@kasplex/kiwi-web

Kasplex Wallet SDK for web - Kiwi

**Kasplex Wallet SDK for web - Kasplex in Wallet Integration (Kiwi) is a powerful and easy-to-use SDK designed to simplify the management of Kaspa wallet assets. It provides seamless integration with Kaspa nodes, KRC20 tokens, and essential wallet functionalities, enabling developers to build robust Kaspa-based applications effortlessly.

Features

• Mnemonic Support: Generate and restore wallets securely using industry-standard mnemonics.
• Wallet Generation & Derivation: Create hierarchical deterministic (HD) wallets and derive multiple addresses.
• KRC20 Protocol Implementation & API Integration: Easily interact with KRC20 tokens using built-in API functions.
• Kaspa API & Node Connectivity: Connect to Kaspa nodes for real-time blockchain data and transaction processing.
• Multi-Signature Wallet Support: Implement enhanced security with multi-signature wallet functionality.
• Message Subscription: Subscribe to blockchain events, transaction updates, and real-time notifications.

Installation

Node.js Version Requirement: This SDK requires Node.js version 20.13.1 or higher. You can check your Node.js version by running:

node -v

Getting Started

To integrate Kasplex Wallet SDK - Kiwi into your project, follow these steps:

• Install the SDK:

  npm install @kasplex/kiwi-web
  

• Set up networkType and init rpc client for use:

  import { Kiwi, Rpc,  Wasm, initialize } from '@kasplex/kiwi-web'
  
  // Initialize WASM
  // ⚠️ The wasm file MUST be from kaspa-wasm v1.1.0
  // You can find `kaspa_bg.wasm` in:
  //   node_modules/@kasplex/kiwi-web/dist/kaspa_bg.wasm
  //
  // In browser environments, the wasm file should be copied
  // to your project's public directory and referenced by URL.
  // The path must be publicly accessible and served with `application/wasm` MIME type.
  await initialize('/wasm/kaspa_bg.wasm')
  
  // Set network type (Mainnet or Testnet)
  await Kiwi.setNetwork(Wasm.NetworkType.Mainnet)
  // Use NetworkType.Testnet for testnet
  // await Kiwi.setNetwork(Wasm.NetworkType.Testnet)
  
  // Initialize and connect RPC client (optional but required for node queries)
  const rpc = Rpc.setInstance(Wasm.NetworkType.Mainnet)
  await rpc.connect()
  

• Generate a new wallet:

  import { Mnemonic, Wallet } from "@kasplex/kiwi-web";
  const mnemonic = Mnemonic.random(12);
  console.log("Generated Mnemonic:", mnemonic);
  let wallet = Wallet.fromMnemonic(mnemonic)
  

• KAS Transfer:

  import { KaspaTransaction } from "@kasplex/kiwi-web";
  const resp = await KaspaTransaction.transferKas(privateKey, toAddress, 130000000n, 10000n)
  

• KRC20:

  import { Enum, Utils, KRC20 } from "@kasplex/kiwi-web";
  const krc20data = Utils.createKrc20Data({
     p: "krc-20",
     op: Enum.OP.Mint,
     tick: 'TCKFE',
  })
  let txid = await KRC20.mint(_privateKey, krc20data, 100000n)
  console.log("Mint txid", txid)
  

• Browser Extension Integration:

  import { BrowerWallet, WalletApi } from "@kasplex/kiwi-web";
  
  const walletList = await BrowerWallet.getBrowerWalletList();
  console.log("walletList", walletList);
  
  // Create and initialize wallet instance
  const wallet = await WalletApi.create('kasware');
  
  // Request account access
  const accounts = await wallet.requestAccounts();
  console.log('Connected accounts:', accounts);
  
  // Get wallet balance
  const balance = await wallet.getBalance();
  console.log('Wallet balance:', balance);
  

  For detailed browser extension integration guide, please refer to our Browser Extension Documentation

WASM Initialization (Web)

The Kiwi Web SDK depends on a WebAssembly module (kaspa_bg.wasm). You must initialize it once before using any wallet, RPC, or transaction-related functionality.

WASM version requirement

🔒 WASM Version Compatibility

This SDK is tested and compatible only with kaspa-wasm@1.1.0. ❌ 0.x versions are not supported ❌ Mixing JS and WASM from different versions will cause runtime errors ✅ Recommended: kaspa-wasm@1.1.0-rc.2

💡 Tip: If you encounter errors like expected magic word 00 61 73 6d or __wbindgen_closure_wrapper please double-check your WASM version and loading path.

More Examples

• For more detailed usage examples, check out our Examples Directory
• For usage of node, check out our Kiwi for NODE

Contribution

We welcome contributions from the community! Feel free to submit issues, feature requests, or pull requests to improve the Kasplex Wallet SDK - Kiwi.

License

This project is licensed under the MIT License.

🚀 Start building with Kasplex Wallet SDK - Kiwi today and unlock the full potential of the Kaspa ecosystem!