For macOS · requires Claude Code

Your unlimited interview assistant.

Zero extra AI fees.

No session caps. ProxyBrain runs entirely through the AI agent you already have — Claude Code, Antigravity, or Codex — so there's no separate LLM bill stacked on top of what you already pay. Buy it once; use it unlimited.

Get ProxyBrain — $99 How it works

Runs on Claude Code today. Antigravity and Codex are next.

$ proxybrain --mode evaluate

✓ harness detected — claude-code (connected)

✓ agent loaded — Interview · Backend

→ listening… press ⌘⇧L to answer

See it in action

45 seconds, start to finish — the shortcut, the live answer, the score.

What's actually in it

Five real things, not a feature-grid of filler.

Answer

We scaled the service from 2k to 40k requests/sec by moving session state

Assist & Evaluate

Live help while you're in the interview. A real score afterward, so you know exactly how you did.

⌘ ⇧ L

Realtime Answer

It's already been listening. Press one shortcut and it answers instantly — no typing.

⌘ ⇧ L

Strong

A Report You Can Trust

Shows exactly what you did well and where to improve, based on your actual performance.

HarnessConnected

SkillBackend Interview

ResumeAttached

Your Own Agent

Knows exactly what interview you're preparing for and tailors itself around your real background.

resume.pdf · parsed

4 yrs · distributed systems Go · Kafka · Postgres

Reads Your Resume

Every answer personalized in real time — grounded in your real experience, not a generic script.

BYOS

Bring your own subscription.

Claude Code today. Codex, Gemini next.

Three steps

Download & activate

Install, then enter your license key or sign in with your browser. One Mac at a time.

Connect Claude Code

ProxyBrain detects your already-installed, already-authenticated CLI. No credentials touch our servers.

Assist or Evaluate

One shortcut from anywhere on your Mac. Hide it just as fast when the interview starts.

ONE LICENSE

$99

Once. Not monthly. Every future update included.

Get ProxyBrain

Pay with card, UPI, or stablecoins. Requires a separate Claude Code subscription from Anthropic.

Questions

Do I need my own AI subscription?

Yes — ProxyBrain connects to the Claude Code CLI already on your Mac today. Codex and Gemini support is coming next.

What if I switch Macs?

Deactivate your license on the old one, activate on the new one. Lost or wiped the old Mac? Sign in at your account and free the seat from there instead.

Is my interview data private?

Nothing you say is routed through our servers — it runs entirely through your own Claude Code session.

Do I get future updates?

Yes — the $99 includes every update ProxyBrain ships after, for good.