WindStack SDK

Overview

WindStack is a modular TypeScript SDK for Vexanium applications and reusable blockchain primitives.

For Vexanium applications, @windstack/vexanium provides the primary high-level client for wallet connection, account and contract access, ABI-aware transactions, Vexanium Signing Requests (VSR), explorer routes, and VEX EVM utilities.

Created by Gilang Ramadan. Copyright © 2026 PT WIND KRIPTOGRAFI TEKNOLOGI.

Install

npm install @windstack/vexanium

Use the lower-level packages only when your application needs direct access to a specific primitive such as RPC, ABI serialization, signing requests, sessions, or Antelope transaction handling.

Quick start

import { createVexaniumClient } from "@windstack/vexanium";

const vex = await createVexaniumClient({
  dapp: {
    name: "Example App",
    url: "https://app.example",
    icon: "https://app.example/icon.png",
  },
});

const account = await vex.connectOne();

const result = await vex.transact({
  actions: [
    {
      account: "vex.token",
      name: "transfer",
      data: {
        from: account.actor,
        to: "bob",
        quantity: "1.0000 VEX",
        memo: "Example transfer",
      },
    },
  ],
});

console.log(result.response);

transact() accepts structured action data and handles ABI encoding, wallet authorization, TAPOS preparation, transaction serialization, signing, and optional broadcast.

Multi-action transactions

Pass multiple actions in the same actions array. Action order and authorization are preserved through signing.

await vex.transact({
  actions: [
    {
      account: "vex.token",
      name: "transfer",
      data: {
        from: account.actor,
        to: "bob",
        quantity: "1.0000 VEX",
        memo: "First action",
      },
    },
    {
      account: "vex.token",
      name: "transfer",
      data: {
        from: account.actor,
        to: "bob",
        quantity: "0.5000 VEX",
        memo: "Second action",
      },
    },
  ],
});

Wallets receive the canonical transaction bytes together with the matching structured transaction so every action can be reviewed before approval.

Vexanium Signing Request

Portable signing requests use VSR and the vsr: URI scheme.

const uri = await vex.createSigningRequest({
  broadcast: true,
  actions: [
    {
      account: "vex.token",
      name: "transfer",
      authorization: [{ actor: account.actor, permission: account.permission }],
      data: {
        from: account.actor,
        to: "bob",
        quantity: "1.0000 VEX",
        memo: "VSR example",
      },
    },
  ],
});

const request = vex.parseSigningRequest(uri);

Configure RPC

WindStack includes Vexanium Mainnet defaults. A different trusted Vexanium RPC endpoint can be supplied through the same client API:

const vex = await createVexaniumClient({
  rpcUrl: "https://my-vexanium-rpc.example",
});

The configured RPC is used consistently for account access, contracts, ABI loading, transaction preparation, VSR creation, and broadcasting.

Vexanium Mainnet

Setting	Value
Chain ID	f9f432b1851b5c179d2091a96f593aaed50ec7466b74f89301f957a83e56ce1f
RPC	https://api.windcrypto.com
System contract	vexcore
Native token contract	vex.token
Native symbol and precision	VEX, 4
VEX EVM chain ID	6736 (0x1a50)

Packages

Package	Purpose
@windstack/vexanium	High-level Vexanium client, chain metadata, VSR, explorer and VEX EVM utilities
@windstack/wallet-plugin-wisp	Wisp Wallet integration for @windstack/session
@windstack/session	Wallet session management and signer orchestration
@windstack/antelope	Antelope transaction preparation, TAPOS, signing, broadcast and keosd support
@windstack/contract	ABI-aware contract actions and table queries
@windstack/account	Account, token, resource, governance and permission operations
@windstack/abi	ABI codec, names, assets, symbols and action serialization
@windstack/rpc	Typed Antelope RPC, endpoint verification, finality and history
@windstack/crypto	K1/R1 keys, signatures, verification and recovery
@windstack/core	Shared provider types, exact numeric utilities and AMM math
@windstack/signing-request	VSR encoding, parsing, resolution, inspection and callbacks
@windstack/evm	Generic EVM RPC and wallet-provider utilities
@windstack/solana	Generic Solana browser-wallet provider utilities

Security

WindStack validates chain identity, transaction encoding, wallet capabilities, ABI payloads, signatures, numeric bounds, and other protocol-sensitive inputs at the relevant API boundaries.

Broadcast requests are not automatically retried when submission status is uncertain. Applications should reconcile transaction state before resubmitting.

Runtime

WindStack is ESM-first. Packages that support Node.js require Node.js 20.19 or newer. Browser-facing packages use standard Web APIs, and Node-specific keosd Unix-socket transport is exposed separately.

Documentation

• Vexanium application guide
• Supported capabilities
• VexaniumProvider v1 specification — for wallet and provider implementers
• Release changes
• Package-level API guides under packages/*/README.md

License

MIT License.

Created by Gilang Ramadan. Copyright © 2026 PT WIND KRIPTOGRAFI TEKNOLOGI.