Using TOKENOPEN API with Claude

Use Claude CLI with TOKENOPEN API to access platform models directly from your terminal

Claude CLI is Anthropic's official command-line tool for conversing with Claude models, running code, and more — directly from your terminal. By pointing it at the TOKENOPEN API endpoint, you can seamlessly use all models available on the platform.

Step 1: Install Claude CLI

Follow the official Anthropic documentation to install Claude CLI:

👉 https://docs.anthropic.com/en/docs/claude-code/getting-started

Claude CLI supports macOS, Linux, and Windows (WSL). Make sure Node.js 18+ is installed before proceeding.

Once installed, verify the installation by running:

claude --version

Step 2: Configure TOKENOPEN API

Claude CLI supports custom API endpoints and keys via a config file — no source code changes needed.

Get an API Key

Set the Claude Config File

Open the config file with a terminal editor:

vim ~/.claude/settings.json

Add the following content to the file:

{
  "hasCompletedOnboarding": true,
  "env": {
    "ANTHROPIC_AUTH_TOKEN": "replace-with-your-api-key",
    "ANTHROPIC_BASE_URL": "https://www.tokenopen.ai",
    "API_TIMEOUT_MS": "300000",
    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": 1
  }
}

Press Esc to exit insert mode, then save and quit with:

:wq!

Open the config file with a terminal editor:

vim ~/.claude/settings.json

Add the following content to the file:

{
  "hasCompletedOnboarding": true,
  "env": {
    "ANTHROPIC_AUTH_TOKEN": "replace-with-your-api-key",
    "ANTHROPIC_BASE_URL": "https://www.tokenopen.ai",
    "API_TIMEOUT_MS": "300000",
    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": 1
  }
}

Press Esc to exit insert mode, then save and quit with:

:wq!

Alternatively, open the file in TextEdit:

open -e ~/.claude/settings.json

Run the following command in PowerShell to create and write the config file automatically:

New-Item -ItemType Directory -Force -Path "$env:USERPROFILE\.claude" | Out-Null

@'
{
  "hasCompletedOnboarding": true,
  "env": {
    "ANTHROPIC_AUTH_TOKEN": "replace-with-your-api-key",
    "ANTHROPIC_BASE_URL": "https://www.tokenopen.ai",
    "API_TIMEOUT_MS": "300000",
    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": 1
  }
}
'@ | Set-Content -Path "$env:USERPROFILE\.claude\settings.json" -Encoding UTF8

Or open it directly in Notepad:

notepad "$env:USERPROFILE\.claude\settings.json"

Step 3: Use Claude CLI

With the configuration in place, all Claude CLI requests will be automatically routed through the TOKENOPEN API.

Interactive Chat

Start an interactive session in your terminal:

claude

Claude CLI interactive interface

Type your questions directly in the session. Enter /exit or press Ctrl+C to quit.

Switch Models

By default, Claude CLI uses the platform's default model. To switch to a specific model inside the interactive session:

/model claude-haiku-4-5-20251001

Claude CLI switch model

Supported Claude models on TOKENOPEN (examples):

Model ID	Description
`claude-sonnet-4-6`	Claude Sonnet 4.6, latest balanced model
`claude-opus-4-5`	Claude Opus 4.5, flagship reasoning model
`claude-sonnet-4-5`	Claude Sonnet 4.5, balanced performance & speed
`claude-haiku-4-5-20251001`	Claude Haiku 4.5, ultra-fast lightweight model

For the full model list and pricing, visit the Model Marketplace.

One-Shot Query

For a quick question without entering interactive mode, use the -p flag:

claude -p "Write a bubble sort algorithm in Python"

Use Inside a Project

Launch Claude CLI from within your project directory — it will automatically read the file structure to assist with coding and debugging:

cd your-project
claude

Claude CLI can read and write local files, making it ideal for code review, refactoring, documentation generation, and more.

Using TOKENOPEN API with Claude

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