tentacl.ai builds and runs business software for small and medium-sized companies in Germany, Austria and Switzerland: booking systems for campsites and appointment-based businesses, ERP software built on Odoo 18, CRM for sales and customer care, and e-commerce with a direct link to stock and invoicing. What takes four separate programs elsewhere runs here in one system, with AI agents handling the clicking in between.
Choose the starting point you’re missing right now. Everything else can be connected later, with no data export and no double entry.
Online booking with pitch selection on the site map, appointment booking, deposit and balance payment, guest account and till. In daily use at Camping am See in Allensbach on Lake Constance.
Accounting, orders, stock, purchasing, till and HR on Odoo 18. AI agents book receipts, reconcile the bank, and write invoices.
Leads, pipeline, quotes and customer records in the same system as orders and invoices. E-mails automatically become tickets, and replies come as drafts.
Online shop or order app connected to stock, invoicing and label printing. As an Odoo shop or as its own app, like the bread roll service for campsites.
Because the friction isn’t inside the programs, it’s between them.
Booking, customer, invoice and stock movement all live in one database. There are no overnight sync jobs that can go wrong.
Receipts are read and coded, bank transactions matched, invoices created and sent. Whatever’s left over lands as a task with a person.
Hosted at Hetzner in Falkenstein, AI via EU endpoints, a data processing agreement on request. Your data belongs to you and can be exported at any time.
A project budget set in advance, no commission per booking or order, no licence fee for the ERP core. Operation and maintenance from €99 a month.
Robert Bückel runs every project himself, from the first conversation through support after launch. No ticket system between you and the person who knows the system.
tentacl.ai’s own accounting runs on this exact ERP, with a daily bank feed and AI coding. We don’t sell software we wouldn’t put up with ourselves.
You describe how you work. We tell you honestly whether and how we can help, and give you a ballpark for cost and timeline.
A working piece of software with real data, at a fixed price. For the ready-made products, that’s setting up your own tenant.
Data migration, training, the first days in live use. After that, ongoing maintenance, updates and extensions as needed.
A selection from all projects.
Lake Constance, 154 units: online booking with pitch selection on the site map, guest account, wallet card, tourist tax, registration form, reception and till. In daily operation since summer 2026.
To the booking platform →Guests order by phone in the evening, the bakery gets the combined order, and the labels go on in the morning. Running at Natur & City Camping and at Seefeldpark.
To the bread roll service →Our own accounting runs on the ERP: a daily bank feed including credit cards, AI coding, a daily reconciliation of receipts and bank, and a cash-flow plan.
To the ERP software →Both. The booking platform and the bread roll service are our own products with fixed prices. For ERP, CRM and online shops, we build on Odoo 18 and add our own AI agents. In every case, we run the system for you on German servers.
The core of our customers has between 5 and 100 employees: campsites, trades and service businesses, retail, hospitality, property management. For large corporations with hundreds of users, we’re not the right partner.
The booking platform for campsites starts at €790 a month, or as a purchase. The bread roll service costs €199 setup and then €333 per season or €444 per year. ERP, CRM and shop projects range from €8,000 to €30,000 one-off depending on scope, plus operation from €99 a month.
Yes, that’s the normal case. Many start with booking or the shop and connect accounting and CRM later. Since everything sits on the same data set, there’s no migration between the steps.
On Hetzner servers in Falkenstein, Germany. AI requests run via EU endpoints. We’ll sign a data processing agreement on request.
In 30 minutes we’ll work out whether one of our products fits or a project makes sense. Afterwards you get a cost estimate, not a slide deck.