Kasperia SDK

Kasperia SDK is a lightweight TypeScript/JavaScript library for interacting with Kasperia blockchain transactions and scripts.
It provides essential utilities and abstractions for building, signing, and managing transactions.

This package exposes only the core modules:

• tx/index — Transaction utilities and helpers
• tx/script/index — Script op-codes and related functions

Other internal files and helpers are intentionally hidden from external usage.

Installation

Using npm:

npm install kasperia-sdk

Usage

Importing transactions utilities

import { createTransaction, PaymentOutput } from "kasperia-sdk/tx";

// Example: create a simple payment transaction
const output = new PaymentOutput("address_here", 100000n);
const tx = createTransaction([output], "change_address_here");
console.log(tx);

Importing script op-codes

import { OP_DUP, OP_HASH160, OP_EQUALVERIFY, OP_CHECKSIG } from "kasperia-sdk/tx/script";

// Example: build a simple P2PKH script
const script = [OP_DUP, OP_HASH160, "pubKeyHash", OP_EQUALVERIFY, OP_CHECKSIG];
console.log(script);

Features

• Fully written in TypeScript with type definitions included
• Minimal and focused API surface — only exposes essential modules
• Supports transaction creation, signing, and script handling
• Easily integrates into Node.js and browser projects

Contributing

• Contributions and issues are welcome! Please open a GitHub issue or pull request.