Build Web3 Applications on Selendra

The official Selendra SDK for building decentralized applications on the Selendra blockchain.

SDK Features

• Production Infrastructure - Deployed blockchain network
• Multi-Chain Support - Native Substrate and EVM compatibility (beta)
• Cross-Platform - Web, mobile, and desktop support
• TypeScript and Rust - Multiple language implementations

Quick Start

Package: @selendrajs/sdk

npm install @selendrajs/sdk
npm install @selendrajs/sdk/react

import { SelendraSDK, Network } from '@selendrajs/sdk';

const sdk = new SelendraSDK()
  .withEndpoint('wss://rpc.selendra.org')
  .withNetwork(Network.Selendra);

const account = sdk.createAccount();
const balance = await sdk.getBalance(account.address);

Use Case Categories

DeFi & Financial Services

Blockchain-based financial services and applications.

• Digital Banks - banking with accounts, transfers, payments
• Payment Gateways - Merchant processing and online payments
• Lending Platforms - DeFi lending, borrowing, and yield farming
• Insurance - Decentralized insurance and risk management
• Investment Management - Portfolio tracking and automated investing
• Remittance - Cross-border money transfers
• Currency Exchange - Multi-currency trading platforms

Retail & E-Commerce

Online and offline retail with blockchain integration.

• Online Marketplaces - Multi-vendor trading platforms
• Point of Sale - Blockchain-powered payment terminals
• Supply Chain - Product authenticity and tracking
• Inventory Management - Real-time stock monitoring
• Customer Analytics - Purchase behavior tracking

Multi-Merchant Loyalty Exchanges

Convert loyalty programs into tradable blockchain tokens.

Core Features:

• Point Tokenization - Convert loyalty points to ERC-20 tokens
• Cross-Merchant Trading - Exchange points between different brands
• Secondary Markets - Trade loyalty tokens on DEXs
• Automated Market Making - Liquidity pools for point trading
• Dynamic Exchange Rates - Real-time point valuations
• Tier Management - Multi-tier loyalty with NFT badges
• Enterprise Integration - Connect with existing POS systems

Quick Example:

// Register merchant in exchange
await exchange.registerMerchant({
  name: "Coffee Shop Chain",
  symbol: "COFFEE",
  category: "Food & Beverage"
});

// Tokenize customer points
await exchange.tokenizePoints(merchant, customer, 500);

// Exchange points between merchants
await exchange.exchangePoints("COFFEE", "GAS", customer, 500);

Identity & Trust Systems

Build secure, user-controlled identity solutions.

• Naming Service (SNS) - Human-readable domain names
• Digital Identity - Self-sovereign identity management
• KYC/AML - Regulatory compliance verification
• Reputation Systems - Trust and scoring platforms
• Credential Verification - Academic and professional certificates

Digital Assets & NFTs

Create, trade, and manage unique digital assets.

• NFT Marketplaces - Digital art and collectibles trading
• Art Galleries - Digital art exhibition platforms
• Gaming Assets - In-game items and currencies
• Music NFTs - Music rights and royalties
• Collectibles - Trading cards and memorabilia
• Virtual Land - Metaverse property trading

Governance & DAOs

Build transparent, community-governed organizations.

• DAO Platforms - decentralized organization frameworks
• Voting Systems - Secure and transparent voting
• Treasury Management - Collective fund management
• Proposal Systems - Community governance tools
• Council Elections - On-chain governance selection

Supply Chain & Logistics

Supply chain transparency and tracking on blockchain.

• Product Tracking - End-to-end supply chain verification
• Quality Assurance - Product authenticity certification
• Shipping Insurance - Automated cargo protection
• Trade Finance - International trade documentation
• Inventory Systems - Real-time stock management

Real Estate & Property

Real estate tokenization and smart contract-based property management.

• Property Tokenization - Fractional real estate ownership
• Rental Management - Smart contract leasing systems
• Title Registry - Land title verification
• Mortgage Lending - Collateralized property loans
• Property Management - Automated maintenance systems

Healthcare & Biotech

Secure healthcare solutions on blockchain.

