Tools we use
Last updated: 1 March 2026
This is a full record of every tool and service that runs Klai. Some are sub-processors under GDPR: they handle personal data on your behalf and are covered by our DPA. Others are open source software we run on our own infrastructure, where no data leaves our servers. We note the difference.
The GDPR-specific sub-processor list is at /docs/legal/sub-processors.
Hosting
| Tool | What it does | Location | Sub-processor |
|---|---|---|---|
| Hetzner Online GmbH | German hosting provider. Our servers run in their Finnish data center. Everything stays in the EU. | Finland (EU) | Yes |
| Cloud86 | Dutch domain registrar. Manages the getklai.com domain and DNS. Holds registrant data only, not customer data. | Netherlands (EU) | No |
Platform management
These run on our own Hetzner servers. No customer data leaves our infrastructure.
| Tool | What it does |
|---|---|
| Coolify | Open source deployment platform. We use it to manage containers, updates, and services on our own infrastructure. |
| Kuma | Open source uptime monitor. Checks whether our services are running and alerts us when they are not. |
Product
| Tool | What it does | Sub-processor |
|---|---|---|
| Fider | Open source feature voting and roadmap software. If you submit a request or vote, your email is stored on our own infrastructure and stays safe with us. | No |
| Twenty | Open source CRM. We use it to manage customer relationships. Runs on our servers. Your contact details stay with us. | No |
AI inference
| Tool | What it does | Location | Sub-processor |
|---|---|---|---|
| Ollama | Open source software for running language models locally. We use it to serve AI models on our own infrastructure. Nothing leaves our servers. | Klai infrastructure | No |
| Mistral AI | French AI company whose models we use for inference when our local models are not sufficient. Query content is processed on their servers and not retained. | France (EU) | Yes |
Payments
| Tool | What it does | Location | Sub-processor |
|---|---|---|---|
| Mollie | Dutch payment processor, supervised by De Nederlandsche Bank. Handles card payments and direct debit. We never see or store card details. | Netherlands (EU) | Yes |
This document is published under CC BY 4.0. You are free to adapt it for your own organisation. Credit: Klai B.V.