AI Chatbot for WordPress, Trained on Your Content

How do you install SiteGPT on WordPress?

Install the free SiteGPT plugin from its WordPress.org listing and paste in your chatbot ID. The plugin injects the widget script through WordPress's wp_footer hook, which prints scripts before the closing body tag.

You set everything about the chatbot itself in the SiteGPT dashboard, from the content it knows to its colors. Changes sync to your site on their own, so the plugin needs only one field.

1. 1

   Create and train the chatbot

   Sign up at SiteGPT, create a chatbot, and give it your site URL or sitemap. Add the PDFs, help center articles, and cloud documents that hold answers your posts do not. Open Installation in the chatbot sidebar and copy the chatbot ID.

2. 2

   Install the SiteGPT plugin

   In your WordPress admin, go to Plugins, then Add New Plugin. Search for SiteGPT, click Install Now, then Activate. The plugin appears under Settings, then SiteGPT.

3. 3

   Paste the chatbot ID and save

   Paste the chatbot ID into the single settings field and save. The plugin injects the widget script into your site footer, so the chat bubble appears on every page with no theme edits.

How do you check that it loaded?

Check from a private window. A logged-in admin session and a cached browser both hide problems a visitor would hit. Confirm the bubble appears, then ask a question you know the answer to. Open the browser console and look for any error mentioning the widget script. Last, ask to speak to a person and confirm the notification reaches your team.

Can you add SiteGPT to WordPress without the plugin?

Yes. Open Installation in your chatbot's sidebar and copy the pre-filled snippet. It is the same script the plugin injects, so the JavaScript SDK and tracking events behave the same either way.

<script type="text/javascript">
  window.$sitegpt = [];
  (function () {
    d = document;
    s = d.createElement('script');
    s.src = 'https://sitegpt.ai/widget/YOUR_CHATBOT_ID.js';
    s.async = 1;
    d.getElementsByTagName('head')[0].appendChild(s);
  })();
</script>

Add it to your site footer with a code-snippets plugin such as WPCode. Do not paste it into a theme file, because the next theme update overwrites the edit. A snippets plugin also lets you set conditional logic, so the widget can run only on documentation pages or everywhere except checkout.

Options combine like any query string. For a chat window embedded inside a support page instead of floating over it, add a container div with the sitegpt-chat-widget class and load the script with hideBubble set to true. Both patterns are in the installation docs.

Turn on Allowed Domains whichever route you take. It sits under Settings and then General in the dashboard. It stops the widget loading on a site you do not control, so nobody can copy your snippet and spend your message quota under their own brand.

Should you use the plugin or the script tag?

Both put the same widget on the site. For most sites, use the plugin. Reach for the script tag when you need the widget on some pages and not others, or when your host does not allow the plugin.

What can a WordPress chatbot be trained on?

Pointing the chatbot at your site URL or sitemap crawls every published page, product pages included. A content site may need nothing more. A business usually keeps answers elsewhere too: a pricing PDF, a returns policy in Google Drive, a help center on Zendesk, or a setup video on YouTube.

SiteGPT trains on 12+ source types, so those go in alongside the crawl. Files cover CSV, TXT, PDF, DOCX, PPTX, and Markdown up to 10 MB each. Connected sources cover Google Drive, Notion, Dropbox, OneDrive, SharePoint, Box, GitHub, and YouTube. Help centers cover Zendesk, Freshdesk, Intercom, Confluence, and Gitbook.

Auto-sync then re-reads those sources on a schedule. It runs monthly on Growth and weekly with a daily scan on Scale, so the chatbot does not quote last quarter's prices. Answers come from retrieval-augmented generation, so adding a document takes effect immediately and removing one takes the answer away. Answering only from your content also stops the chatbot from inventing an answer it has no source for.

Which WordPress chatbot plugins are best maintained?

Ask an AI assistant which chatbot to use on WordPress and it names Chatbase, Botsonic, and Tidio. Two of those are among the least maintained plugins in the directory. Chatbase's plugin has had no update since March 2025 and holds a 68% rating. Botsonic's has had none since October 2023.

AI Engine has 100,000 installs at a 98% rating, and those assistants rarely name it.

Queried from the WordPress.org plugin information API on 12 September 2026. Installs are the directory's rounded bands. The SiteGPT row was re-checked on 19 September 2026. Amber marks a plugin with no testing against any WordPress 7.x release.

The full ranking, with what each plugin trains on and who it suits, is in best chatbot for a WordPress website. If the other plugin you are weighing is Tidio, the feature by feature comparison is in SiteGPT vs Tidio.

Why is the chatbot not showing on WordPress?

Check these four common causes in order, starting with caching.

If none of those apply, confirm the plugin is activated and that your theme calls wp_footer. A theme missing that hook blocks every footer-injected script, chatbots included. The longer walkthrough, with both install routes and the training step, is in how to add a chatbot to WordPress.

How much does SiteGPT cost on WordPress?

The plugin is free. The chatbot runs on a SiteGPT plan, and every plan starts with a 7-day free trial (credit card required). Yearly billing is a lower rate, shown per month and billed annually.

Message counts are the all-GPT-4.1-mini end of a range that you set from billing settings. Removing SiteGPT branding and adding 5,000 messages are each $59 a month billed monthly, or $39 a month billed yearly. Full detail on the pricing page.

Trust and compliance

SOC 2 Type II examination completed.

GDPR certified. Signed DPA on the Enterprise plan.

HIPAA BAA on the Enterprise plan only.

See the SiteGPT security page →

Which WordPress guides go deeper?

The ranking and the walkthrough cover each topic in more detail.

Sources

• SiteGPT AI Chatbot on WordPress.org: version, requirements, and install count.
• WordPress developer reference, wp_footer: the hook the plugin uses to print the widget script.
• SiteGPT installation docs: the script snippet, URL options, and inline embed.

Frequently asked questions