AI chatbotsthat liveon yourwebsites
Self-hosted AI assistants embedded anywhere. Trained on your docs, your site, your knowledge — running on infrastructure you control. No cloud lock-in, no per-token surprise bills, no data leaving your hardware.
Self-hosted by teams who don't trust the cloud
The whole stack — yours
Everything that makes a great chatbot. Nothing that calls home.
Runs on your hardware. Period.
One Docker compose, one systemd unit. Postgres + Redis + Ollama, all local. No Neon, no Pinecone, no Clerk, no OpenAI dependency. Your customer's conversations never leave your network.
Real RAG
pgvector + nomic-embed. Top-k retrieval with HNSW. Not prompt-stuffing.
Crawl any site
Playwright BFS. Vision OCR for product pages. Sync on a schedule.
Embed anywhere
Shadow DOM widget. One script tag. Zero dependencies. Theme-aware.
Brand-perfect
Match your colors, logo, position, voice. Light & dark themes.
Private by default
Domain allowlist. Per-IP rate limits. Encrypted BYOK keys.
Streaming SSE
Token-by-token responses. Multi-turn sessions. Conversation history.
19 local models
Qwen 3, GPT-OSS, DeepSeek R1, Phi-4. Or BYOK Anthropic / OpenAI.
Three steps. No bullshit.
From zero to embedded in five minutes.
Create a bot
Pick a name, system prompt, and a model. Defaults to qwen3:14b on your local Ollama. Takes 30 seconds.
curl -X POST /api/bots \
-d '{"name":"Acme Support"}'Feed it your knowledge
Upload PDFs, DOCX, spreadsheets. Or point it at your website — we crawl it with Playwright. Vector embeddings happen on your GPU.
bot.docs.add("./manual.pdf")
bot.crawl("https://your.site")
> 847 chunks indexed in 12sEmbed anywhere
Drop one script tag. Shadow DOM keeps your CSS clean. Theme matches your brand. Streaming responses out of the box.
<script src="lumen.app/api/embed/abc.js" defer ></script>
Try it now
This is a real Lumen widget.
Trained on this very landing page. Ask it anything about the product.
This demo runs in-browser. The real Lumen pipes streaming responses from local Ollama via SSE.
Pricing that respects you
Self-host for free.
Pay us only if you don't want to.
Self-hosted
Run Lumen on your own hardware. Open source. Yours.
Clone the repo- Unlimited bots, messages, docs
- Unlimited rate limits
- All 19 local Ollama models
- pgvector RAG, crawler, embed widget
- Community support
Pro
Skip the ops. We host it on the same hardware, you get a domain.
Start 14-day trial- 5 bots, 10,000 msgs/mo
- 500 docs, 5GB storage
- Custom domain + SSL
- Conversation analytics
- Email support
Team
For growing teams. Higher limits, multi-seat, audit logs.
Start 14-day trial- 25 bots, 100,000 msgs/mo
- 5,000 docs, 50GB storage
- Multi-user workspaces
- Audit logs + export
- Priority support + Slack
Questions