DocsSign inJoin the beta

Own your intelligence.

Kastel isn’t an AI. It’s the fortress that holds your company’s knowledge, and you decide what each AI is allowed to see.

Join the betaSee pricing

Plugged into your Kastel, the AI answers with your data.

“What is our customer refund window, and who can make an exception?”

Companies generally refund within 14 to 30 days. I would suggest checking your terms and conditions.

What your Kastel holds

A structured representation of your company that any AI can read.

The organisation

The departments that actually exist, who does what, who reports to whom.

The processes

How the work really gets done at your company: the real procedure, exceptions included.

Permissions

Who is allowed to see what, and who a request goes to for approval.

The entities

Clients, projects, suppliers, products. Linked to each other and never duplicated.

The memory

The decisions taken, their date, their reason, and what they replaced. Nothing is erased.

How your AI agents improve

Every plugged-in AI agent logs the history of its actions, and the lessons it has learned.

Your Kastel is versioned text files. That is what makes full export possible: your content is locked into no proprietary format - it is natively OKF-compliant (Open Knowledge Format), the open standard published by Google.

How it gets built

01

You drop in your key documents

A dozen documents are enough to describe a company: org chart, offers, business model, master procedures.

02

The engine reads what already exists

It derives a first org chart, the real departments, the entities that keep coming up. Before the first question is even asked.

03

A short interview

The organisation, the key processes, who decides what. The engine never asks again for something already present in your sources.

04

You validate

The engine proposes an org chart and a responsibility matrix. You correct it, you settle the ambiguous cases, you approve.

Your Kastel takes shape in one session.

With no data team and no weeks of mapping. The actual duration depends heavily on the size and complexity of your company: it is what the product aims for, not an average measured across dozens of deployments.

Each AI has its own access.

A plugged-in AI reads only its perimeter. You cut its access in one click, and the others keep working.

Plugged-in AIPlugged in byIt readsAccess
Quotes agent
Claude Cowork
Camille Fabre
Head of Sales
SalesOperations
Plugged inread 2 min ago
Dunning agent
Mistral
Marc Lenoir
CFO
FinanceSales
Plugged inread Monday 08:00
Stock agent
Local model
Inès Roux
Workshop Manager
Operations
Plugged inread 40s ago
Executive assistant
GPT
Paul Vidal
CEO
The whole company
Plugged inread yesterday 18:12
audit chainNo access cut today.

What an AI learns while working becomes a proposal. It never writes into your Kastel itself: a manager approves, corrects or refuses.

How AIs plug into it

Kastel runs no model. It publishes your context, and the AIs come and work on it.

Quotes agent only reads Sales and Operations.

Quotes agent, on Claude Cowork, only reads Sales and Operations. It doesn’t read Marketing, Finance, Customer support, HR.

MCP, the standard socket

MCP is the standard that connects an AI to an organisation’s tools and data. Kastel is an MCP server: that is how your AIs reach your company’s context.

Your own AI keys

Your Kastel runs on your own AI, at the provider you already use or on a model running at your place. Kastel never resells AI and takes no margin on it. And your console shows you what your AIs cost you.

Read the connection guide

How your Kastel grows

AI proposes, your team decides.

Refunds

1

Refund window: 14 calendar days.

2

Above €500, the exception goes through the Sales Director.

Refund window for framework-contract clients: 5 business days.

Support Agent
audit chain#4823 · pending

What an AI learns does not die with its session. It leaves it in your Kastel, and the next AI starts from what you approved, whichever vendor it comes from.

Kastel in action

A 120-person industrial company in precision engineering.

It connects an AI key and drops in its key documents.

  1. The owner

    Sits through the scoping interview. The engine has already pre-filled whatever the documents said and proposes an org chart and a responsibility matrix. Approves, corrects, settles the ambiguous cases.

  2. The methods manager

    A month later, plugs in the AI of their choice and asks: “what is our qualification procedure for a new supplier on a critical part?” The AI answers correctly, because it reads the company’s real process, and only what its scope allows it to see.

  3. The quality manager

    Approves the changes an agent proposes on a supplier record, down to the exact effect. Everything is recorded.

Nobody had to learn a concept. The owner approved an org chart, the quality manager approved a change.

Your Kastel belongs to you

Your data, your context, your infrastructure

Kastel runs on your own server if you want it to, and the complete core is free there.

Full export

One command, and everything comes out: context, governance, audit logs. No proprietary format to crack, they are text files.

Open interface

The protocol AIs plug into, the export format and the connector contract are open and standard.

Hostable in Europe

If you would rather operate nothing, we host and run a dedicated server for your company, in Europe.

Let’s build your fortress.

Join the betaSee pricing

Would you rather have help? Our partner integrators take care of it.