• Medical Records - Secure patient data management
• Prescription Tracking - Drug verification and monitoring
• Research Data - Secure medical research sharing
• Insurance Claims - Automated claim processing
• Telemedicine - Secure consultation platforms

Energy & Sustainability

Build sustainable energy markets and carbon trading.

• Carbon Credits - Carbon offset trading platforms
• Energy Trading - Peer-to-peer energy markets
• Renewable Energy - Green energy certification
• ESG Tracking - Environmental impact monitoring
• Sustainability Reporting - Automated compliance systems

Education & Learning

Education credentialing and verification on blockchain.

• Academic Credentials - Degree and certificate verification
• Learning Platforms - Blockchain-based education systems
• Research Funding - Decentralized grant distribution
• Knowledge Markets - Expert consultation platforms
• Student Loans - Educational financing systems

Gaming & Metaverse

Create immersive gaming experiences and virtual worlds.

• Game Economies - Virtual currency and item trading
• Metaverse Platforms - Virtual world property and assets
• Esports Betting - Tournament wagering platforms
• Game Development - Crowdfunding game projects
• Virtual Assets - Digital collectibles and items

Social & Communication

Build decentralized social platforms and communities.

• Social Networks - Decentralized social platforms
• Content Creation - Creator economy platforms
• Messaging Apps - Secure communication systems
• Community Platforms - DAO-based communities
• Dating Apps - Decentralized matchmaking

Legal & Compliance

Automate legal processes and ensure compliance.

• Smart Contracts - Automated legal agreements
• Document Verification - Legal document authentication
• Dispute Resolution - Automated arbitration systems
• Compliance Monitoring - Regulatory compliance tools
• Intellectual Property - Patent and copyright protection

Infrastructure & Tools

Build the next generation of blockchain tools.

• Wallet Development - Custom wallet applications
• Explorer Tools - Blockchain data explorers
• Analytics Platforms - Data visualization tools
• API Services - RESTful blockchain APIs
• Testing Frameworks - Development testing tools

Get Started Building

Installation

npm install @selendrajs/sdk
npm install @selendrajs/sdk/react

Choose Your Starting Point

For Beginners

Start with simple applications to learn the basics:

git clone https://github.com/selendra/selendra-sdk.git
cd selendra-sdk/examples/simple-wallet
npm install && npm run dev

For Quick Prototypes

Use our ready-to-use templates:

• Simple Wallet - Basic wallet with account management
• Payment Gateway - Merchant payment processing
• NFT Marketplace - Digital collectibles trading
• DeFi Exchange - Token swapping platform
• Governance dApp - Voting and proposal system

For Enterprise

Build production-ready applications:

# Clone enterprise template
git clone https://github.com/selendra/selendra-sdk.git
cd selendra-sdk/examples/defi-swap-app

Prerequisites

• Node.js 16+ - JavaScript runtime
• TypeScript - For type-safe development
• React - For web applications (optional)
• Basic Blockchain Knowledge - Understanding of wallets, transactions

Development Workflow

1. Setup - Install SDK and dependencies
2. Connect - Connect to Selendra network
3. Build - Create your application logic
4. Test - Use testnet for development
5. Deploy - Launch on mainnet when ready

Developer Resources

Learning & Documentation

• Official Documentation - guides
• API Reference - API docs
• Tutorials - Step-by-step guides
• Developer Courses - Structured learning

Community & Support

• GitHub Issues - Bug reports and questions
• GitHub Discussions - Community Q&A
• Email - Direct contact

Tools & Infrastructure

• Network Explorer - Block explorer
• Testnet Faucet - Free test tokens
• Analytics Dashboard - Network metrics
• Developer Portal - Development tools

SDK Status

Official SDK for Selendra blockchain:

• TypeScript Implementation - Production ready for Substrate features
• React Hooks - 15 hooks for React applications
• Rust Implementation - In development (not production ready)
• Community Support - GitHub issues and discussions
• Multi-Language - TypeScript, JavaScript, and Rust
• Built on - Polkadot.js, Substrate, and Ethers.js foundations

Start Building

The Selendra SDK provides tools for building Web3 applications on Selendra blockchain.

Developed by the Selendra Team