Sovereign AI: a European-owned AI gateway (Opper on evroc)

Opper on evroc is a sovereign AI gateway: the same Opper, running as its own instance on evroc, the Swedish cloud. Pair it with model providers that are European-owned and host their models in Europe, and your data stays with European companies from your app to the model. It is for teams where EU residency is not enough and policy requires European ownership at every hop, such as government and the public sector, defense, critical infrastructure, and regulated industries. It does for Opper what a government cloud region does for the large US clouds: the same product, run separately for workloads that cannot sit on shared commercial infrastructure.

Access is by onboarding, not self-service sign-up. Contact us and we set up your organization on the evroc instance. More at opper.ai/sovereign-ai.

European at every hop

Hop	Company	Country
Gateway	Opper Technology AB, your processor under a DPA governed by Swedish law, ISO/IEC 27001:2022 certified	Sweden
Cloud	evroc	Sweden
Model provider	A European-owned provider that hosts its models in Europe	Europe

What you can do

Everything you build on Opper works on the evroc instance:

The gateway: one OpenAI-compatible API for chat completions, structured output, tool calling, streaming, and fallbacks across models.
Rules, on Control Plane, set once for the whole organization: a monthly spend limit, how long traces are kept, which models and providers are allowed, checks that redact or block sensitive content before a model sees it, and the order providers are tried in.
Usage for every call, and traces once you turn tracing on, kept on the same instance.

The instance has its own account, API keys, and address. Projects build against the same API on both instances, so moving between them means changing the base URL and the API key:

	Main platform	Opper on evroc
Platform	`platform.opper.ai`	`evroc.on.opper.ai`
API	`https://api.opper.ai`	`https://api.evroc.on.opper.ai`
Runs on	AWS Stockholm (`eu-north-1`)	evroc, Sweden
Access	Self-service sign-up	Onboarding

curl https://api.evroc.on.opper.ai/v3/compat/chat/completions \
  -H "Authorization: Bearer $OPPER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mistral/mistral-large-2512",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Use an API key from the evroc instance. Keys from the main platform do not work there.

Keep every call sovereign

Sovereign routes

A route is sovereign when the company operating it is based in Europe and the model runs in Europe. That covers Mistral’s own models and open-weight models on European hosts such as Berget, evroc, GreenPT, Regolo, and Scaleway. Call any of them by its route ID, such as mistral/mistral-large-2512. The model catalog records both facts for every route: provider.owner_country is where the operator’s ultimate parent is based, and compliance.inference_location is where the model runs. It needs no API key.

Enforce it for your organization

On Control Plane, one Model access rule makes sovereign routes the only ones your organization can call. In Rules → Model access, set Inference location and Provider country to the same area, such as EEA. The Management API takes the same areas and country codes. This rule also admits the UK and Switzerland:

curl -X POST https://api.evroc.on.opper.ai/management/v1/controls/rules \
  -H "Authorization: Bearer $OPPER_MANAGEMENT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "id": "'$(uuidgen | tr A-Z a-z)'",
    "kind": "comply",
    "enabled": true,
    "scope": {"type": "org"},
    "config": {"type": "allowlist", "allowlist": {"provider": {"locations": {
      "inference": {"include": ["EEA", "GB", "CH"]},
      "jurisdiction": {"include": ["EEA", "GB", "CH"]}
    }}}}
  }'

jurisdiction is the Provider country field. Both fields match by containment, so EEA admits a route in Sweden. A call pinned to a route outside the rule is refused with 403 before it reaches a provider, and a bare model name skips the providers outside it.

Other markets and custom deployments

Opper on evroc is a dedicated instance for Europe. The same Opper can run as a dedicated instance for another market, inside your own cloud account (AWS, