Add AI to existing software, an app or SaaS
You don't need to build a completely new AI product. Often most of the value lies in one smart feature inside software users already know. We make sure that feature fits the existing product technically.
Does this sound familiar?
The problem is usually not how to call a model, but how the new functionality should relate to the existing product.
The feature needs existing product data
AI has to work with users, documents or other information already in the product.
Permissions must simply keep working
AI must not suddenly expose information or actions that are protected elsewhere.
The existing UX should stay in charge
Users want a better workflow, not necessarily a chat interface.
You don't want to rebuild the current product
The AI layer has to connect to what already works well technically.
Where do you want to be?
The new AI functionality should feel like part of the product, not like a chatbot glued on later.
AI fits the existing user flow
The feature supports what users are already trying to do.
The existing architecture stays manageable
AI is integrated without needlessly adding a second technical world.
Production risks are covered
Costs, latency, errors and uncertain model behaviour get a place in the design.
Why does this happen?
Integrating a standalone AI API is easy. Designing AI as a reliable part of existing product software is another story.
See how we approach thisExisting software already has rules
Data, permissions, business logic and user expectations are largely fixed.
AI introduces other failure modes
Latency, incorrect output and variable costs have to be handled in existing flows.
The new feature can end up too detached
A separate AI system quickly leads to duplicated data and logic.
Build & Integrate
With Build & Integrate we add the AI functionality to the existing codebase and systems in a targeted way. When the new component is technically risky or still uncertain in substance, an AI Prototype Sprint can first prove the core.
View this offerFixed price after scoping
Fixed price after joint scoping
- Result
- Working, integrated software your team can take over
- Duration
- Set in the scope
- Next step
- Handover to your team, or further development together
Why 9to5 for this?
Understanding and extending existing software is a big part of our work. So AI doesn't need a greenfield to be built well.
View casesUnderstand the existing architecture first
We design the AI feature around what already works.
Integration over isolation
Data, auth and business logic are not duplicated unnecessarily.
Production from the design onwards
Reliability and operational consequences count before the feature goes live.
What else fits your situation?
AI Prototype Sprint · €6,950 excl. VAT
From one concrete AI idea to a working end-to-end prototype that lets you actually test the key technical assumptions.
View offerExtend existing software with agentic workflows
Your existing software already does a lot well, but some workflows could be smarter if AI gathered information and carried out next steps on its own.
View use caseMake your own documents, data and knowledge usable for AI
The valuable information is already there. Now AI has to be able to work with it reliably, securely and practically.
View use case