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Signal Zero · Mac

CORTEX on your Mac.
Running in 60 seconds.

Signal Zero brings terminal intelligence, voice commands, review-first execution, and persistent memory to your Mac. One install. No configuration required.

One-line install
curl -fsSL cortexnode.ai/api/install/signal-zero | bash

Requires macOS 12+ · Node.js 18+ · Apple Silicon or Intel · ~45 MB

What gets installed
signal-zero
The CLI — lives at /usr/local/bin/signal-zero
CORTEX brain
Connected to api.cortexnode.ai · your account
Voice layer
Kokoro local TTS · ElevenLabs for Pro+
Memory store
Persistent context at ~/.cortex/memory/
Free vs. Signal Zero CLI
Free
$0
No credit card
✓Local brain (Ollama)
✓33 execution tools
✓Basic memory (local file)
✓Mac agent
✓Terminal REPL
Recommended
Signal Zero CLI
$49/mo
Cancel anytime
✓Everything in Free
✓Cloud brain relay (cortex-advanced)
✓Durable memory (DynamoDB)
✓Premium voice (ElevenLabs)
✓Founder session priority
✓Signal Zero iOS companion
Get Signal Zero CLI →
How it works
01
Run the install command
The script downloads the latest Signal Zero binary, verifies the signature, and places it in /usr/local/bin.
02
Authenticate
Run signal-zero auth — it opens cortexnode.ai in your browser. Sign in with your CORTEX account. Token stored securely in Keychain.
03
Start talking
Run signal-zero or set CORTEX as your default shell companion. Voice-first by default. Text input always available.
Prefer Homebrew?
brew tap cortexnode/tap
brew install signal-zero

Homebrew formula ships May 15 with launch. Coming soon.

Windows · Linux

Signal Zero CLI runs on any platform with Node.js 18+. Same brain, same memory, same tools.

Install via npm
npm install -g signal-zero
Then run
signal-zero
Requirements
Windows:Windows 10+ · PowerShell or CMD · Node.js 18+
Linux:Ubuntu 20.04+ / Debian / Fedora · Node.js 18+
Install Node:nodejs.org — download the LTS installer
Account:Free tier included · $49/mo for full CLI access
CORTEX Web App

Prefer a browser experience? Install CORTEX as a Progressive Web App — works offline, no install required.

Install as Web App →
System requirements
OSmacOS 12 Monterey or later (macOS 14 recommended)
Node.jsNode.js 18 or later (Node.js 20 recommended)
ChipApple Silicon (M1+) recommended · Intel supported
NetworkInternet connection for cloud brain · offline mode available
AccountCORTEX account required · free tier available

Questions? Need help?

hello@cortexnode.ai