1.0000 VEX',
      memo: '',
    },
  },
  chainId: VEXANIUM_MAINNET_CHAIN_ID,
  broadcast: true,
});

Sign a VSR

const result = await client.signVsr({
  vsr,
  broadcast: true,
});

console.log(result.transactionId);
console.log(result.signatures);

If the dApp has an active session, signVsr() sends the stored sessionId. The wallet reads dApp metadata from the approved session and shows only the transaction approval.

Revoke/disconnect sync

createVexaniumClient() keeps the SDK session aligned with provider state by default. It listens to provider events and silently re-checks vex_getAccounts when the browser window regains focus or the document becomes visible again.

const client = await createVexaniumClient({ dapp });

const unsubscribe = client.subscribeSession(({ accounts, session, reason }) => {
  if (accounts.length === 0) {
    localStorage.removeItem('vexanium.wallet');
    queryClient.removeQueries({ queryKey: ['wallet'] });
    return;
  }

  console.log('Vexanium session updated', reason, session);
});

unsubscribe();
client.destroy();

Low-level events are also normalized by the client:

client.on('accountsChanged', (accounts) => {
  if (accounts.length === 0) {
    // Wallet disconnected or origin permission revoked.
  }
});

client.on('disconnect', () => {
  // Clear dApp wallet state.
});

You can opt out of automatic sync when you need a manually controlled lifecycle:

const client = await createVexaniumClient({ dapp, autoSync: false });
await client.syncAccounts();

ABI cache

import { createAbiCache } from '@windstack/vexanium';

const abiProvider = createAbiCache(apiClient);

This is a thin helper over @wharfkit/abicache. Import WharfKit primitives directly when your dApp needs APIClient, Action, Transaction, PermissionLevel, or SigningRequest.

Provider compatibility boundary

@windstack/vexanium is a dApp SDK, not a wallet runtime. It must not compete with any wallet for ownership of injected globals.

Scope

This package does not define a custom Antelope transaction format. It uses WharfKit for signing requests, Antelope types, ABI lookup, and serialization.

License

MIT © 2026 PT WIND KRIPTOGRAFI TEKNOLOGI