How to Install Check in 30 Seconds

Published 22 June 2026

One command. Check auto-detects your IDE, configures the hooks, and starts validating every command before execution and every file after the AI writes it.

Step 1: Get your API key

Sign up at golproductions.com/check. You get 120 free checks immediately. No credit card required.

Step 2: Install

Open any terminal and run:

npx @golproductions/check --install your_key

Replace your_key with the API key you got in step 1.

That's it. Check auto-detects which IDEs you have installed and configures itself for each one.

Step 3: Restart your IDE

Restart your IDE to activate the hooks. Check is now running. Every command your AI generates is validated before execution. Every file your AI writes is verified against your project.

What just happened

The install command did the following:

  1. Downloaded Check to ~/.check/
  2. Detected your installed IDEs (Claude Code, Cursor, Antigravity)
  3. Configured hooks for each IDE
  4. Set your API key

Check now runs automatically. You don't need to invoke it. Your AI doesn't know it's there. It just works.

Verify it's working

After restarting your IDE, ask your AI to run any shell command. Check will validate it before execution. If the command is valid, it runs normally. If it's invalid, you'll see a message explaining why it was blocked.

# AI tries to curl a dead endpoint $ check curl https://api.nonexistent-service.xyz/v1/data Result: invalid — target is unreachable # AI tries a valid command $ check curl https://api.github.com Result: runnable

Supported IDEs

Check auto-detects and configures:

  1. Claude Code — full support (pre-execution + post-write verification)
  2. Cursor — command validation before execution
  3. Antigravity — command validation before execution

More IDEs coming: Windsurf, Cline, Continue, Zed, Aider, JetBrains.

Pricing

120 free checks on signup. After that, $0.0068 AUD per check. Prepaid wallet — no subscription, no monthly fee. Credits never expire. Failed requests are never charged.

Start now. 120 free checks.

$0.0068 AUD per check after the free tier. No subscription.

Get your API key

Frequently asked questions

How do I install Check?

Run npx @golproductions/check --install your_key in any terminal. Replace your_key with the API key from golproductions.com/check. Check auto-detects your IDE and configures itself.

Which IDEs does Check support?

Check auto-detects and configures Claude Code, Cursor, and Antigravity. More IDEs are coming including Windsurf, Cline, Zed, and JetBrains.

How do I get an API key?

Sign up at golproductions.com/check. You get 120 free checks immediately. No credit card required.

How do I uninstall Check?

Run npx @golproductions/check --uninstall. It removes the hooks and key from all configured IDEs.