How to Use Claude in Chatbox with apito.ai: Desktop, Mobile, and Web Setup Guide

Many people want to use Claude without opening a browser, logging into a website, and waiting for the web app to load every time.

There is another practical issue: browser-based chat history is tied to the web app account and environment. If you want a local desktop client, local chat storage, easier exports, and quick switching between Claude, GPT, DeepSeek, Gemini, or local models, a dedicated client is often more convenient.

Chatbox solves that problem.

It is an AI chat client available on desktop, mobile, and web. You can connect multiple model providers, keep conversations locally, and use Claude through an API endpoint instead of relying only on a browser session.

This guide shows how to configure Chatbox with Claude API access through apito.ai. No coding is required.

What is Chatbox?

Chatbox is an AI chat client designed around one idea:

One interface for multiple AI models.

One interface for multiple AI models.

Instead of using one app for Claude, another for GPT, and another for local models, you can manage them from one client and switch models from the UI.

Core features:

• Windows, macOS, Linux, iOS, Android, and web support
• local conversation storage
• multiple model providers
• custom API endpoint support
• open-source community edition
• export and import options for chat records

Compared with using Claude only in the browser:

If you use Claude occasionally, the web app may be enough.

If you use AI daily, switch between models, or want local records, Chatbox is a better fit.

Step 1: Download Chatbox

Visit the official website:

chatboxai.app

Choose the version for your device:

• Windows: download the .exe installer
• macOS: choose Intel or Apple Silicon, then drag the app into Applications
• Linux: use the AppImage or .deb package
• iOS: install from the App Store
• Android: download from the official website or install from Google Play where available
• Web: open web.chatboxai.app

After installation, open Chatbox. You should see a clean chat interface with the conversation list on the left and the active chat area on the right.

On some Android devices, third-party APK installation may require disabling vendor-specific strict installation modes before installing the APK.

Step 2: Get a Claude API key from apito.ai

Chatbox is only the client. To use Claude, you need API access.

This guide uses apito.ai as the Claude API access layer.

Why use apito.ai?

For users who cannot easily access Anthropic’s official API directly, common issues include payment, network stability, and endpoint access.

apito.ai is an independent third-party Claude API access service. It provides a Claude-compatible access layer and supports custom API host configuration in tools such as Chatbox.

Use the following as the working configuration for this guide:

API Host / Base URL: https://gw.apito.ai

API Host / Base URL: https://gw.apito.ai

Available models, pricing, quotas, and routing behavior should always follow the live apito.ai console.

Create and copy your key

1. Visit apito.ai
2. Create an account
3. Open the console
4. Create a new API key

Copy the key from the key list.

You will need two values:

API Key: your copied apito.ai key
API Host: https://gw.apito.ai

API Key: your copied apito.ai key
API Host: https://gw.apito.ai

Step 3: Configure Chatbox on desktop

The Windows and macOS flows are similar.

1. Open Settings

Launch Chatbox and click the gear icon in the lower-left corner.

If this is your first launch, choose the option to use your own API key or local model.

2. Choose the provider

In the model provider list, choose Claude if your Chatbox version provides a Claude API option.

If your version does not show a dedicated Claude option, choose an OpenAI-compatible or custom API provider and set the API format according to the options available in your Chatbox version.

Chatbox versions change over time, so the exact labels may differ. The important fields are the API key, API host, and model name.

3. Fill in API settings

Use the following values:

Do not add /v1 manually unless your Chatbox version explicitly requires it. In the screenshot from the source draft, Chatbox previews the final request path after the API host is entered.

4. Choose a model

Chatbox supports manual model names and may also support fetching available models from the API.

Examples shown in the source draft include:

Treat this as an example list for apito.ai users. The exact models available to your account should be checked in the apito.ai console.

If you are unsure, start with the default or recommended Sonnet model shown in your console.

5. Save and test

Click Save, then use Chatbox’s connection test button if available.

If configured correctly, Chatbox should show a successful connection test for basic text requests.

Return to the main chat page, start a new conversation, and send:

Hello

Hello

If Claude replies, the setup is complete.

You can switch models from the selector at the bottom of the chat interface.

Mobile setup: iOS and Android

Mobile setup is similar to desktop.

iOS

1. Install Chatbox from the App Store.
2. Open the app.
3. Open Settings.
4. Go to model providers.
5. Choose Claude API or the compatible custom provider option.
6. Enter your apito.ai API key.
7. Enter https://gw.apito.ai as the API host.
8. Choose or enter a model name.
9. Save and test.

