Introducing @mnexium/chat

A single npm package that adds a polished, production-ready AI chat widget to any website. React, Next.js, Express, or plain HTML — it just works, and most importantly, it remembers.

Marius Ndini
Founder · Jan 19, 2026

The Problem

Adding AI chat to a product usually means:

  • Designing and building a custom UI
  • Handling streaming responses
  • Managing conversation state
  • Securing API keys
  • ...and it still won't remember anything about your users

That's a lot of engineering just to let users ask questions.

The Solution

One package. Three ways to use it:

npm install @mnexium/chat

⚛️ React / Next.js

import { MnexiumChat } from '@mnexium/chat';

export default function App() {
  return (
    <>  
      <YourApp />  
      <MnexiumChat endpoint="/api/mnx" />  
    </>
  );
}

A floating chat button appears. Click. Chat. Done.

🌐 Plain HTML / Express

<script
  src="/mnexium-chat.js"
  data-endpoint="/api/mnx"
  data-theme="dark"
></script>

Same UI. No React. No build step.

🧩 Headless (Bring Your Own UI)

import { MnexiumClient } from '@mnexium/chat/core';

const chat = new MnexiumClient({ endpoint: '/api/mnx' });
chat.onMessage((messages) => renderYourOwnUI(messages));
await chat.send('Hello!');

We handle streaming + state. You control the interface.

What You Get

  • Floating widget with modern glass design
  • Real-time streaming responses
  • Markdown rendering out of the box
  • Dark/light themes
  • custom colors + logo
  • Multi-provider support — OpenAI, Anthropic, Gemini
  • Persistent memory across sessions

Why Mnexium?

The widget is powered by Mnexium, which gives your AI:

  • 🧠Memory across conversations — Your AI remembers users across sessions, not just within a single chat.
  • 📚Automatic learning from users — Facts, preferences, and context are extracted and stored automatically.
  • 🎯Personalization over time — The more users interact, the smarter and more personalized responses become.

You get a smarter assistant without building memory infrastructure.

Try It Now

Visit mnexium.com or mnexium.com/docs and click the chat button in the bottom right corner. That's @mnexium/chat in action.

@mnexium/chat v2.0.0 is live on npm

One package. Any framework. Instant AI chat.

View on npm → Read the docs