Chia WalletConnect - Telegram Verification

Telegram Web App for Chia wallet verification via WalletConnect and Sage. Enables cryptographic proof of wallet ownership through signature verification using MintGarden API.

Chia WalletConnect Skill

Verify Chia wallet ownership via Telegram using WalletConnect integration with Sage Wallet.

What It Does

This skill provides a Telegram Mini App (Web App) that enables users to:

1. Connect their Sage Wallet via WalletConnect v2
2. Sign a challenge message cryptographically
3. Verify wallet ownership via MintGarden's signature verification API
4. Return verification status to your Telegram bot

Use Cases:

• NFT-gated Telegram groups
• Airdrop eligibility verification
• Web3-style authentication
• DAO voting authentication
• Proof of token holdings

Architecture

/verify command → Web App button → WalletConnect → Sage signs → Verification

The user never leaves Telegram. The entire flow happens in-app via the Telegram Web App API.

Installation

# Install via ClawdHub
clawdhub install chia-walletconnect

# Install dependencies
cd skills/chia-walletconnect
npm install

# Make CLI executable
chmod +x cli.js

Deployment

Step 1: Deploy Web App

Deploy the webapp/ folder to a public HTTPS URL:

Vercel (Recommended):

cd skills/chia-walletconnect/webapp
vercel
# Copy the URL (e.g., https://chia-verify.vercel.app)

Netlify:

cd skills/chia-walletconnect/webapp
netlify deploy --prod

Your Server:

# Start Express server
npm start
# Expose via ngrok or reverse proxy

Step 2: Register with BotFather

1. Message @BotFather
2. Send /newapp or /editapp
3. Select your bot
4. Web App URL: Enter deployed URL
5. Short Name: verify

Step 3: Add to Bot

Using Clawdbot Message Tool

// Send /verify command handler
message({
  action: 'send',
  target: chatId,
  message: 'Click below to verify your Chia wallet:',
  buttons: [[{
    text: '🌱 Verify Wallet',
    web_app: { url: 'https://your-app.vercel.app' }
  }]]
});

Handling Verification Response

// In your bot's web_app_data handler
bot.on('web_app_data', async (msg) => {
  const data = JSON.parse(msg.web_app_data.data);
  const { address, message, signature, publicKey, userId } = data;
  
  // Verify signature
  const { verifySignature } = require('./skills/chia-walletconnect/lib/verify');
  const result = await verifySignature(address, message, signature, publicKey);
  
  if (result.verified) {
    // Wallet verified! Grant access, record verification, etc.
    message({
      action: 'send',
      target: msg.chat.id,
      message: `✅ Wallet verified!\n\nAddress: ${address}`
    });
    
    // Store verification
    // await db.saveVerification(userId, address);
  } else {
    message({
      action: 'send',
      target: msg.chat.id,
      message: `❌ Verification failed: ${result.error}`
    });
  }
});

CLI Usage

The skill includes a CLI for testing:

# Generate challenge message
node cli.js challenge xch1abc... telegram_user_123

# Verify signature manually
node cli.js verify xch1abc... "message" "signature" "pubkey"

# Validate address format
node cli.js validate xch1abc...

# Start development server
node cli.js server

API Reference

MintGarden Signature Verification

Endpoint: POST https://api.mintgarden.io/address/verify_signature

{
  "address": "xch1abc...",
  "message": "Verify ownership of Chia wallet:...",
  "signature": "hex_signature",
  "pubkey": "hex_public_key"
}

Response:

{
  "verified": true
}

CHIP-0002 Methods (WalletConnect)

Method	Purpose
chip0002_getPublicKeys	Fetch public keys from wallet
chip0002_signMessage	Request message signature
chia_getCurrentAddress	Get current receive address

Verification Flow

1. User sends /verify to bot
2. Bot responds with Web App button
3. User taps button → Mini App opens in Telegram
4. Mini App initializes WalletConnect
5. User connects Sage Wallet
6. Challenge message generated (includes nonce + timestamp)
7. User signs message in Sage Wallet
8. Signature sent back to bot via Telegram.WebApp.sendData()
9. Bot verifies signature with MintGarden API
10. Bot confirms verification success/failure

Time: ~5-10 seconds for full flow (user-dependent)

Configuration

Environment Variables

Create .env in skill folder:

PORT=3000
WALLETCONNECT_PROJECT_ID=your-project-id
MINTGARDEN_API_URL=https://api.mintgarden.io

Get WalletConnect Project ID

1. Visit WalletConnect Cloud
2. Create a new project
3. Copy your Project ID
4. Update in webapp/app.js

Default Project ID:
The skill includes 6d377259062295c0f6312b4f3e7a5d9b (Dracattus reference). For production, use your own.

