FourTrader MCP Server - BNB Chain (Four.meme)

MCP (Model Context Protocol) server for trading Four.meme tokens on BNB Smart Chain. Enables AI assistants to interact with Four.meme through a standardized protocol.

🌟 Features

• Four.meme Trading: Buy and sell tokens on the Four.meme platform
• Real-time Data: Access prices, trades, and bonding curves via Bitquery API
• Wallet Management: Check BNB and token balances
• Claude Integration: Use directly with Claude for Desktop

📋 Prerequisites

• Node.js (v18+)
• TypeScript
• BNB wallet with private key
• Bitquery API key (for token data)
• Claude for Desktop (optional, for integration)

🚀 Installation

1. Clone/Create Project

```bash mkdir fourtrader-mcp cd fourtrader-mcp ```

2. Create Structure

``` fourtrader-mcp/ ├── src/ │ ├── server.ts │ ├── providers/ │ │ ├── fourMeme.ts │ │ └── bitqueryApi.ts │ └── utils/ │ ├── config.ts │ └── logger.ts ├── .env ├── package.json ├── tsconfig.json └── mcp-startup.js ```

3. Install Dependencies

```bash npm install ```

4. Configure Environment

Copy `.env.example` to `.env` and fill in:

```env

Server Configuration

SERVER_NAME=fourtrader-mcp SERVER_VERSION=1.0.0

BNB Chain Configuration

WALLET_ADDRESS=0xYourWalletAddress WALLET_PRIVATE_KEY=your_private_key_here BNB_RPC_ENDPOINT=https://bsc-dataseed.binance.org/

Four.meme Configuration

FOURMEME_CONTRACT_ADDRESS=0x5c952063c7fc8610FFDB798152D69F0B9550762b

Bitquery API Configuration

BITQUERY_API_KEY=your_bitquery_key_here BITQUERY_API_ENDPOINT=https://streaming.bitquery.io/graphql ```

⚠️ IMPORTANT:

• Get Bitquery API key from: https://bitquery.io/
• Never share your private key!

5. Build Project

```bash npm run build ```

6. Start Server

```bash npm start ```

🔧 Claude Desktop Configuration

To use the server with Claude for Desktop:

1. Find Configuration File

• macOS: `~/Library/Application Support/Claude/claude_desktop_config.json`
• Windows: `%APPDATA%\Claude\claude_desktop_config.json`

2. Add Server

```json { "mcpServers": { "fourtrader": { "command": "node", "args": [ "/full/path/to/fourtrader-mcp/mcp-startup.js" ], "cwd": "/full/path/to/fourtrader-mcp" } } } ```

Replace `/full/path/to/` with your actual path!

Example paths:

• macOS: `/Users/username/Desktop/fourtrader-mcp`
• Windows: `C:\\Users\\username\\Desktop\\fourtrader-mcp`

3. Restart Claude Desktop

Close completely and reopen Claude Desktop.

4. Verify Connection

Open Claude Desktop → Click settings icon (bottom left) → You should see "fourtrader" in the connected servers list.

🛠️ Available Tools

Tool	Description	Parameters
`get_token_info`	Get detailed token information	`address` (string)
`get_token_price`	Get current token price	`address` (string)
`get_recent_tokens`	Get recent tokens on Four.meme	`limit` (number, optional)
`get_bonding_curve_progress`	Get bonding curve progress	`address` (string)
`get_latest_trades`	Get latest trades for a token	`address` (string), `limit` (number)
`buy_token`	Buy a token	`address`, `bnbAmount`, `slippage`, `gasLimit`
`sell_token`	Sell a token	`address`, `tokenAmount`, `slippage`, `gasLimit`
`get_bnb_balance`	Get wallet BNB balance	none
`get_token_balance`	Get balance of specific token	`address` (string)

💬 Usage Examples with Claude

Once connected, you can ask Claude:

• "Show me recent tokens on Four.meme"
• "What's the price of token 0x..."
• "Buy 0.1 BNB of this token: 0x..."
• "What's my BNB balance?"
• "Show me the bonding curve progress for token 0x..."

🧪 Testing with MCP Inspector

To test the server before using with Claude:

```bash npx @modelcontextprotocol/inspector node build/server.js ```

Open http://127.0.0.1:6274 in your browser and test the tools.

📚 Bitquery API

The project uses Bitquery to access Four.meme on-chain data:

• Documentation: https://docs.bitquery.io/docs/blockchain/BSC/four-meme-api/
• Dashboard: https://bitquery.io/
• GraphQL Playground: https://graphql.bitquery.io/

Supported Queries

• Token metadata
• Real-time prices
• Trade history
• Bonding curve progress
• Liquidity events
• Newly created tokens

🔐 Security

⚠️ WARNING:

1. Private Key: Never share or commit to Git
2. API Keys: Keep your API keys secure
3. Testnet: Always test on testnet first (BSC Testnet)
4. Amounts: Start with small amounts for testing
5. .env: Add `.env` to `.gitignore`

```bash echo ".env" >> .gitignore ```

🐛 Troubleshooting

Server not connecting to Claude

1. Verify the path in `claude_desktop_config.json` is correct
2. Check logs:
   • macOS: `~/Library/Logs/Claude/mcp*.log`
   • Windows: `%APPDATA%\Claude\logs\mcp*.log`
3. Restart Claude Desktop completely

"Bitquery API" errors

• Verify your API key is valid
• Check rate limits: https://bitquery.io/pricing
• Some data may not be available for all tokens

"Insufficient funds" errors

• Ensure you have enough BNB in wallet
• Consider gas fees (approximately 0.001-0.005 BNB per transaction)

Transaction failed

• Increase `gasLimit` in parameters
• Check that token exists and is tradeable
• Verify `slippage` (try increasing to 5-10% for volatile tokens)

📝 Important Notes

1. Four.meme has no public REST API: We use Bitquery to access on-chain data
2. Smart Contract: Four.meme address: `0x5c952063c7fc8610FFDB798152D69F0B9550762b`
3. BNB Chain: Always use BNB Smart Chain (BSC), not BNB Beacon Chain
4. Gas Fees: Transactions cost gas in BNB (typically 0.001-0.005 BNB)

🔄 Differences vs Solana Project

Aspect	Solana (PumpFun)	BNB (Four.meme)
Blockchain	Solana	BNB Smart Chain
Library	@solana/web3.js	ethers.js
Data API	Moralis	Bitquery
Native Token	SOL	BNB
Gas Fees	~0.00001 SOL	~0.001-0.005 BNB

🤝 Support

• Bitquery Docs: https://docs.bitquery.io/
• Four.meme: https://four.meme/
• BNB Chain: https://docs.bnbchain.org/
• MCP Protocol: https://modelcontextprotocol.io/

📄 License

MIT

⚠️ Disclaimer

This software is provided "as is". Cryptocurrency trading involves risks. Use at your own risk.