Create a Telegram bot powered by Solana Agent Kit to interact with Solana blockchain through natural language conversations. This implementation provides a seamless way to execute blockchain operations via Telegram.

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Quick Start

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1. Agent Setup

# Clone the repository
npm install -g degit
degit sendaifun/solana-agent-kit/tree/main/examples/tg-bot-starter tg-agent
cd tg-agent

# Install dependencies
pnpm install

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2. Environment Configuration

Create a .env.local file: 
OPENAI_API_KEY=your_openai_key
RPC_URL=your_solana_rpc_url
SOLANA_PRIVATE_KEY=your_wallet_private_key_base58
TELEGRAM_BOT_TOKEN=your_telegram_bot_token

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3. Create Telegram Bot

  1. Message @BotFather on Telegram
  2. Use /newbot command
  3. Follow instructions to create bot
  4. Save the bot token

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Project Structure

├── app/
│   ├── api/
│   │   └── bot/
│   │       └── route.ts    # Telegram webhook handler
│   ├── lib/
│   │   ├── agent.ts       # Solana Agent setup
│   │   └── telegram.ts    # Telegram utilities
│   └── config.ts          # Configuration
├── public/
└── package.json

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Implementation Steps

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1. Set Up Webhook

# Using curl
curl https://api.telegram.org/bot<TELEGRAM_BOT_TOKEN>/setWebhook?url=https://<your-domain>/api/bot

# Or visit in browser
https://api.telegram.org/bot<TELEGRAM_BOT_TOKEN>/setWebhook?url=https://<your-domain>/api/bot

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2. Local Development

# Start development server
pnpm dev

# Start ngrok tunnel
ngrok http 3000

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Core Components

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Webhook Handler

// app/api/bot/route.ts
export async function POST(req: Request) {
  const body = await req.json();
  
  // Initialize agent
  const agent = new SolanaAgentKit(
    process.env.SOLANA_PRIVATE_KEY!,
    process.env.RPC_URL!,
    process.env.OPENAI_API_KEY
  );

  // Process message
  const response = await processMessage(body, agent);
  
  return new Response(JSON.stringify(response));
}

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Message Processing

async function processMessage(message: any, agent: SolanaAgentKit) {
  const { text, chat } = message;
  
  // Generate response using agent
  const response = await agent.chat(text);
  
  // Send response to Telegram
  await sendTelegramMessage(chat.id, response);
}

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Features

  1. Chat Interaction
    • Natural language processing
    • Command handling
    • Error responses
    • Message formatting
  2. Blockchain Operations
    • Transaction execution
    • Balance checking
    • Token transfers
    • Price queries
  3. Bot Management
    • User session handling
    • Rate limiting
    • Error handling
    • Logging

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Deployment

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Deploy to Vercel

  1. Push code to GitHub
  2. Import project in Vercel
  3. Configure environment variables
  4. Deploy
Deploy with Vercel

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Set Up Webhook

After deployment:
  1. Get your deployment URL
  2. Set webhook using the URL
  3. Verify webhook status
  4. Test bot functionality

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Security Considerations

  1. Token Security
    • Secure storage of bot token
    • Environment variable protection
    • Access control
    • Rate limiting
  2. Request Validation
    • Validate Telegram updates
    • Check message format
    • Verify user permissions
    • Monitor activity
  3. Error Handling
    • Graceful error messages
    • Transaction failures
    • Network issues
    • API limits

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Example Bot Commands

/balance - Check wallet balance
/price SOL - Get SOL price
/transfer 1 SOL address - Transfer SOL
/help - Show available commands

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Development Tips

  1. Local Testing
    • Use ngrok for local development
    • Test all commands thoroughly
    • Monitor error logs
    • Check response times
  2. Message Handling
    • Parse commands correctly
    • Format responses properly
    • Handle long messages
    • Implement retry logic
  3. User Experience
    • Clear error messages
    • Progress indicators
    • Command suggestions
    • Help documentation

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Common Issues

  1. Webhook Setup
    • Invalid URL format
    • SSL certificate issues
    • Port configuration
    • Domain verification
  2. Bot Responses
    • Slow response times
    • Message formatting
    • Command parsing
    • Error handling
  3. Deployment
    • Environment variables
    • Webhook configuration
    • API access
    • Rate limits

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Testing

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Local Testing

# Start local server
pnpm dev

# Start ngrok
ngrok http 3000

# Set webhook to ngrok URL
curl https://api.telegram.org/bot<token>/setWebhook?url=<ngrok-url>/api/bot

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Production Testing

  1. Send test messages
  2. Check transaction execution
  3. Verify responses
  4. Monitor errors

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Resources

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Support

For support and questions:
  • Create GitHub issue
  • Join Telegram support group
  • Check documentation
  • Contact maintainers