FractalAI · Every system is its own Blueprint
Build an app in a conversation with an AI agent. One engine, Nexus, runs it natively on phones, in the browser and on desktop.
Nexus · the engine for AI-built apps
Every system is its own Blueprint. One engine runs them all.
You create a Blueprint in a conversation with an AI agent, including the assistant you already use every day. Give it files, photos and access to your APIs. Nexus takes care of the rest.
Book a demo
or work in your own AI assistant via MCP
fractalai.io/mcp
No sign-up to start. You sign in when you generate an app.
sklep.kora-len · Blueprint v25
Example
BLUEPRINT
sklep.kora-len
v25
SCREENS
DATA
Products
Orders
Customers
RULES
Free delivery over 200 PLN
LOOK
from Nexus:
sign-in
payments
notifications
NEXUS
app engine
the same for every app
Load another Blueprint
Online store
Restaurant
Bookings
Online course
Nexus unchanged
One Blueprint, native on
Android
iOS
Browser
Desktop
How it works
From a conversation to a working app
You talk to an AI agent and give it your materials. The agent turns them into the Blueprint of your system, and Nexus runs it on every device.
You talk and share your data
In FractalAI or in your own AI assistant. Upload files, photos and texts, and connect the APIs of your systems.
AI creates the Blueprint
One complete description of your system: screens, data, rules and look.
Nexus runs it
The engine reads the Blueprint and renders a native app on phones, in the browser and on desktop.
Your data
Give the agent what you already have
You talk to an AI agent as you would to a person, including the assistant you use every day. Describe what you need, upload materials and connect your systems. An API carries the same data as your files, just delivered live.
In your own AI assistant, connected via MCP
A description in your own words, in conversation
Files: PDFs, photos, texts, spreadsheets
APIs of your systems: store, warehouse, calendar, CRM
Data from your APIs keeps the app up to date on its own
Your AI assistant
FractalAI via MCP
Example
We're building a store for Kora & Len. Here are the catalog and photos; products and stock live in our API.
FILES
catalog.pdf
48 pages: products and descriptions
read
product photos
24 photos
read
API CONNECTIONS
Store
products and prices
live
I have 2 files and 1 API source. I'm turning them into the store's Blueprint: catalog, product descriptions. Data from the APIs will stay up to date on its own.
+ Add a file
+ Connect an API
PDF · JPG · TXT · XLS · API
Blueprint
Your whole system in one independent description
A Blueprint describes what your system does: screens, data, rules and look. It is self-contained and light, while the heavy lifting, from running on devices to sync and security, comes from Nexus.
Every system has its own independent Blueprint
Changes by command, every version with full history
A light description instead of thousands of lines of code
A finished system can be the template for the next one
BLUEPRINT
sklep.kora-len
Example
v24
Add BLIK and instalment payments
Run
SCREENS
DATA
Products
Orders
Customers
RULES
Free delivery over 200 PLN
from Nexus:
sign-in
payments
notifications
Click “Run”: only what the command is about changes
Nexus
One engine. Every app benefits at once.
Nexus reads the Blueprint and renders a native app from it. When the engine gets a new capability, every app gets it at once, without rebuilding each one.
Add a capability to the engine
Dark mode
BLIK payments
AI assistant
Notifications
Pick a capability and watch it reach every app.
NEXUS
version 4.1
Example
Nexus provides
You focus on the Blueprint. Nexus handles the rest.
Everything a working system needs is already in the engine. You don't build it, maintain it or look after it separately in every app.
YOU
Blueprint
in a conversation with an AI agent
What your system does
Screens and flows
Data and rules
Look and content
Only what makes your system unique.
NEXUS
provides for every app
Server and database
Hosting, database and backups. Nothing to set up yourself.
Scalability
Traffic grows and the app keeps up, with no changes to the Blueprint.
Security
Encryption and data protection. Everyone sees only what they are entitled to.
Sign-in and roles
Accounts, sign-in with an e-mail code, permissions.
Payments
BLIK, cards, subscriptions and instalments.
Sync and offline
The same data on every device, even without internet.
Notifications
Push, e-mail and SMS at the right moment.
Instant updates
A new Blueprint version reaches users without shipping a new app.
Speed
Light apps and fast loading from the nearest server.
Languages
Many language versions of one system.
Accessibility
Screen readers, contrast and text scaling.
Privacy and GDPR
Consents, data export and deletion on request.
Advantages
Less code to maintain. More apps from one engine.
FractalAI's architecture moves complexity into the engine. That makes building and maintaining apps fast, stable and very inexpensive.
The agent uses fewer tokens
AI edits a short, precise Blueprint instead of thousands of lines of code. Less to read, fewer mistakes, faster changes.
Stability by design
Logic runs in the engine, proven once for every app. The Blueprint is validated before each release.
Inexpensive to build and run
Instead of separate code for each platform, you maintain one light Blueprint. The engine does the rest.
In your own AI assistant
You create the Blueprint in the AI assistant you use every day. No new tool, no learning from scratch.
Under your brand
Your own name, colours, domain and tone. Users see your app, not our platform.
Your data, your Blueprint
You can always export your data and Blueprint. Customer systems are isolated from each other.
Releases
Every change is checked before users see it
A command to the agent creates a new Blueprint version. The engine validates and tests it, then rolls it out gradually, and you can roll back at any moment.
Release v26 · Kora & Len
In production: v25
Example
v24
v25
v26
Command
Verified
Some users
Everyone
Add free delivery over 200 PLN
Structure
Tests
Access
Platforms
The change is waiting to be checked
Each dot is a group of users
Send command
Isolation: other systems unchanged
Validation
The Blueprint's strict structure lets every change be checked.
Tests
App scenarios run before every release.
Gradual rollout
Some users first, then everyone.
Rollback and isolation
The previous version returns in one click. Other systems stay untouched.
Try it
Build your first app with an AI agent
Describe what you need, attach your materials or connect an API. You only create an account when you want to generate the app.
You share files, photos and API access with your assistant in the conversation.
Generate
Examples:
Store
Bookings
Online course
You sign in only when you generate.
Working in your own AI assistant?
MCP
Connect FractalAI via MCP and create your Blueprint where you already work.
"fractalai": { "type": "http", "url": "https://fractalai.io/mcp" }
Copy
In Claude: Settings › Connectors › Add custom connector, then paste the connector address.
AI agent
Example
FractalAI via MCP
Build a linen clothing store. Take products from my API, calm style, free delivery over 200 PLN.
Reading the catalog and photos
Fetching products and prices via API
Creating the system's Blueprint
Validation and tests
Preview ready
Who it's for
One platform, three ways to work together
Creators, partners and investors build on the same technology, each in their own way.
Built on Nexus
ForceKnow
A platform of creators' apps. Every creator gets their own app with the features they need: video courses, quizzes and games, community, a shop or bookings. All of them run on the same engine.
Video courses
Quizzes and games
Community
Shop
Bookings
Start with one conversation
Tell the agent about your system and give it your data. The agent creates the Blueprint, and Nexus takes care of the rest.
Book a demo
You sign in only when you generate.
Contact
Let's talk
We'll show you the platform live, answer your questions and help you plan your first system. Write to us and we'll get back to you quickly.
Topic
I'm a creator
Partnership
Investment
Other
Send message
We'll reply to the address you provide.
FractalAI is the data controller. We process your name, e-mail and message only to reply to you (legitimate interest) and keep them only for as long as the correspondence lasts.
FractalAI
A platform for AI-built apps. Every system is its own Blueprint. One engine, every device.
Product
Who it's for
Company
Contact
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