AI support that cites its sources

AI-powered help for modern SaaS.

Lexi answers your customers' questions from your own docs — instantly, accurately, with citations. One script tag, and your support load drops.

Free plan: 1 site · 10 documents · 25 conversations/month.

Support that actually knows your product

Not a generic chatbot. Lexi is grounded in your knowledge base and honest when it doesn't know.

Paste markdown or upload files. Lexi chunks, embeds, and keeps the index fresh every time you edit.

Every answer names the docs it came from, so customers (and you) can trust what Lexi says.

When the docs don't cover it, Lexi says so, offers your support email, and collects the visitor's email for follow-up.

Accent color, greeting, and suggested questions — configured per site, no CSS required.

See conversations per day, message volume, and how many chats never needed a human.

Your knowledge base is isolated per account with row-level security. Widget keys are public; your data isn't.

Create a site, then paste or upload your help articles, FAQs, and guides. Lexi indexes them in seconds.

One script tag on your site. That's the whole integration.

<script
  src="https://lexi.cx/widget.js"
  data-site-key="lx_…"
  async
></script>

Lexi answers instantly, 24/7. You review transcripts, follow up where needed, and track deflection in the dashboard.

Start free. Upgrade when your customers start leaning on Lexi.

Kick the tires on one site.

$0/mo

For teams running help across many products.

$99/mo

Set up takes about ten minutes — most of it copy-pasting your docs.