Claude Code Installation Guide for China: A Beginner's Quick Start

Before We Begin

Claude Code, Anthropic's command-line AI coding tool, has been generating significant buzz in developer communities. For users in China, setting up the environment is often the first major hurdle — most tutorials require tools that aren't beginner-friendly. This guide compiles a beginner-oriented approach to installing Claude Code in a domestic (China-based) environment, helping you get the basic workflow running in a relatively short time.

A word of caution: this article is based on materials from a Bilibili tutorial. The third-party "installation packages" and "one-click scripts" mentioned carry real security and compliance risks. Always vet your sources carefully — official channels are always the safest option.

What Is Claude Code

Claude Code is an AI coding assistant that runs in the terminal (command line). It brings the capabilities of Claude models directly into your development environment — reading code, executing commands, assisting with debugging and refactoring. Compared to a web-based chat interface, the command-line tool's advantage lies in its ability to directly manipulate local project files, enabling a more seamless workflow.

For newcomers, understanding what it is and isn't is important: it's not a graphical application — it operates through terminal interaction. Once installed, day-to-day usage is driven primarily by typed commands.

From a technical architecture standpoint, Claude Code is essentially a local CLI (Command Line Interface) client that calls remote Claude large language models via API. Its key difference from AI coding tools like GitHub Copilot or Cursor is that it doesn't attach to a specific IDE (Integrated Development Environment) — it operates at the operating system's shell level, meaning it can theoretically run in any environment with a terminal. This means it can read and modify files in any directory, and execute shell commands on your behalf — which is both its strength and why careful permission management matters. Claude Code is developed by Anthropic and calls Claude-series models (such as Claude 3.5 Sonnet) under the hood. It's distributed as an npm package, and a proper installation requires a Node.js environment and a valid Anthropic API Key.

Installation Preparation and Basic Steps

Based on the tutorial demonstration, the entire process is simplified into a few actions. The core idea: obtain a key (API key), run the installation script, then launch from the terminal.

Step 1: Prepare Your API Key

Open a browser, navigate to the specified page as prompted, and obtain the key used for authentication. This step is essentially authorizing the tool — it's the credential that enables subsequent model calls. Keep your key secure and never share it with others.

The "key" here refers to an Anthropic API Key — the authentication credential for calling Claude model APIs, typically a random string starting with sk-ant-. The official way to get one is to register an account on Anthropic's website, then generate a key from the API Keys page in the console at console.anthropic.com. API Keys are tied to your account's usage quota, and every model call incurs a charge — so a leaked key can result in financial losses. One important caution: keys provided by third-party tutorials may be distributed by relay service operators who purchased them in bulk. Your requests and code content will actually pass through their servers, which is one of the primary sources of security risk.

Step 2: Run the Installation Script

The tutorial completes installation by double-clicking a text script. Before running it, configure the key from the previous step. When the command-line interface shows a success message and prompts for display mode selection, you can typically keep the default option and press Enter to confirm.

Step 3: Launch in the Terminal

After installation, close the window, right-click in your target folder to open a command-line interface, and enter the launch command to enter Claude Code's interactive interface.

A Note on "No VPN Required"

The source material emphasizes that this approach works in a "purely domestic environment" with no additional network tools required. While this does address a real pain point for many beginners, it's worth approaching with clear eyes: Claude's official services are hosted overseas, and so-called domestic direct-access solutions typically rely on third-party relay or proxy services, with inherent uncertainty around stability, data security, and long-term availability.

From a practical standpoint: if you're just looking to explore and learn, these solutions can serve as a quick entry point. But for any formal projects or sensitive code, it's strongly advisable to evaluate the official channels and compliance risks — avoid passing important data through relay services of unknown origin.

Technically speaking, "third-party relay" services typically work by deploying a reverse proxy on a domestic server, forwarding requests destined for api.anthropic.com and returning the results to the user. This allows domestic IP addresses to access blocked overseas endpoints, creating a "direct connection" effect. The trade-off is that all your prompts and model responses pass through that relay server in plaintext, meaning the operator can theoretically log and use that data. Furthermore, such services operate in a legal gray area and face the constant risk of being shut down — a workflow dependent on them could break without any warning. For beginners simply evaluating Claude Code's capabilities, short-term use may be acceptable; for production projects involving business logic or client data, the risks of such solutions should not be overlooked.

Tips for Going Further

Once basic installation is complete, Claude Code's real value shows up in actual coding scenarios. It can help you understand unfamiliar codebases, make bulk file edits, generate test cases, and even implement small feature modules from natural language descriptions.

For beginners, it's recommended to first get comfortable with command interaction on a small practice project, gradually learning how it reads context and executes operations. The official documentation typically includes more detailed command references and use case examples — spending time reading through it is far more valuable in the long run than simply copying installation scripts.

Summary

For beginners in China, lowering the barrier to entry for Claude Code is genuinely worthwhile, and one-click installation ideas make "getting it running" much simpler. But how useful the tool actually is ultimately depends on whether you can internalize the command-line interaction logic and put it to work on real projects. Installation is just the starting point — continuous learning is what matters most. At the same time, always exercise caution with any third-party installation packages and prioritize trustworthy sources.