Markup AI
AI content guardrails and brand agent platform — review and approve AI-generated content before it goes live
| What is it | AI content guardrails and brand agent platform — review and approve AI-generated content before it goes live |
|---|---|
| Pricing | Paid — from $249/mo |
| Free tier | No |
| Platform | API |
| API | Yes |
| Works with | n8n |
| Best for | moderating user-generated content on social platforms, preventing prompt injection and toxic outputs from LLMs |
| Domain registered | 2017 |
Data updated Sept. 19, 2026
What does Markup AI do?
Markup AI is a content governance platform that helps teams review, approve, and enforce brand guidelines on AI-generated text. It acts as a set of guardrails between your content creators and the public, catching tone, style, and factual issues before anything gets published. The tool is designed for marketing teams, technical writers, and anyone who needs to maintain a consistent brand voice across large volumes of AI-produced copy.
The platform works by letting you define custom brand rules — things like preferred terminology, banned phrases, tone preferences, and formatting standards. When a writer or AI tool produces content, Markup AI scans it against those rules and flags any violations. You can then approve, reject, or edit the flagged sections. It also offers a Chrome extension so writers can check content directly in their browser. The system is built around "brand agents" — automated reviewers that apply your specific guidelines without needing a human to read every line.
This tool is most useful for marketing departments that use AI writing assistants (like ChatGPT or Jasper) and need a safety net to catch off-brand language. It also works well for technical documentation teams who need to ensure consistency across hundreds of pages. If you're a solo creator or a small team, the free tier lets you test the guardrails on a limited number of checks before committing to a paid plan.
Key features
What makes it stand outWho is Markup AI for?
Who benefits most from this toolPricing
Starter
- Unlimited users — one flat price
- 12 million words checked a year
- Centralized administration
- The full content engine — checks, scores, and rewrites
- New capabilities as they release
- Community support
Trust & presence
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