Developer documentation
Help developers use your product
Connect guides and API references so developers can ask about setup, configuration, and troubleshooting, then open the relevant documentation.
Embedded AI chat widget
Let readers ask your documentation a question
Add the widget with a script tag so readers can ask questions and receive source-linked answers from your published documentation.
14-day free trialNo credit card required
Biel.ai assistant
Powered by biel.ai
Assistant
Hi! How can I help you?
What is Biel?
Assistant
Biel.ai turns your product docs into an AI assistant. Add an assistant to your website, give AI agents context from your docs, or build custom experiences with our API.
How to try Biel?
Assistant
Sign up and try Biel free for 14 days. Set it up yourself, connect your docs, and add the assistant to your site. Or request a demo and we’ll walk you through it.
Used by documentation and developer-experience teams
What it does
An AI assistant built for technical documentation
Ask AI retrieves from your indexed documentation and provides source links, helping answers track what you have published. Generative output can still contain errors, so readers can verify important details against those sources.
i.
Source links for verification
Answers include links to the documentation used, so readers can verify important details or continue reading.
ii.
Handles unsupported questions
When the available documentation is insufficient, Biel can say so and direct the reader to your support channel. Model errors remain possible.
iii.
Built for technical content
Biel indexes code blocks, configuration examples, error messages, and API references alongside the surrounding explanation.
iv.
Answer in the reader's language
Readers can ask in their preferred language, even when the documentation is in English. Answers include links to the supporting content.
v.
Customizable down to the button
Your colors, your fonts, your tone of voice. Configure how the assistant introduces itself, what it can and can't say, and which pages it should prioritize.
vi.
Refreshes with your docs
Refresh the index on a schedule, after a deployment, or through a webhook so answers track your published documentation.
Implementation
Add the widget to your docs site
Sign up, connect your documentation, test a few questions, then add the widget using your platform’s installation guide.
Compatible with Docusaurus, Sphinx, MkDocs, Hugo, Jekyll, Next.js, and 20+ more.
<!-- 1. Load Biel -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/
biel-search/dist/biel-search/biel-search.css">
<script type="module" src="https://cdn.jsdelivr.net/npm/
biel-search/dist/biel-search/biel-search.esm.js"></script>
<!-- 2. Drop the button -->
<biel-button project="YOUR_PROJECT_ID"
button-style="dark">
Ask AI
</biel-button>Use cases
Four places teams put Ask AI
Use the website widget for readers and the native Slack or Discord app for questions in team chat. Both retrieve from the same project sources.
Help center
For self-serve customer support
Let users ask in plain language, receive a source-linked answer, or follow a contact path you configure when the documentation does not cover the question.
Slack & Discord native apps
Where your team already talks
Connect a supported chat app so your team or community can ask documentation questions where the discussion is already happening.
Internal knowledge base
For onboarding and team lookup
Connect approved Confluence spaces, repositories, or uploaded files. Give employees a place to look up documented procedures and onboarding information.
“Easy to set up, yet the positive effects are felt immediately.”
Marko Stanik · Product Success at Turnkey
Questions about AI chat
How long does installation take?
Indexing time depends on the size of your site. For documentation with about 200 pages, connecting the source and adding the widget typically takes around 15 minutes.
What happens when Biel doesn't know the answer?
Biel can say when it does not have enough evidence. You can configure a contact form, support email, or another next step for the project.
Can I control what the assistant says about my product?
Yes. Set the assistant's tone and scope with a custom prompt, boost preferred sources, and exclude pages you do not want indexed.
How can I customize the widget?
Customize its colors, position, labels, button style, and light or dark theme. White-labeling is available on higher plans.
Can data stay in the EU?
Yes. EU data residency is available on Enterprise plans. See the Security Overview.
Does it work with private docs behind a login?
Yes, on every plan. See how to connect private sources.
Add Ask AI to your documentation
14-day free trial · No credit card required