Fer Markdown for AI
Free WordPress plugin that publishes owner-verified business facts and Markdown page copies at structured URLs for AI assistants to read.
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Best for small service businesses that want AI assistants to read accurate, owner-controlled facts without paying for a managed service. It does less than broader AI-visibility plugins like 42A (no MCP server, no crawler audit, no traffic analytics), so technically ambitious site owners will hit its ceiling fast. Skip it if you need AI visibility reporting, traffic insights, or anything beyond a static fact sheet and Markdown page mirrors.
What is Fer Markdown for AI?
Free WordPress plugin. Publish owner-verified business facts, services, prices, hours and policies at /business.md, with Markdown copies of public pages, so AI assistants and LLMs can read your business accurately.
How we scored Fer Markdown for AI
Capability lands at 16 because the plugin does its narrow job well but lacks features that free competitors already ship: no MCP server, no crawler traffic logging, no GEO vitals, and no analytics of any kind. The 300-character business summary cap is a real constraint for multi-service businesses. Ease of use scores 21 because the plugin requires no account, no API key, and no configuration beyond entering business facts in a settings screen; the block editor checkbox for per-post exclusion is a clean touch. Value scores 23 because the plugin is genuinely free at $0.00 with no paid tier and no external service dependency, which is hard to beat for what it delivers. Delivery scores 6 because no user reviews, install counts, or sentiment data could be confirmed from search results, making it impossible to verify that the plugin actually performs as described in production; a tool with zero surfaced social presence, no confirmed install base, and no independent reviews cannot score higher here regardless of how well-written its feature list is.
Pros and cons
What we liked
- Completely free with no paid tiers, accounts, or external service dependencies, making it genuinely zero-cost to run indefinitely.
- The /business.md fact sheet is owner-controlled and structured, covering services with price ranges, currency codes, units, hours, and policies in a single crawlable endpoint that pure Markdown-mirror plugins do not provide.
- Built-in 180-day review reminder with a 30-day dismissal window actively prompts owners to keep prices and policies current, a detail most competing plugins omit.
Where it falls short
- No crawler traffic analytics or AI visit logging whatsoever: you cannot tell whether ChatGPT, Claude, or Perplexity has ever fetched your /business.md, which makes it impossible to measure whether the plugin is doing anything useful.
- The business fact sheet summary is capped at 300 characters, which is tight for businesses with complex offerings or multi-location operations.
- No MCP server exposure and no GEO vitals reporting, features that free competitors such as 42A already include, meaning technically ambitious users will need a second plugin to cover those gaps.
Key features
Fer Markdown for AI pricing
Completely free. The plugin is listed on WordPress.org at $0.00 with no paid tiers, no premium add-ons, and no account required.
| Plan | Price | Who it is for |
|---|---|---|
| Free | $0.00 | All features: business fact sheet at /business.md, Markdown page mirrors at.md URLs, HTTP content negotiation, optional /llms.txt index, SEO plugin integration, 180-day review reminder, and full local generation with no accounts or external services required. No paid tier exists. |
Pricing reflects what we saw at time of review (2026-10). Always confirm current pricing on the tool's own site.
Who should use Fer Markdown for AI?
This plugin suits a solo plumber, a freelance translator, or a small law firm that wants AI assistants to quote the right prices and service area without relying on whatever a crawler happens to scrape from a homepage layout. The business fact sheet is the core value: you enter your services with price ranges, a three-letter currency code, and a unit, and the plugin publishes that at /business.md in a format AI assistants can parse cleanly. The 180-day review reminder is a practical touch for owners who update their rates once a year and then forget.
If you run a content-heavy site and want to know which AI crawlers are visiting, how often, and whether your pages are being cited, look elsewhere. Corank (in this directory) offers managed AI search optimization with citation tracking across AI answer engines, which is a fundamentally different and more active approach. VisRank (also in this directory) provides an audit of AI search readiness in about 30 seconds, useful if you want a diagnostic before committing to any plugin.
Skip it if: Sites needing AI traffic analytics, crawler audits, or MCP server exposure
Frequently asked questions
Is there any cost to use Fer Markdown for AI?+
No. The plugin is listed on WordPress.org at $0.00 with no paid tiers, no premium add-ons, and no subscription. There is no account to create and no external service to pay for.
Will the /business.md page hurt my SEO by creating duplicate content?+
The plugin adds an X-Robots-Tag: noindex header to Markdown responses and sets a Canonical Link, so search engines are instructed not to index the.md URLs. It also respects per-post noindex settings from Yoast SEO, Rank Math, and All in One SEO.
What happens if I already have an llms.txt file or my SEO plugin generates one?+
The plugin automatically detects an existing llms.txt in the WordPress home directory or an active llms.txt generator in Yoast SEO, Rank Math, or All in One SEO, and yields its own index rather than overwriting. Your business fact sheet and Markdown pages remain available regardless.
Can I control which posts appear in the Markdown output?+
Yes. A checkbox in the block editor sidebar lets you exclude any individual post from Markdown delivery and from the llms.txt index. Drafts, private content, password-protected posts, and non-viewable post types are never served regardless of that setting.
Does the plugin tell me which AI crawlers are visiting my /business.md?+
No. Fer Markdown for AI has no traffic logging, analytics, or crawler identification features. You would need a separate plugin or server-level log analysis to see whether AI agents are fetching your endpoints.
What is the 300-character limit on the business summary?+
The business name field is accompanied by a summary field capped at 300 characters. This is the short description of your business published in the fact sheet. Detailed service descriptions, prices, and policies are entered separately in repeatable service rows and policy fields.
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