> ## Documentation Index
> Fetch the complete documentation index at: https://novita.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Claude Code

Claude Code is an AI-powered coding assistance published by Anthropic that provides a terminal interface, allowing developers to delegate complex programming tasks directly from the terminal to Claude Code for completion.

Now, Novita provides [Anthropic SDK compatible LLM API services](/guides/llm-anthropic-compatibility), enabling you to easily use Novita LLM models in Claude Code to complete tasks. Please refer to the guide below to complete the integration process.

## Quick Start

### 1. Install Claude Code

<Warning>
  Before installing Claude Code, please ensure your local environment has [Node.js 18 or higher](https://nodejs.org/en/download/) installed.
</Warning>

To install Claude Code, run the following command:

<CodeGroup>
  ```bash Bash icon=terminal theme={"system"}
  npm install -g @anthropic-ai/claude-code
  ```
</CodeGroup>

### 2. Start your first session

<Tip>
  import { SetupApiKeyGuide } from '/snippets/setup-api-key-guide.mdx';

  <SetupApiKeyGuide />
</Tip>

<Tip>
  Please find the list of models currently available for use in Claude Code [here](/guides/llm-anthropic-compatibility#supported-models).
</Tip>

Open the terminal and set up environment variables as follows:

<CodeGroup>
  ```bash Bash icon=terminal theme={"system"}
  # Set the Anthropic SDK compatible API endpoint provided by Novita.
  export ANTHROPIC_BASE_URL="https://api.novita.ai/anthropic"
  export ANTHROPIC_AUTH_TOKEN="<Novita API Key>"
  # Set the model provided by Novita.
  export ANTHROPIC_MODEL="moonshotai/kimi-k2-instruct"
  export ANTHROPIC_SMALL_FAST_MODEL="moonshotai/kimi-k2-instruct"
  ```
</CodeGroup>

Next, navigate to your project directory and start Claude Code. You will see the Claude Code prompt inside a new interactive session:

<CodeGroup>
  ```bash Bash icon=terminal theme={"system"}
  cd <your-project-directory>
  claude .
  ```
</CodeGroup>

<Frame>
  <img height="400" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/init.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=74dd26e7f32565696fc704eba5408e04" data-path="guides/images/claude-code/init.png" />
</Frame>

### 3. Build a web game from scratch

Input your task description, then press `Enter` to start this task.

```bash Bash icon=terminal theme={"system"}
> Create a ping-pong web game. Use only HTML, CSS, and JavaScript, try to create some novel content, and the final output should be a single HTML file.
```

<Frame>
  <img height="400" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/first-prompt.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=d614b2db042b9a50aa0ef0e779c0e5c9" data-path="guides/images/claude-code/first-prompt.png" />
</Frame>

Claude Code will analyze your requirements, create a multi-step plan, and automatically begin executing the tasks.

<Frame>
  <img height="400" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/task-plan.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=fa73a52a4bea60c51c995d74b320a238" data-path="guides/images/claude-code/task-plan.png" />
</Frame>

After completing each task, Claude Code will mark it as complete and proceed to plan and explain the details of the next task.

<Frame>
  <img height="400" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/task-plan-checklist.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=90b2767ff1313a6c0eb98582a5f89cf4" data-path="guides/images/claude-code/task-plan-checklist.png" />
</Frame>

### 4. Task Results and Preview

After all tasks are completed, you will see the following messages in the terminal:

<Frame>
  <img height="400" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/task-result.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=a0b21887d4ed3838a5862c66eb9f905d" data-path="guides/images/claude-code/task-result.png" />
</Frame>

At this point, you can open the `gravity-pong.html` file in your browser to view and play the game.

<Frame>
  <img height="300" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/task-result-preview.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=966b3b2260492d703478fa62ad986025" data-path="guides/images/claude-code/task-result-preview.png" />
</Frame>

### 5. Use Git with Claude Code

Claude Code makes Git operations conversational:

```bash Bash icon=terminal theme={"system"}
> what files have I changed?
```

```bash Bash icon=terminal theme={"system"}
> commit my changes with a descriptive message
```

You can also prompt for more complex Git operations:

```bash Bash icon=terminal theme={"system"}
> create a new branch called feature/quickstart
```

```bash Bash icon=terminal theme={"system"}
> show me the last 5 commits
```

```bash Bash icon=terminal theme={"system"}
> help me resolve merge conflicts
```

### 6. Improve the game

As we can see, this game needs improvement: the orbs' position overlaps with the paddle's position, which affects the gaming experience. Next, we will reposition the orbs to the top-right corner and add game restart functionality.

```bash Bash icon=terminal theme={"system"}
> Position the orbs in the top-right corner and support game restart functionality.
```

<Frame>
  <img height="400" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/task-result-improved.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=3de002ac40157b151282f7fdd86c0819" data-path="guides/images/claude-code/task-result-improved.png" />
</Frame>

This is the game preview after the improvement:

<Frame>
  <img height="300" src="https://mintcdn.com/novitaai/H3Kjvdvlhgt0Aohj/guides/images/claude-code/task-result-improved-preview.png?fit=max&auto=format&n=H3Kjvdvlhgt0Aohj&q=85&s=0d43e2a9f61fbe4425763bca41aa4c7e" data-path="guides/images/claude-code/task-result-improved-preview.png" />
</Frame>

## Try More Workflows

For reference, the following provides some prompt examples for different workflows:

* Code Refactoring

```bash Bash icon=terminal theme={"system"}
> Please refactor the current project using Next.js framework.
```

* Write Unit Tests

```bash Bash icon=terminal theme={"system"}
> Please write some unit tests for the pricing policy in the project.
```

* Update Documentation

```bash Bash icon=terminal theme={"system"}
> Please update the installation dependencies section in the README.
```

* Code Review

```bash Bash icon=terminal theme={"system"}
> Please review the changes and provide optimization suggestions.
```

## Common Commands

| Command                     | Description                       | Example                             |
| :-------------------------- | :-------------------------------- | :---------------------------------- |
| `claude`                    | Start interactive mode            | `claude`                            |
| `claude "task description"` | Run a one-time task               | `claude "fix the build error"`      |
| `claude -p "query"`         | Run one-off query, then exit      | `claude -p "explain this function"` |
| `claude -c`                 | Continue most recent conversation | `claude -c`                         |
| `claude -r`                 | Resume a previous conversation    | `claude -r`                         |
| `claude commit`             | Create a Git commit               | `claude commit`                     |
| `/clear`                    | Clear conversation history        | `> /clear`                          |
| `/help`                     | View available commands           | `> /help`                           |
| `exit` or Ctrl+C            | Exit Claude Code                  | `> exit`                            |