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Cactus

Reads your code, writes and rewrites help pages from it, and answers customer questions from those same pages.

From $35/moActively maintained

Developer toolsChat assistantFor developersWriting
heycactus.ai ↗GitHubLinkedIn
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Cactus: data, price, alternatives
At a glancechecked Oct 28, 2026

not read yet

Use

Price
From $35/mopricing page, read Oct 27, 2026Trial & discounts: 14-day free trial
Activity
Actively maintainedrelease 13 days ago · site updated 5 days ago
Used for
  • answer customer questions from the product's current code
  • keep help pages and changelog matched to each release
  • hand unanswered customer messages to your team in Slack
read off heycactus.ai on Oct 27, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 27, 2026

From $35/mo

Trial & discounts 14-day free trial

pricing page

Price Watch: every price change in the Atlas, weekly

The companyeach fact with its source · read Oct 27, 2026
Your datawhat they publish, each line with its page · read Oct 27, 2026

“Cactus does not train models on your code.”

security page ↗

These are Cactus's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 27, 2026
  • MCP serverai.heycactus/cactusverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-27
  • Address to connectmcp.heycactus.ai/mcp
  • OpenAPI spec23 pathsthe spec ↗
  • MCP docsheycactus.ai/mcpthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Cactus?

    Reads your code, writes and rewrites help pages from it, and answers customer questions from those same pages. It is listed in the Atlas under Developer tools.

  • How much does Cactus cost?

    Paid plans start at $35/mo, per Cactus's pricing page on 2026-10-27.

  • Is Cactus free?

    No. Its pricing page showed no free plan on 2026-10-27.

  • Do people use Cactus?

    Little sign of use.

  • Is Cactus still maintained?

    Actively maintained: release 13 days ago · site updated 5 days ago.

  • Does Cactus train AI on your data?

    No, per its security page (2026-10-27): “Cactus does not train models on your code.”

  • Is Cactus safe?

    We do not audit vendors. What Cactus publishes, read 2026-10-27: SOC 2 Type II stated on its security page; on training with your data, “Cactus does not train models on your code.”.

  • Does Cactus have a free trial?

    Yes, a 14-day free trial, per its pricing page (2026-10-27).

  • How do I cancel Cactus?

    In its own words (terms of service, 2026-10-27): “Cancel your plan in Settings → Plan, disconnect your sources in Settings, delete your products, and write to [email protected] to close your account.”

  • What are alternatives to Cactus?

    In Developer tools, by use: TinyFish, Documentation.AI, Chaterimo, Linka, Mabl.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk