Get started · Installation
Install the SDK
Stack is a single-binary CLI. Install it via your package manager of choice:
$ npm i -g @stack/cli
Verify the install
You should see your version number echoed:
$ stack --version
stack v3.4.1
stack v3.4.1
Drop a 6 KB widget on your site — fully hosted, nothing to run. A full REST API and webhooks let your own AI read every conversation and reply. Bring your own model key, or use ours.
[THE INBOX]
Run your shop, your SaaS and your docs from a single workspace. Switch project in one click — each keeps its own widget, team and tone. Unlimited agents on all of them.
Maya Okonkwo
nowlumiere.shop · 🇨🇦 CA
Hi! Is the night serum refillable once I run out?
Tom Bélanger
2mlumiere.shop · 🇫🇷 FR
My order says delivered but nothing arrived…
Anya Sharma
14mlumiere.shop · 🇬🇧 GB
Thanks — that fixed it. You rock!
Anonymous visitor
31mlumiere.shop
do you ship to Norway?
lumiere.shop · /products/night-serum
slash — /close/snooze/assign
[INTEGRATIONS]
Same widget, three personalities. Tint each install to match the host site. No iframe, no awkward popup — it lives inside a Shadow DOM and respects your CSP.
New Drop · 14 May
Hydra Serum
€38
Velvet Cream
€44
Aurora Mask
€32
Léa · Lumière
Online · replies in ~2 min
Powered by muro.chat
▸ TINT — brand purple #4323ec
E-commerce · order help, sizing.
1,284
builds
99.4%
success
47s
p50
Sam · Forge
Online · replies in ~2 min
Powered by muro.chat
▸ TINT — custom teal #0d9488
SaaS · in-app technical support.
Get started · Installation
Stack is a single-binary CLI. Install it via your package manager of choice:
You should see your version number echoed:
Kenji · Stack
Online · replies in ~2 min
Powered by muro.chat
▸ TINT — forest green #3a7d44
Docs · live developer help.
[INSTALL]
Drop the snippet in your <head>. The widget loads async from muro.chat, isolated in a Shadow DOM. Watch it go live ↓
muro@web ~/site $ install
waiting…[WHY MURO]
[01] FLAT
Solo and Fleet. The price moves with projects you ship, never headcount.
unlimited
agents
unlimited
conversations
0
per-seat fees
[02] LIGHT
0kb
gzipped widget
0
render-blocking requests
Vanilla JS, isolated in a Shadow DOM. Won't blow up your Lighthouse score.
[03] INBOX
Forward every visitor message to your inbox. Reply from there — your reply lands as a chat message. The visitor never sees your address.
[04] YOURS
EU-hosted, signed DPA, public sub-processor list. One-click conversation export and right-to-erasure built in — GDPR Article 20 by default.
[05] HACKABLE
Webhooks for every event. REST API for everything. CSV import/export for your saved replies.
[PLANS]
[FLEET]
Most popularShip 20, 50, 100 projects — one inbox.
$59/mo
Unlimited projects · 3,000 AI credits
Start free trial →Yes — 6 KB gzipped, vanilla JS, no React/Vue runtime. It loads async, so it never blocks your content.
Yes — set your accent color, launcher position, agent name, avatar and welcome message from a per-site config. It auto-detects the visitor’s language across 12 supported, and renders in a style-isolated shadow root so your site CSS can’t break it.
Unanswered visitor messages are emailed to your inbox — instantly or after a delay you choose — with a deep link back to the conversation. Reply-by-email (answer straight from your mail client) is rolling out next.
EU-only hosting, signed DPA available, public sub-processor list. Data export and right-to-erasure tooling is baked into every plan.
[LAST CALL]
14-day trial, no card, no setup call. If it's not for you, just walk away — there's nothing to cancel.