Chapter 2: Setting Up (10 Minutes, We Promise)

One-line summary: Three installs and you're ready to build on Bitcoin. Here's exactly how.

#First: What's a Terminal?

You'll need to use a terminal once to install Bob. That's it.

A terminal is a text window where you type commands directly to your computer. It sounds scary. It's not. Think of it like texting your computer one specific instruction.

On Mac: Press Cmd + Space, type "Terminal", hit Enter. On Windows: Press the Windows key, type "PowerShell", hit Enter.

You'll see a black (or white) window with a blinking cursor. Perfect. That's all you need.

#Step 1: Add Bob to Claude Code

Bob works through Claude Code — Anthropic's AI coding agent. If you don't have Claude Code yet, install it from claude.ai/code.

Once you have Claude Code open, paste this command into your terminal:

claude mcp add opnet-bob --transport http https://ai.opnet.org/mcp

That's it. One line. This connects Bob's OP_NET brain to your Claude Code session. Now when you talk to Claude, it knows how to build Bitcoin apps.

If you see an error, paste it back into Claude and it'll help you fix it.

What just happened? You connected Bob's OP_NET knowledge (smart contracts, tokens, wallets, deployment) to Claude Code. Think of it like giving Claude a Bitcoin toolkit.

#Step 2: Install OPWallet

OPWallet is a browser extension — like an ad blocker or a password manager, but for Bitcoin.

Think of it as your Bitcoin wallet that lives in your browser. It lets your apps interact with real (and test) Bitcoin.

1. Open Chrome or Brave browser
2. Search "OPWallet browser extension" or go to the Chrome Web Store
3. Click Add to Chrome
4. Pin it to your toolbar (the little puzzle piece icon → pin OPWallet)

You'll see the OPWallet icon appear in your browser. Click it, create a wallet, and save your recovery phrase somewhere safe (a notes app is fine for test wallets).

#Step 3: Get Test Bitcoin

This is free test Bitcoin for building. It costs nothing. You can't lose real money with it.

1. Open OPWallet
2. Switch the network to Testnet (look for a network dropdown — like how you'd switch between WiFi networks)
3. Go to the faucet at faucet.opnet.org to get free test Bitcoin

The faucet is just a "free test money dispenser." Paste your wallet address, click the button, and you'll have test Bitcoin in seconds.

#What's Testnet?

Testnet = a sandbox. A practice environment. Test Bitcoin that exists just for building and testing.

Nothing you do on testnet costs real money. Nothing breaks anything real. You can mess up, reset, start over — completely consequence-free.

It's like a flight simulator before you fly the real plane. Except the plane is a Bitcoin app, and you're the pilot.

#You're Ready

That's it. Three things:

• Bob (OP_NET MCP) connected to Claude Code
• OPWallet in your browser
• Test Bitcoin in your wallet

You are now more set up than 99% of people who want to build on Bitcoin.

Next up: Having your first conversation with Bob. →