The semantic layer above your IT.
Äther does not replace systems. Äther understands what you already have — and turns it into a harmonised, explainable and sovereign data foundation. Data stays where it originates. What changes: it is connected, semantically understood and usable with an audit trail.
Data stays where it originates. Äther places a semantic layer above it — and turns distributed systems into a shared truth.
Six components, one layer.
Each building block can be used on its own — but together they form the backbone on which Atlas, Socius, Chronos and your own applications run.
Connect instead of replicate
Standardised adapters to GIS, ERP, logs, sensors, OSINT, public-authority APIs. Data is referenced, not copied — source and target systems keep their sovereignty.
Shared language
A domain-specific vocabulary (actor, place, event, time) translates between source systems. Without an ontology, every analysis remains just an Excel list.
Inference & models
ML and rule engines with model registry and confidence tracking. Inference runs on your infrastructure — no data leaves your scope.
Flux — orchestrated data flows
Declarative pipelines tie sources, models and outputs together. Versionable, testable, repeatable — from pilot to regular operation without a break.
Every statement traceable
Per inference: which source, which model, which confidence, which point in time. Aligned with the EU AI Act, BSI C5 and internal compliance requirements.
You remain the owner
On-premise, private cloud or European PaaS. Data, models and audit logs stay yours. No telemetry, no US-cloud dependency, no black-box vendor lock-in.
Layer diagram: source systems stay in your control, Äther connects and understands, modules deliver use cases. Schematic — the actual topology depends on your environment.
The building blocks, as you operate them.
Two examples from the live instance: the ontology module, in which data classes, properties and relationships are modelled without code — and the Flux dashboard, which makes every pipeline run, every source and every status traceable.


Sovereignty is not a feature. It is the basic assumption.
- LocationDevelopment, operation and hosting in Germany.
- HostingOn-premise, private cloud or European PaaS — your choice.
- ComplianceAligned with BSI C5, EU AI Act, ISO 27001 auditing.
- Open sourceCore infrastructure on an open basis — no black-box lock-in.
- TelemetryDisabled by default. No data leaves your perimeter.
A semantic layer above your IT — in 6 weeks.
We start with two to three sources and a clearly defined use case. You keep your data, models and audit logs.