Consistently accurate, dependable in production.
“It consistently delivers accurate results, and we've had no issues depending on it as part of our documentation experience.”
Lars Wilhelmer, PhD · Documentation Engineer
The answer layer for docs-as-code teams
AI for docs that have to be right
Help readers navigate your technical documentation: find the right page when they know what to look for, or get a source-linked answer when they don’t.
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Biel.ai chatbot
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enable dark mode
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To enable dark mode for Biel.ai on your website, follow these steps:
- Modify your website’s main HTML file.
- Add the attribute
data-theme="dark"to the<html>tag.
html
<html data-theme="dark">
<!-- Your existing HTML content -->
</html>This change activates the dark mode styling for Biel.ai…
AI-generated answers may contain errors. Verify official sources before use.
100,000+ technical questions answered, 98.7% rated helpful
What it does
Built for technical documentation
Biel combines answers for readers with a question log for the people who maintain the docs.
i.
Understands technical content
Biel indexes OpenAPI specs, code blocks, configuration examples, and error messages alongside the rest of your documentation.
ii.
Answers the question users ask
A reader may ask “Why am I getting a 401?” even when the relevant page is called “Authentication lifecycle.” Biel finds the connection and links back to the source.
iii.
Turns gaps into a writing backlog
See the questions Biel could not answer, group them by topic, and use the demand to decide what to document next.
Who it’s for
For teams that own the docs experience
Biel is designed for the people responsible for documentation quality and adoption: technical writers, docs engineers, DevRel teams, and support teams.
It is not a lead-generation chatbot or a replacement for a site without substantial documentation.
- iCustomers rely on your docs to adopt and use the product.
- iiSupport answers questions that the docs already cover.
- iiiYour guides, API reference, and knowledge base live in different places.
- ivA wrong technical answer can cost a reader hours.
- vYou want a self-serve product, not a custom RAG project.
Outcomes
Documentation teams, in their own words
Results from teams using Biel in production. Read the customer stories.
Indexed every doc site without trouble.
“Super easy to get started, reads all our sites without trouble, and helps us learn what questions our users ask.”
Tim McMakin · Technical Writer
Low effort. High impact. Felt immediately.
“Biel.ai has been one of those great examples of low effort, high impact tasks. Easy to set up, yet the positive effects are felt immediately.”
Marko Stanik · Product Success
Integrations
Use the same docs across every channel
Connect one documentation index to your site, MCP clients, team chat, or your own application.
On your docs site
Add chat and search to your docs
Install the widget on Docusaurus, MkDocs, Sphinx, or any HTML site, then match it to your brand.
In their AI tools
Make your docs available through MCP
Let developers query your documentation from Claude, Cursor, Copilot, Windsurf, and other MCP clients.
Connects to
Claude CodeCursorCopilotWindsurfCline
In team chat
Answer from docs in team chat
Use the Slack, Discord, or Microsoft Teams app to answer questions from the same indexed documentation.
Native apps
Slack
Discord
Microsoft TeamsIn your own product
Build with the API
Use the REST API and OpenAPI specification to add documentation answers or retrieval to your own product and workflows.
# Ask anything, programmatically curl app.biel.ai/api/v1/chats/ \\ -H "Authorization: Token ..." \\ -d '{"message":"How do I auth?"}'
Frequently asked questions
What makes Biel.ai different from other AI chatbots?
Biel is built for technical documentation. It handles code and API content, links answers to source pages, supports docs-as-code stacks, and reports content gaps. General website chatbots are often a better fit for lead generation.
How long does the free trial last?
14 days with 1 project, 500 indexed pages, and 2,000 monthly interactions. No credit card required.
Is it complicated to set up?
No. Indexing time depends on site size; for about 200 pages, connecting the source, indexing it, and adding the widget typically takes around 15 minutes. Read the setup guide.
Is my data used to train AI models?
No. We do not use your indexed content or user conversations to train AI models. See the Security Overview.
Your docs already have the answers. Make them work.
14-day free trial · No credit card required