Developer Guide

Third-Party Tools & Wallet Integration

Complete guide for integrating essential tools to complete your Hedges Capital DeFi platform

✅ Wallet Connection Already Implemented!

Your website already has MetaMask wallet integration set up. Users can click "Connect Wallet" buttons to connect their Web3 wallets. Below you'll find what's already working and what additional tools you need.

Part 1: Wallet Connection (Already Working!)

✅ What's Already Implemented:

MetaMask wallet detection

Connect/Disconnect functionality

Account address display

Network detection (Ethereum, Polygon, Arbitrum)

Network switching

Auto-reconnect on page refresh

Token balance checking (USDC, USDT, DAI)

Event listeners (account/network changes)

How It Works (For Testing):

1

Install MetaMask

Download MetaMask browser extension from metamask.io

2

Click "Connect Wallet" Button

Any button with data-wallet-connect attribute will trigger connection

3

Approve Connection

MetaMask popup will appear - approve to connect your wallet

4

Connected!

Button text changes to your wallet address (e.g., "0x1234...5678")

Code Location:

📁 wallet.js - Main wallet integration module (MetaMask connection logic)
📁 index.js - Page initialization, event handlers, UI updates
🏷️ HTML Attributes:
- data-wallet-connect - Triggers wallet connection
- data-wallet-account - Displays wallet address
- data-wallet-network - Shows current network
- data-wallet-connected - Show when connected
- data-wallet-disconnected - Show when disconnected

Part 2: Third-Party Services for Wallet Connections

Current Setup (No Extra Tools Needed!)

Your wallet connection currently uses MetaMask directly through the browser's window.ethereum API. This means:

No API keys needed - Direct browser integration
No third-party dependencies - Pure JavaScript
Works right now - Already functional
Free to use - No costs involved

Optional: Advanced Wallet Providers (For More Wallet Support)

1. WalletConnect

Connect to 170+ mobile wallets with QR code scanning

Mobile Support Free Tier Available 170+ Wallets

Why Use It:

✅ Support mobile wallets (Trust Wallet, Rainbow, etc.)
✅ QR code connection for mobile users
✅ Works with Coinbase Wallet, Ledger, Trezor
✅ Better user experience for non-MetaMask users

Setup Steps:

1

Sign up at cloud.walletconnect.com
2

Create a new project and get your Project ID
3

Install WalletConnect library:
npm install @web3modal/ethereum @web3modal/html
4

Add to your wallet.js file (I can help you with this code)

Cost: FREE

Free tier: Up to 10,000 connections/month (plenty for most projects)

2. Web3Modal (by WalletConnect)

Beautiful modal UI for connecting multiple wallet providers

UI Library Free Easy Setup

Why Use It:

✅ Beautiful pre-built wallet selection UI
✅ Combines MetaMask + WalletConnect + Coinbase in one modal
✅ Automatic wallet detection and recommendations
✅ Works great with WalletConnect Project ID

Recommended for Best User Experience

Gives users a professional wallet selection modal instead of MetaMask-only

3. Alchemy (Optional)

Blockchain node infrastructure for reliable RPC connections

RPC Provider Free Tier Optional

Why Use It:

✅ Faster and more reliable than public RPC endpoints
✅ Better for reading blockchain data (balances, transactions)
✅ Enhanced APIs for NFTs, tokens, webhooks
✅ 99.9% uptime guarantee

Setup Steps:

1

Sign up at alchemy.com
2

Create an app for each network (Ethereum, Polygon, Arbitrum)
3

Get your API keys and RPC URLs
4

Replace public RPC URLs in your wallet.js with Alchemy URLs

Cost: FREE

Free tier: 300M compute units/month (enough for thousands of users)

Quick Comparison

Service	Purpose	Required?	Cost
MetaMask Direct	Browser wallet connection	✓ Already Working	FREE
WalletConnect	Mobile + 170+ wallets	Optional	FREE
Web3Modal	Wallet selection UI	Optional	FREE
Alchemy	Better RPC performance	Optional	FREE

My Recommendation

✨ Best Setup for Hedges Capital

Based on your DeFi prize pool platform, here's what I recommend:

🚀 Start Simple (Current Setup)

✓ Use MetaMask direct connection (already working)
✓ No additional setup needed
✓ Works for 80% of crypto users
✓ Launch and test immediately

📈 Upgrade Later (When Growing)

✓ Add WalletConnect for mobile users
✓ Add Web3Modal for better UX
✓ Add Alchemy for performance
✓ Still free with these additions

1

Phase 1: MVP (Current - Ready Now!)

Your website already has everything needed to launch:

✅ MetaMask wallet connection (functional)
✅ Account detection and display
✅ Network switching
✅ Token balance checking

Action: Test your site with MetaMask and launch!

2

Phase 2: Enhanced UX (1-2 weeks after launch)

When you have 50+ users, add better wallet support:

📱 Add WalletConnect (mobile wallet support)
🎨 Add Web3Modal (beautiful wallet selection)
⚡ Add Alchemy RPC (faster blockchain reads)

Effort: 2-3 hours of development | Cost: Still FREE

3

Phase 3: Scale (When You Have Real Users)

At 500+ active users, consider premium services:

💎 Alchemy Premium ($49/month for advanced features)
📊 Analytics tools (Mixpanel, Amplitude)
🔒 Security monitoring (OpenZeppelin Defender)
📧 Email notifications (SendGrid, AWS SES)

Bottom Line

For wallet connection: You don't need ANY third-party services right now. Your current setup works perfectly!

