Always-on brain · Free install forever

Paste one line.
Double your AI productivity.

BrainOfBrains is the always-on brain that watches your whole AI stack, cuts your bill in half, and pushes continual improvements. Free install. $5/mo unlocks everything.

PASTE THIS into Claude Code, Cursor, or Cowork

$ npx -y brainofbrains install

That's the whole install. Your assistant installs BrainOfBrains, runs a local scan, and shows you exactly how much you're overspending. No login. No credit card. Free forever.

✓ Runs on your machine ✓ Nothing uploaded ✓ KostAI included free

How it works (really, this is all of it)

No dashboard to learn. No config to tune. You paste one line and the brain takes over.

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Step 1

Paste the line

Copy it above. Paste into Claude Code, Cursor, or Cowork. Press enter. You're done doing things.

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Step 2

The brain moves in

It installs locally, learns your AI setup, and starts watching. One quiet background process. Never uploads your code.

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Step 3

You get faster & cheaper

Bill drops ~50% in week one. Productivity keeps climbing as our AI fleet pushes improvements every week. Plain-English reports, no dashboards.

2×

Productivitysame team, same hours

50%

Bill cutClaude, Cursor, Codex, Gemini

$5/mo

Flat pricecancel anytime

What you actually get

Not a dashboard. Not another SaaS. A brain that runs on your machine and fixes things for you.

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KostAI, included free

The free scanner that finds the 50% of Claude, Cursor, and Codex spend you didn't know you were wasting. Always free, no paywall.

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Always-on brain

Watches your AI stack 24/7. When waste appears, it auto-files a fix. One-line "health score" tells you if things are good or bleeding.

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AI fleet that costs us thousands

We run dozens of AIs around the clock tuning routing, caching, and prompts. Every customer benefits from every improvement. You get this for $5.

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Weekly plain-English report

No dashboards. No charts. Just: "Here's what we fixed, here's what it saved, here's what you should know." A human could read it in 30 seconds.

Everything. Five dollars a month.

Running a fleet of AIs costs us thousands every month. Charging $5 × lots of teams pays for the fleet. You get thousands in savings and productivity for the price of a coffee.

Everything included · $5/mo

$5/ month

Doubles your productivity. Pays for itself 10× over. Cancel anytime.

✓Free KostAI forever. Cost scanner included even if you never pay us a dime.
✓Always-on brain. Runs on your machine, watches your stack, auto-files fixes.
✓Continual AI-fleet upgrades. Our fleet (costing us thousands) makes your stack faster and cheaper every week.
✓Priority human help. Email and a real person replies same day.

Start $5/mo →

Zero-risk promise: if BrainOfBrains doesn't save you at least 10× the $5 price in your first month, we refund the $5 and send you a detailed report anyway. We keep receipts.

Still here? Paste the line.

Free. 30 seconds. Nothing leaves your machine.

Take me back to the paste box ↑

Questions people ask

If you're not sure, click any of these.

Is my code leaving my machine?

No. BrainOfBrains runs entirely on your laptop. It watches your AI calls locally and keeps a small local database. We never upload your code or your prompts. The install script is readable — you can check it before running.

What is Claude Cowork? What do I paste the line into?

Cowork is Anthropic's workspace where you chat with Claude. The one-liner also works in Claude Code, Cursor, Windsurf, or any coding assistant that can run shell commands. Paste the line, press enter, your assistant handles the rest.

What actually happens when I pay $5?

Three things. (1) The always-on brain turns on — watches your stack 24/7 and auto-files fixes. (2) Our AI fleet (dozens of agents costing us thousands per month) starts optimizing your setup continuously. (3) You get priority email support. If it doesn't save you $50+ in month one, we refund everything.

Why is it only $5? What's the catch?

No catch. The fleet costs us thousands whether one team pays or a thousand teams pay — so the marginal cost of helping you is near zero. We'd rather have lots of happy $5 customers than a handful of expensive-feeling ones. If the business math breaks, the price may go up for new customers — yours stays locked.

What's the difference between BrainOfBrains and KostAI?

KostAI is the free cost scanner — it finds the 50% you're wasting and prints one report. BrainOfBrains ($5/mo) includes KostAI and adds the always-on brain that watches your stack continuously and pushes improvements. KostAI is a snapshot. BrainOfBrains is a live-in mechanic. See KostAI →

Does this work on Codex, Cursor, and Gemini too — not just Claude?