BigBlocks MCP Server

The BigBlocks MCP (Model Context Protocol) Server provides Bitcoin development capabilities directly to AI assistants like Claude, enabling seamless Bitcoin application development.

What is MCP?

Model Context Protocol (MCP) is an open standard that allows AI assistants to securely connect to external systems and tools. The BigBlocks MCP Server exposes Bitcoin functionality as a set of tools that AI assistants can use to help you build Bitcoin applications.

Features

Component Generation - Access to 90+ BigBlocks component prompts
Bitcoin Operations - Wallet creation, transaction signing, broadcasting
BSV Blockchain - Full Bitcoin SV blockchain integration
Code Examples - Production-ready code snippets and templates
Best Practices - Bitcoin development patterns and security guidelines

Quick Start

Installation

# Install globally
npm install -g bigblocks-mcp

# Or run directly
npx bigblocks-mcp

Connect to Claude

Install the MCP Server:
```
npm install -g bigblocks-mcp
```

Add to Claude Desktop: Open Claude Desktop settings and add:

{
  "mcpServers": {
    "bigblocks": {
      "command": "npx",
      "args": ["bigblocks-mcp"]
    }
  }
}

Restart Claude Desktop and you'll see BigBlocks tools available

Available Tools

Component Tools

get_component_prompt - Get prompts for specific BigBlocks components
search_components - Search components by category or functionality
list_categories - List all available component categories

Bitcoin Tools

create_wallet - Generate new Bitcoin wallets
sign_transaction - Sign Bitcoin transactions
broadcast_transaction - Broadcast transactions to BSV network
get_balance - Check wallet balances
get_utxos - Retrieve unspent transaction outputs

Development Tools

generate_template - Create project templates with BigBlocks
validate_setup - Check development environment
get_examples - Access code examples and patterns

Example Usage

Once connected, you can ask Claude:

"Create a Bitcoin payment button component using BigBlocks"

Claude will use the MCP server to:

Fetch the appropriate component prompt
Generate the code with proper Bitcoin integration
Provide setup and usage instructions
Include security best practices

Configuration

The MCP server supports various configuration options:

{
  "mcpServers": {
    "bigblocks": {
      "command": "npx",
      "args": ["bigblocks-mcp"],
      "env": {
        "BIGBLOCKS_API_URL": "https://api.bigblocks.dev",
        "BSV_NETWORK": "mainnet"
      }
    }
  }
}

Supported AI Assistants

Claude Desktop - Full support
VS Code with MCP - Full support
Cursor - Full support
Other MCP-compatible tools - Basic support

Security

The MCP server follows security best practices:

No private keys are stored or transmitted
All Bitcoin operations use proper signing workflows
API calls are authenticated and rate-limited
Local development mode available for testing

MCP Server