Optional upgrades: WalletConnect and Web3Modal will give you better mobile support and UX, but they're not required to launch.

Cost: Everything mentioned above is FREE for your usage level.

Part 2: Essential Third-Party Tools Needed

To complete your DeFi platform, you'll need these critical services. All are free to start:

1. Smart Contracts (Hardhat + Solidity)

CRITICAL

Deploy smart contracts for prize pools, deposits, withdrawals, and yield generation

What You Need:

• Hardhat - Development environment (hardhat.org)
• OpenZeppelin Contracts - Secure, audited contracts (openzeppelin.com/contracts)
• Chainlink VRF - Verifiable random numbers for prize draws (chain.link/vrf)

⚠️ Important: You need a smart contract developer for this. Contracts must be:

• Audited for security (CertiK, OpenZeppelin, Trail of Bits)
• Handle deposits/withdrawals safely
• Integrate with DeFi protocols (Aave, Compound) for yield
• Fair prize distribution with Chainlink VRF

Cost: $0 (tools) + $5K-50K (development + audit)

2. Blockchain RPC Provider (Alchemy or Infura)

CRITICAL

Connect your website to blockchain networks reliably

Setup Steps:

1. Sign up at alchemy.com or infura.io
2. Create a new app/project
3. Select networks: Ethereum Mainnet, Polygon, Arbitrum
4. Copy your API keys
5. Update wallet.js to use your RPC endpoints

📝 Update Required in wallet.js:

const SUPPORTED_NETWORKS = {
  1: { 
    name: 'Ethereum Mainnet', 
    rpc: 'https://eth-mainnet.g.alchemy.com/v2/YOUR_API_KEY' 
  },
  137: { 
    name: 'Polygon', 
    rpc: 'https://polygon-mainnet.g.alchemy.com/v2/YOUR_API_KEY' 
  }
};

Cost: Free (up to 300M requests/month)

3. WalletConnect (Mobile Wallet Support)

RECOMMENDED

Allow users to connect mobile wallets (Trust Wallet, Rainbow, Argent, etc.)

Integration Steps:

• Sign up at cloud.walletconnect.com
• Get your Project ID
• Install: npm install @walletconnect/web3-provider
• Add WalletConnect option to your wallet connection modal
• Users scan QR code with mobile wallet app

Cost: Free

4. The Graph (Blockchain Indexing)

RECOMMENDED

Query blockchain data efficiently (user balances, prize history, transactions)

What It Does:

• Indexes all your smart contract events
• Fast GraphQL queries for user data
• Historical prize winners, deposits, withdrawals
• Dashboard statistics and analytics

Setup: Create subgraph at thegraph.com/studio, define schema, deploy, query with GraphQL

Cost: Free (Subgraph Studio)

5. Etherscan API

USEFUL

Verify transactions, get gas prices, check contract verification

• Get API key from etherscan.io/apis
• Use for transaction status, gas estimates, contract interactions
• Link users to Etherscan for transaction details

Cost: Free (5 calls/sec)

Part 3: Optional Enhancement Tools

Google Analytics / Mixpanel

Track user behavior, conversions, wallet connections

analytics.google.com • Free

Mailchimp / SendGrid

Send prize notifications, newsletters, updates

mailchimp.com • Free up to 500 contacts

Discord Webhook / Bot

Announce prize winners in your Discord community

discord.com/developers • Free

Sentry

Error tracking and performance monitoring

sentry.io • Free (5K errors/month)

Third-Party Tools & Wallet Integration

✅ Wallet Connection Already Implemented!

Part 1: Wallet Connection (Already Working!)

✅ What's Already Implemented:

How It Works (For Testing):

Code Location:

Part 2: Third-Party Services for Wallet Connections

Current Setup (No Extra Tools Needed!)

Optional: Advanced Wallet Providers (For More Wallet Support)

1. WalletConnect

Why Use It:

Setup Steps:

2. Web3Modal (by WalletConnect)

Why Use It:

3. Alchemy (Optional)

Why Use It:

Setup Steps:

Quick Comparison

My Recommendation

✨ Best Setup for Hedges Capital

🚀 Start Simple (Current Setup)

📈 Upgrade Later (When Growing)

Phase 1: MVP (Current - Ready Now!)

Phase 2: Enhanced UX (1-2 weeks after launch)

Phase 3: Scale (When You Have Real Users)

Bottom Line

Part 2: Essential Third-Party Tools Needed

1. Smart Contracts (Hardhat + Solidity)

What You Need:

2. Blockchain RPC Provider (Alchemy or Infura)

Setup Steps:

3. WalletConnect (Mobile Wallet Support)

Integration Steps:

4. The Graph (Blockchain Indexing)

What It Does:

5. Etherscan API

Part 3: Optional Enhancement Tools

Google Analytics / Mixpanel

Mailchimp / SendGrid

Discord Webhook / Bot

Sentry

Implementation Checklist

Phase 1: Critical Must-Have for Launch

Phase 2: Important Launch Month

Phase 3: Growth Post-Launch Improvements

📋 Quick Summary

✅ Already Working:

⚠️ Still Needed:

Need Help Setting This Up?