Install Codex CLI (npm or Homebrew) and Connect It to TeamoRouter

Codex CLI is OpenAI's terminal-based AI coding assistant. Install it first (section 1), then connect it to TeamoRouter (section 2). If Codex is already installed, skip straight to section 2.

1. Install Codex

• Codex requires Node.js 22 or later. Install it from the official installer or via Homebrew (brew install node).

• macOS users can also install Codex with Homebrew: brew install codex.
• In your terminal, run:

npm install -g @openai/codex

• After installation, check the version:

codex --version

Update, uninstall and common install errors

• codex: command not found after installing: npm's global folder is not on your PATH. Run npm config get prefix, add the bin folder under that path to PATH in ~/.zshrc or ~/.bashrc, then open a new terminal.
• EACCES: permission denied during npm install -g: your global npm folder belongs to root. Install Node.js through a version manager such as nvm (recommended), or point npm to a folder you own with npm config set prefix ~/.npm-global and add ~/.npm-global/bin to PATH. Avoid sudo npm install -g.
• Errors about the Node.js version: run node -v. Codex needs Node.js 22 or later; upgrade Node.js and install Codex again.

2. Connect to TeamoRouter

Configure the provider

macOS / Linux

Open a terminal, paste the full block below, and press Enter:

mkdir -p ~/.codex && cat > ~/.codex/config.toml <<'EOF'
model_provider = "teamorouter"
model = "gpt-6-sol"
model_reasoning_effort = "high"
[model_providers.teamorouter]
name = "TeamoRouter"
base_url = "https://api.teamorouter.ai/v1"
env_key = "OPENAI_API_KEY"
wire_api = "responses"
EOF

Windows

Open PowerShell and run:

New-Item -ItemType Directory -Force -Path "$HOME\.codex" | Out-Null
@'
model_provider = "teamorouter"
model = "gpt-6-sol"
model_reasoning_effort = "high"

[model_providers.teamorouter]
name = "TeamoRouter"
base_url = "https://api.teamorouter.ai/v1"
env_key = "OPENAI_API_KEY"
wire_api = "responses"
'@ | Set-Content -Path "$HOME\.codex\config.toml" -Encoding UTF8

Set the API key

Replace <your-TeamoRouter-key> with the API key you created in the TeamoRouter dashboard.

macOS

echo 'export OPENAI_API_KEY="<your-TeamoRouter-key>"' >> ~/.zshrc
source ~/.zshrc

Linux

echo 'export OPENAI_API_KEY="<your-TeamoRouter-key>"' >> ~/.bashrc
source ~/.bashrc

Windows

[Environment]::SetEnvironmentVariable("OPENAI_API_KEY", "<your-TeamoRouter-key>", "User")

After both steps, run codex in the terminal. It will use TeamoRouter.

3. Enable Fast mode (optional)

Fast mode makes GPT-series models respond faster (gpt-5.6-sol runs up to 2.5x faster than Standard), billed at 2x the standard rate.

To enable it for the current session, type this inside Codex:

/fast

(/fast is a toggle — type it again to turn it off.)

To enable it permanently, add this line at the top of ~/.codex/config.toml:

service_tier = "fast"

All requests under this config will then use Fast mode.

Pay with USDT or USDC

You don't need a credit card to use Codex CLI with TeamoRouter. Top up your balance with USDT, USDC or ETH straight from an exchange app (Binance, OKX and others) or any wallet: click Pay with crypto in the top-up dialog, pick a coin and network, and send. The minimum is $5 (USDT on BEP20), and no browser extension is needed. Step by step: Pay for Claude and GPT APIs with crypto (USDT).