rootpublish.日本語 ↗AI facts check

About Rootpublish

Who runs Rootpublish, what it offers and what it costs

What is Rootpublish?

A service run by Nandarona Inc. It offers the AI facts check, which compares what AI assistants tell buyers about a company with the company's own pricing and service pages; a consistency report that lists articles contradicting the pricing page; monthly AI answer care; and a WordPress plugin that drafts articles from a company's own knowledge.

Who runs it?

Nandarona Inc. (株式会社なんだろな), a company in Japan. Contact: support@rootpublish.com.

What does it offer, and at what price?

The AI facts check is free. The consistency report is a one-off JPY 50,000 before tax per domain, for Japanese-language sites. Monthly AI answer care is USD 200 per month for English-language companies (JPY 30,000 before tax in Japan). The WordPress plugin is a free beta.

Is there a setup fee or a minimum term?

There is no setup fee. AI answer care has no minimum term and can be cancelled any month. The consistency report is a one-off with nothing to renew.

How do I pay?

By invoice: on delivery for the consistency report, and monthly for AI answer care.

Can I try it for free?

Yes. Ask for a free AI facts check by email, or, if you use Claude Code, install the MIT-licensed plugin and run the check on your own Claude with no API key.

Which AI assistant do you check with?

Claude with web search. From ChatGPT and other assistants, you can try it by adding the MCP server https://rootpublish.com/mcp (trial). Answers change from one question to the next and differ between assistants.

Will fixing my pages change what AI assistants say?

We do not guarantee it. We help you state prices, terms and scope plainly on your own pages, then ask the same questions again after a while to see what changed.

Who is it for?

B2B companies that publish their pricing and write about their own plans in blogs or articles. The AI facts check and care cover Japanese and English sites; the consistency report covers Japanese sites.

Last updated: October 5, 2026