Security

What's Protected

• ✅ Challenge nonces prevent replay attacks
• ✅ Timestamps expire after 5 minutes
• ✅ MintGarden cryptographic verification
• ✅ No private keys ever requested
• ✅ HTTPS enforced by Telegram

Best Practices

1. Store verifications securely — Use encrypted database
2. Rate limit — Prevent spam verification attempts
3. Link to Telegram user ID — Prevent address spoofing
4. Implement cooldown — 1 verification per user per day
5. Log attempts — Audit trail for security

Production Checklist

• Deploy to HTTPS URL (required by Telegram)
• Use your own WalletConnect Project ID
• Enable CORS only for your domain
• Add rate limiting on webhook endpoints
• Store verifications in persistent database
• Implement retry logic for network errors
• Set up monitoring/alerts

Files

chia-walletconnect/
├── webapp/
│   ├── index.html        # Telegram Web App UI
│   ├── app.js            # WalletConnect logic
│   └── styles.css        # Styling
├── lib/
│   ├── challenge.js      # Challenge generation
│   └── verify.js         # MintGarden API client
├── server/
│   └── index.js          # Express webhook server
├── cli.js                # CLI interface
├── package.json          # Dependencies
├── SKILL.md              # This file
└── README.md             # Full documentation

Troubleshooting

Web App Doesn't Load

• Verify HTTPS deployment (Telegram requires SSL)
• Check URL is publicly accessible
• Test URL directly in browser
• Review browser console for errors

WalletConnect Connection Fails

• Ensure Sage Wallet is latest version
• Try manual URI paste instead of QR
• Check WalletConnect Project ID is valid
• Verify Sage supports WalletConnect v2

Signature Verification Fails

• Ensure message format matches exactly
• Confirm public key corresponds to address
• Check MintGarden API is operational
• Verify signature encoding (hex)

"No Public Key" Error

• Some wallets don't expose pubkey via WalletConnect
• Public key is optional for verification
• Signature verification works without it

Examples

Simple Verification Bot

// Clawdbot skill handler

const { verifySignature } = require('./lib/verify');

// /verify command
if (message.text === '/verify') {
  await message({
    action: 'send',
    target: message.chat.id,
    message: 'Verify your Chia wallet:',
    buttons: [[{
      text: '🌱 Connect Wallet',
      web_app: { url: process.env.WEB_APP_URL }
    }]]
  });
}

// Handle web app data
bot.on('web_app_data', async (msg) => {
  const { address, message: challengeMsg, signature, publicKey } = 
    JSON.parse(msg.web_app_data.data);
  
  const result = await verifySignature(address, challengeMsg, signature, publicKey);
  
  if (result.verified) {
    // Grant access
    await grantAccess(msg.from.id, address);
    await message({
      action: 'send',
      target: msg.chat.id,
      message: `✅ Verified! Welcome, ${address.substring(0, 12)}...`
    });
  } else {
    await message({
      action: 'send',
      target: msg.chat.id,
      message: `❌ Verification failed`
    });
  }
});

NFT Gating

// Check if user owns specific NFT collection

const { verifySignature } = require('./skills/chia-walletconnect/lib/verify');
const mintGarden = require('./skills/mintgarden'); // Assume mintgarden skill exists

bot.on('web_app_data', async (msg) => {
  const { address, message, signature, publicKey } = 
    JSON.parse(msg.web_app_data.data);
  
  // Verify signature first
  const verifyResult = await verifySignature(address, message, signature, publicKey);
  
  if (!verifyResult.verified) {
    return bot.sendMessage(msg.chat.id, '❌ Invalid signature');
  }
  
  // Check NFT ownership
  const nfts = await mintGarden.getNFTsByAddress(address);
  const hasRequiredNFT = nfts.some(nft => 
    nft.collection_id === 'col1required...'
  );
  
  if (hasRequiredNFT) {
    // Grant access to private group
    await inviteToGroup(msg.from.id);
    bot.sendMessage(msg.chat.id, '✅ Access granted! Check your invites.');
  } else {
    bot.sendMessage(msg.chat.id, '❌ You need a Wojak NFT to join!');
  }
});

Performance

Stage	Time
WalletConnect Init	~1-2s
Connection Approval	User action
Sign Request	~2-5s
MintGarden Verify	~0.5-1s
Total	~5-10s

Dependencies

• @walletconnect/sign-client — WalletConnect v2
• @walletconnect/utils — WalletConnect helpers
• @walletconnect/types — TypeScript types
• express — Web server
• node-fetch — HTTP client
• cors — CORS middleware
• dotenv — Environment config

Version

1.0.0

License

MIT — Koba42 Corp

Links

• MintGarden API: https://api.mintgarden.io/docs
• WalletConnect: https://docs.walletconnect.com/
• Telegram Web Apps: https://core.telegram.org/bots/webapps
• Sage Wallet: https://www.sagewallet.io/
• CHIP-0002: https://github.com/Chia-Network/chips/blob/main/CHIPs/chip-0002.md

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