CC-Switch + Crazyrouter: Claude Code Base URL Setup Guide

If you use AI coding agents like Claude Code, OpenAI Codex, Gemini CLI, or OpenCode, you know the pain of managing API keys, base URLs, and config files across multiple tools. CC-Switch is a third-party desktop app that can help manage those local settings. Crazyrouter can be added as a unified API endpoint, but compatibility depends on the installed tool version and the config fields that tool currently supports.

What is CC-Switch?#

CC-Switch is an open-source desktop application (18,000+ stars on GitHub) built with Tauri 2 that lets you manage all your AI CLI coding agents from one place:

• Claude Code - Anthropic's terminal AI assistant
• OpenAI Codex - OpenAI's coding agent
• Gemini CLI - Google's command-line AI tool
• OpenCode - Open-source AI coding assistant

Instead of manually editing files such as ~/.claude/settings.json, ~/.codex/auth.json, or ~/.gemini/.env, CC-Switch gives you a GUI for switching supported provider settings. Always confirm the generated config against the current documentation for Claude Code, Codex, Gemini CLI, or OpenCode before relying on it in production.

Why Use Crazyrouter with CC-Switch?#

Crazyrouter provides unified API access to 300+ AI models through a single endpoint. When paired with CC-Switch, you get:

Setup Guide#

Step 1: Install CC-Switch#

Download CC-Switch for your platform:

• Windows: MSI installer or portable ZIP from GitHub Releases
• macOS: brew install --cask farion1231/tap/cc-switch
• Linux: DEB, RPM, AppImage, or Flatpak available

Step 2: Add Crazyrouter as a Provider#

1. Open CC-Switch
2. Click "Add Provider"
3. Fill in the configuration:

Don't have a Crazyrouter account yet? Sign up here to get the exclusive CC-Switch bonus.

4. Click Save

Step 3: Configure Models (Optional)#

CC-Switch supports granular model configuration with 4 tiers:

• Haiku tier - Fast, lightweight models (e.g., claude-sonnet-4-20250514)
• Sonnet tier - Balanced performance (e.g., claude-sonnet-4-20250514)
• Opus tier - Maximum capability (e.g., claude-opus-4-20250514)
• Custom - Any model available on Crazyrouter

Since Crazyrouter supports 300+ models, you can configure any combination across tiers.

Step 4: Switch with One Click#

Once configured, switching to Crazyrouter should only take a few clicks:

• From the app: Click the Crazyrouter entry in your provider list
• From system tray: Right-click the CC-Switch icon → select Crazyrouter
• Via deep link: Use ccswitch:// protocol links for one-click import

CC-Switch automatically updates the config files for whichever AI tools you have installed.

MCP Server Management#

CC-Switch also provides a unified panel for managing MCP (Model Context Protocol) servers across all your AI tools. This means you can:

• Add MCP servers once and sync them to Claude Code, Codex, and Gemini CLI
• Toggle servers on/off per tool
• Import/export MCP configurations
• Use built-in templates for common servers (filesystem, fetch, etc.)

This is usually independent of your API provider, but check each coding tool's current MCP support before assuming every server syncs across every client.

Speed Testing#

CC-Switch includes a built-in speed test feature. You can measure the latency of your Crazyrouter endpoint compared to other providers, helping you choose the fastest option for your region.

Exclusive CC-Switch Bonus#

If the CC-Switch referral promotion is still active, users who sign up for Crazyrouter through CC-Switch may get a 30% bonus on their first top-up:

1. Register at crazyrouter.com/register?ref=cc-switch
2. Use redemption code CCSWITCH on your first top-up
3. Confirm the promotion on the checkout or account page before topping up

For example, a 30% active promotion would turn a $10 top-up into$13 in credits, but promotion rules can change.

Quick Reference#

Crazyrouter API Configuration#

API Base URL: https://ai.crazyrouter.us
API Key: sk-xxxxxxxxxxxx (create at crazyrouter.com → API Tokens)

Supported Tools#

System Requirements#

• Windows 10+, macOS 10.15+, or Linux (Ubuntu 22.04+, Debian 11+, Fedora 34+)
• Node.js 18+ (for Claude Code / Gemini CLI)
• Any of the supported AI coding tools installed

Summary#

CC-Switch can reduce the hassle of managing multiple AI coding agent configurations. Combined with Crazyrouter's unified API access to 300+ models, you get a cleaner workflow when your installed tools support the relevant base URL and API key settings:

1. One app to manage all your AI coding tools
2. One API key to access all models
3. One click to switch between providers

Get started by downloading CC-Switch, adding Crazyrouter as a provider, and checking the current Crazyrouter account page for any active referral or top-up promotion.

Related Claude and CrazyRouter guides#

• Claude API Key setup
• Anthropic billing and Claude API cost control
• Claude API payment methods and alternatives
• Claude Code with CrazyRouter
• Claude API card declined fixes
• Claude Sonnet vs Opus for coding agents
• OpenRouter vs CrazyRouter for AI API routing