# Cactus: AI help center and support agent from your code

Cactus learns a product from its codebase, answers its customers live, and keeps its help site and changelog current with every release.

## Built for teams that ship faster than they can document.

Cactus learns your product from the code and explains it to anyone who asks.

## Every release makes yesterday's answers a little more wrong. Cactus rewrites them while you build.

Under the line, the help page "Signing in" on Acme Docs, with 3 releases landing beside it that each make one of its facts wrong, then Cactus rewriting each one in place.

## Docs that keep up with your code.

Every page of your help site is written from your code. Ship a change and the pages it touched are rewritten the same day, with a What's New entry to match. Anything your team edits by hand stays edited.

Beside it, the app with the help page "Resetting your password" open, written from Acme's code.

## Live support that knows your product.

A customer asks in your product or on your help site and gets an answer right away, grounded in what your code actually does, with the help page to back it up. Ask for a person and your team takes over.

Beside it, the Inbox with five threads, four answered by Cactus and one waiting on the team: Maya Osei in the Messenger, answered from the help page "Resetting your password", asking for a person, handed to the team in Slack, and a teammate's reply from Slack.

## And your docs are agent ready.

Customers ask AI assistants about your product too. Your help site answers them as well as it answers people.

- Any AI assistant reads it the way a person does.
- Every answer is current as of your last release.
- Nothing to set up. Every help site ships ready.

Beside it, a customer asks Claude, ChatGPT, Cursor, Claude Code, WebMCP or any other client "How long does a password reset link last in Acme, and how do I get a new one?" and gets the same answer, from the help page "Resetting your password" on docs.acme.com.

[How an AI client reads your help site](/mcp)

## Your automated changelog: What's New

Each release, written from its commits as it ships. [View all](/whats-new)

## Ask Cactus about Cactus.

### What do I have to write?

Nothing. Cactus writes the help site from the code. Anything you'd rather say yourself, edit, and it stays.

### How long does it take to set up?

About five minutes. Connect your code, and Cactus reads it and writes your whole help site while you wait. From then on, ship a change and the pages it touched are rewritten the same day, with a What's New entry to match.

### Can customers trust the answers?

Each answer comes from what the code actually does and names the help page behind it, so a customer can read on. Each page cites the commits it was written from.

### Where can customers ask?

In your product, on your help site, or from Claude, ChatGPT or Cursor. The answer is the same everywhere, with the help page behind it.

## Keep shipping. We'll handle the explaining.

Every team gets 14 days of Pro free. Cancel any time.

[Start free](https://app.heycactus.ai/)