Agent Wallet MCP

Give Claude a Solana wallet.

An MCP (Model Context Protocol) server that lets Claude send USDC, check balances, and manage transactions on Solana.

Demo

You: "What's my wallet balance?"

Claude: Let me check your wallet balance.

        {
          "sol": 1.5,
          "usdc": 25.00,
          "network": "devnet",
          "address": "7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU"
        }

You: "Send $5 USDC to [address] for the API calls I just used"

Claude: I'll send 5 USDC to that address now.

        {
          "success": true,
          "signature": "5UfgJ3...",
          "recipient": "...",
          "amount": 5,
          "explorer": "https://explorer.solana.com/tx/..."
        }

        Done! Transaction confirmed on Solana devnet.

Installation

# Clone the repo
git clone https://github.com/noah-ing/agent-wallet-mcp.git
cd agent-wallet-mcp

# Install dependencies
npm install

# Build
npm run build

Setup with Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "agent-wallet": {
      "command": "node",
      "args": ["/path/to/agent-wallet-mcp/dist/index.js"]
    }
  }
}

Then restart Claude Desktop.

Available Tools

Tool	Description
get_wallet_address	Get the agent's Solana wallet address
get_balance	Check USDC and SOL balance
send_usdc	Send USDC to another address
get_recent_transactions	View recent transaction history
request_devnet_airdrop	Get free devnet SOL for fees

How It Works

1. Persistent Wallet: Creates a keypair stored at ~/.agent-wallet/keypair.json
2. Devnet Only: All transactions happen on Solana devnet (test network)
3. Real Transactions: These are actual blockchain transactions, just on testnet

Getting Devnet USDC

The wallet starts empty. To test sending USDC:

1. Get your wallet address: Ask Claude "What's my wallet address?"
2. Get devnet SOL: Ask Claude "Request a devnet airdrop"
3. Get devnet USDC from Circle's faucet or Solana faucet

Development

# Watch mode
npm run dev

# Test with MCP Inspector
npm run inspector

Why This Exists

AI agents will eventually need to pay for things - API calls, compute, services from other agents.

This is a simple demo of what that looks like: Claude with a wallet, making real (testnet) transactions.

Security Notes

• Devnet only - No real money involved
• Local keypair - Private key never leaves your machine
• No mainnet support - Intentionally limited to devnet for safety

License

MIT