> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/ai-stack/ai-coding/cli-tools.md).

# CLI Tools

> AI Coding tools driven from the command line (terminal) — declare the Base URL and API key via environment variables. Suited for developers, and for **Linux / WSL** users.

Before installing, see [Prerequisites](/ai-stack/ai-coding/getting-started.md).

{% hint style="warning" %}
Every page below has **separate tabs for PAYG and Token Plan** in its configuration section. Settle your service type first (go by where you got your key), then copy only from that tab — a key and Base URL from different service types return `401 Unauthorized`.
{% endhint %}

* [Claude Code](/ai-stack/ai-coding/cli-tools/claude-code.md)
* [Codex CLI](/ai-stack/ai-coding/cli-tools/codex-cli.md)
* [OpenCode](/ai-stack/ai-coding/cli-tools/opencode.md)