For WordPress sites

Ask AI for your WordPress site

Install the official Assistant and Search plugins from WordPress.org. Add source-linked answers and page search without editing your theme or PHP.

Install the Assistant plugin Install the Search plugin

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Biel.ai assistant

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Used by documentation and developer-experience teams

Install

Two WordPress plugins. One Biel project.

Add the assistant, search, or both. Each plugin has a guided setup and uses the same content index.

01 / Assistant plugin

Biel.ai Assistant

Answer questions from your WordPress content

Add a source-linked assistant to your site without editing your theme. The setup wizard finds your sitemap and connects WordPress to your Biel project.

Choose where the Ask AI button appears
Works with block themes, classic themes, and page builders
Keeps working when you change themes

Install Biel.ai Assistant Setup guide

02 / Search plugin

Biel.ai Search

Turn site search into page search + Ask AI

Help visitors find the right page first, then hand the question to Biel when they need an answer. Replace your theme search or place it with a shortcode.

Page results and Ask AI in one search experience
Works with existing block and classic theme search
Add another search trigger with [biel_search]

Install Biel.ai Search Setup guide

Use either plugin or both. They share one Biel project, one content index, and the same analytics.

For AI tools

Use the same content through MCP

Hosted MCP is available from $150/month. Enable it on your Biel project so compatible AI tools can query the indexed WordPress content.

Learn about the hosted MCP server

mcp.jsonHosted endpoint

{
  "mcpServers": {
    "biel-ai": {
      "type": "http",
      "url": "https://mcp.biel.ai/v2/YOUR_PROJECT_SLUG/mcp"
    }
  }
}

Biel.ai vs built-in WordPress search

WordPress's built-in search matches keywords against post titles and content. It is fast, free, and ships with every theme. Biel provides its own page-search widget plus an Ask AI handoff to the assistant.

Dimension	WordPress search	Biel.ai
Query type	WordPress's built-in search matches keywords against post titles and content. Returns posts, ranked by date.	Semantic page results, with Ask AI for natural-language questions and source-linked answers.
Custom post types	Built-in search ignores custom post types unless explicitly opted in. Most themes ship with no fix.	Indexes the rendered HTML, so any post type that has a public URL is included by default.
Source attribution	A list of post excerpts.	Direct answer plus a link to the specific section, including anchors within long posts.
Multi-author content	No author-aware ranking. Search treats every post equally.	Answers use the indexed page content and can link to the original post, where readers can check authorship and context.
Languages	Built-in search is single-language. Multilingual plugins (WPML, Polylang) each have their own search adapters.	Each language indexed as its own source. Plus answers in 60+ languages, including ones your site is not written in.
Analytics	No content-gap signal. Built-in search does not log queries.	Unanswered questions, satisfaction trends, and a Content Gaps view that updates daily.
Install	Built into WordPress.	Install the official Assistant, Search, or both plugins from WordPress.org. Guided setup; no theme edits.
Cost	Free with WordPress.	Self-serve. 14-day free trial, no credit card required.

Before you install

Does it work with our theme?

Yes. The official plugins work with block and classic themes and common page builders. They do not edit theme files, so the integration survives theme switches.

Can it index our posts and pages?

Yes. Biel indexes the public URLs you connect, including posts, pages, and published custom post types. Answers link to supporting pages.

Can it read WooCommerce, BuddyPress, or LMS content?

Biel can index public pages produced by those plugins. It cannot read private course or member content through the public crawler.

What about multilingual sites with WPML or Polylang?

Index the published URLs for each language you want to include. Readers can ask in 60+ languages. Use separate projects if answers must draw only from one language.

Will it slow down our site?

The plugins load the widget asynchronously, after the page can render. As with any plugin, verify performance on your own theme and hosting setup.

How long does the install take?

Install either official plugin and follow its setup wizard. Indexing time depends on the size of the site.

Make your WordPress site answer questions

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Use a different platform? See our integration pages for ReadMe, Document360, Jekyll, Docusaurus, and MkDocs.