@aibtc/mcp-server

Bitcoin-native MCP server for AI agents: BTC/STX wallets, DeFi yield, sBTC peg, NFTs, and x402 payments.

Features

• Bitcoin L1 - Check balances, send BTC, manage UTXOs via mempool.space
• Agent's Own Wallet - Agents get their own wallet to perform blockchain transactions
• Secure Storage - Wallets encrypted with AES-256-GCM and stored locally
• 150+ Tools - Bitcoin L1 + comprehensive Stacks L2 operations
• sBTC Support - Native Bitcoin on Stacks operations
• Token Operations - SIP-010 fungible token transfers and queries
• NFT Support - SIP-009 NFT holdings, transfers, and metadata
• DeFi Trading - ALEX DEX swaps and Zest Protocol lending/borrowing
• Stacking/PoX - Stacking status and delegation
• BNS Domains - .btc domain lookups and management (V1 + V2)
• x402 Payments - Automatic payment handling for paid APIs

Quick Start

Claude Code (Terminal)

npx @aibtc/mcp-server@latest --install

That's it! This automatically configures Claude Code. Restart your terminal and start chatting.

Claude Desktop (App)

npx @aibtc/mcp-server@latest --install --desktop

This detects your OS and writes to the correct Claude Desktop config file:

Restart Claude Desktop after installing.

Testnet Mode

Add --testnet to either command:

# Claude Code on testnet
npx @aibtc/mcp-server@latest --install --testnet

# Claude Desktop on testnet
npx @aibtc/mcp-server@latest --install --desktop --testnet

Why npx? Using npx @aibtc/mcp-server@latest ensures you always get the newest version automatically. Global installs (npm install -g) won't auto-update.

Manual Configuration

If you prefer to configure manually, add the following to your config file.

Claude Code (~/.claude.json):

{
  "mcpServers": {
    "aibtc": {
      "command": "npx",
      "args": ["@aibtc/mcp-server@latest"],
      "env": {
        "NETWORK": "mainnet"
      }
    }
  }
}

Claude Desktop (claude_desktop_config.json -- see path table above):

{
  "mcpServers": {
    "aibtc": {
      "command": "npx",
      "args": ["-y", "@aibtc/mcp-server@latest"],
      "env": {
        "NETWORK": "mainnet"
      }
    }
  }
}

Note: Claude Desktop requires the -y flag in args so npx doesn't prompt for confirmation.

Giving Claude a Wallet

When you first use @aibtc/mcp-server, Claude doesn't have a wallet. Here's the smooth onboarding flow:

Example Conversation

You: What's your wallet address?

Claude: I don't have a wallet yet. Would you like to assign me one?
        I can either create a fresh wallet or you can import an existing one.

You: Create a new wallet called "agent-wallet"

Claude: What password should I use to protect the wallet?

You: use "secure123password"

Claude: I now have a wallet! My address is ST1ABC...XYZ

        IMPORTANT: Please save this recovery phrase securely:
        "word1 word2 word3 ... word24"

        This phrase will NOT be shown again. It's the only way to recover
        the wallet if the password is forgotten.

You: Send 10 STX to ST2DEF...

Claude: Done! I've sent 10 STX to ST2DEF...
        Transaction: 0x123...

Wallet States

... View full README on GitHub