Android

1. Install Chatbox from the official website or Google Play where available.
2. If installing an APK, allow third-party installation if your phone blocks it.
3. Open Settings.
4. Go to model providers.
5. Choose Claude API or the compatible custom provider option.
6. Enter the same API key and API host.
7. Save and test.

Mobile notes:

• Mobile Chatbox uses remote APIs for Claude.
• Use Wi-Fi if you plan to send long prompts or images.
• Mobile network usage may consume additional data.

Web version setup

If you do not want to install an app, use the web version:

web.chatboxai.app

Steps:

1. Open the web app.
2. Choose the option to use your own API key.
3. Open Settings.
4. Choose Claude API or a compatible custom provider.
5. Enter your apito.ai API key.
6. Enter https://gw.apito.ai as the API host.
7. Enter a model name.
8. Save and test.

The web version is useful for temporary use. Keep in mind that browser storage can be cleared, so export important conversations if needed.

Troubleshooting

401 Unauthorized

Cause:

• the API key is incorrect
• the key has expired
• the key belongs to a different provider

Fix:

• copy the key again from apito.ai
• check for extra spaces
• confirm the key is active
• confirm the API host and key come from the same provider

404 Not Found

Cause:

• wrong API host
• duplicate /v1 path
• trailing path mismatch

Fix:

Use:

https://gw.apito.ai

https://gw.apito.ai

Do not manually append /v1 unless your Chatbox version specifically asks for it.

429 Too Many Requests

Cause:

• request rate limit
• too many rapid messages
• quota or concurrency limits

Fix:

• slow down requests
• check usage and rate limits in the apito.ai console
• reduce parallel requests
• contact support if your workflow needs higher limits

Timeout or connection failure

Cause:

• local network issue
• firewall or proxy blocking Chatbox
• unstable connection

Fix:

• test another network
• check firewall permissions
• try a mobile hotspot
• confirm the API host is reachable

Model name not recognized

Cause:

• model name typo
• model not enabled for your account
• provider-side model naming changed

Fix:

• copy the model name from the apito.ai console
• preserve hyphens and casing
• use Chatbox’s fetch-model feature if available

Advanced tips

Set a system prompt

Chatbox lets you set a system prompt for a conversation. This is useful when you want Claude to answer in a consistent style.

Example:

You are a technical documentation editor.
When answering:
1. Use concise, clear English.
2. Wrap code examples in Markdown code blocks.
3. Briefly explain technical terms when they first appear.

You are a technical documentation editor.
When answering:
1. Use concise, clear English.
2. Wrap code examples in Markdown code blocks.
3. Briefly explain technical terms when they first appear.

Adjust temperature

Temperature controls randomness:

For daily use, 0.7 is a reasonable starting point.

Configure multiple providers

Chatbox can manage multiple model providers. You can configure Claude API, GPT-compatible APIs, local models, or other services, then switch models from the UI.

Export chat history

Because Chatbox stores conversations locally, exporting matters.

Common export formats include:

• Markdown for reading and archiving
• JSON for migration and backup

Use prompt templates

If you often reuse the same prompt, save it as a shortcut or prompt template.

Example weekly report template:

Generate a weekly report from the following notes:
1. Work completed this week
2. Problems encountered
3. Plan for next week

Format:
- three sections
- 3-5 bullets per section
- concise language

Generate a weekly report from the following notes:
1. Work completed this week
2. Problems encountered
3. Plan for next week

Format:
- three sections
- 3-5 bullets per section
- concise language

This reduces repetitive typing and keeps output structure stable.

Summary

The setup has three steps:

1. Download Chatbox from chatboxai.app.
2. Create an API key on apito.ai.
3. In Chatbox, set the API key and API host:

https://gw.apito.ai

https://gw.apito.ai

This setup is useful if you want:

• a desktop or mobile Claude client
• local conversation records
• multiple model providers in one interface
• API-based usage instead of only browser-based access
• flexible exports and backups

Chatbox handles the client experience. apito.ai handles the Claude API access layer. Model availability, pricing, quotas, and API behavior should always follow the live apito.ai console.

Sources

• Chatbox official website: chatboxai.app
• Chatbox web app: web.chatboxai.app
• Chatbox GitHub organization: ChatboxAI
• Chatbox repository: chatboxai/chatbox
• Anthropic API docs: Messages API
• apito.ai: Homepage

Disclosure

ClaudeAPI / apito.ai is an independent third-party technical service and is not affiliated with Anthropic or Chatbox.