Hardware Accessories for AI Coding Agents

Search for hardware for AI coding agents and you get graphics cards. This page is about the other kind, the things on the desk between you and the agent. The Pedal Three ($69) is three ribbed foot pedals on a curved steel base, and it is the accessory most people should buy first. Below is the whole category, honestly described, including what each part of it cannot do.

Accessories, or compute?

Worth settling first, because the phrase means two things. If you are running a model locally, your problem is compute and nothing here helps: buy the card. If you are using a hosted agent through a terminal or an editor, your machine is already fine and the bottleneck is the loop you sit in, which is prompt, wait, read, approve, repeat. That loop is a hardware problem in the old-fashioned sense, and it is what these things address.

What are the categories?

• Something under your foot. A foot switch sends a keystroke while your foot is down. The best binding is hold to talk, so both hands stay on the keys while you dictate a prompt.
• Something under your hand. A macropad puts the few keys you press constantly on their own block, away from everything else. The KM16 Macropad ($119) is sixteen keycaps with one large knob and two small ones. The EM Mini Pad ($75) is five keys and a knurled knob for a desk with no room left.
• Something to talk into. A dedicated microphone with a key beside it gives dictation an obvious on and off. The Voice Pad ($79) is a compact mechanical keypad supplied with a microphone, three keys and a knob. The Whisper Key ($87.90) is a clear polycarbonate handheld you hold to your mouth.
• Something that looks back at you. A light, a small screen or a desk pet, showing whether a run is going, waiting, or done.

The first three are inputs and they work the moment you plug them in, because a keystroke is a keystroke everywhere. The fourth is different, and the difference matters more than the price does.

Why is the output category harder?

Because those devices know nothing. The Status Light ($45) has no connection to Claude Code, Codex CLI, Cursor or anything else. It goes green because a command you wrote at the end of your run told it to. The Desk Terminal ($79) and the Agent Pet ($45) carry exactly the same requirement.

That wiring is usually a shell wrapper or a hook, and it is an evening of work rather than a weekend. But it is work, and anyone selling an ambient indicator without saying so is setting you up for a bad first day. Our suggested colours are red for running, amber for waiting on you, green for finished, and you are free to map them any way you please.

Which one should I buy first?

One pedal, bound to your dictation tool's push to talk key. It is the cheapest change with the largest effect on how a day feels, it needs no scripting at all, and if you hate it you have lost very little. Add a macropad second, once you know which keys you actually repeat. Add an indicator last, and only if you enjoyed writing the wrapper.

What is not worth buying?

Anything sold on the promise that it knows what your agent is doing. Nothing in this category does. Be equally wary of anything sold as working only with one named application, because the mechanism underneath is a keystroke in every case, so that is a restriction rather than a feature.

If you want the whole desk rather than one item, see desk setup for running coding agents all day.