Claude Code

Configure Claude Code to connect through ApexOne.

Prerequisites

Before installing Claude Code, make sure the following are installed:

• Node.js 22 or later
• Git

Install PrerequisitesSet up Node.js and Git for your OS.

Install Claude Code

Install Claude Code globally:

npm install -g @anthropic-ai/claude-code

Verify the installation:

claude --version

If a version number is displayed, Claude Code has been installed successfully.

Configure Claude Code

Claude Code stores its configuration in the .claude directory inside your user home folder.

Configuration location

Windows

%USERPROFILE%\.claude

Create the directory if it does not already exist:

mkdir %USERPROFILE%\.claude

macOS

~/.claude

Create the directory if it does not already exist:

mkdir -p ~/.claude

Linux

~/.claude

Create the directory if it does not already exist:

mkdir -p ~/.claude

Create settings.json

Create or edit ~/.claude/settings.json:

~/.claude/settings.json

{
  "env": {
    "ANTHROPIC_AUTH_TOKEN": "YOUR_API_KEY",
    "ANTHROPIC_BASE_URL": "https://api.apex1.us",
    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": "1"
  }
}

Note

Replace YOUR_API_KEY with your ApexOne API key from Dashboard → API Keys.

Configuration reference

Variable	Description
ANTHROPIC_AUTH_TOKEN	Your ApexOne API key
ANTHROPIC_BASE_URL	The ApexOne API endpoint (https://api.apex1.us)
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC	Disables optional network traffic for better privacy

Verify your setup

1. Launch Claude Code from any project directory:

   claude

2. Open the status screen:

   /status

   Confirm that the ApexOne base URL (https://api.apex1.us) is shown as the configured API endpoint.

3. Send a simple message:

   > hi

   A successful reply confirms your setup:

   Hello! How can I help you today?

Tip

The /status output above is representative — exact fields vary by Claude Code version. You can also confirm the call (and its inference receipt) in the ApexOne Dashboard.

Troubleshooting

Authentication failed

Verify that your API key is valid, ANTHROPIC_AUTH_TOKEN is set correctly, and ANTHROPIC_BASE_URL points to https://api.apex1.us.

Unable to connect

Confirm your network can reach https://api.apex1.us, and check for corporate proxies or firewalls blocking outbound HTTPS.

Update Claude Code

npm install -g @anthropic-ai/claude-code@latest

Related

FAQCommon errors and answers.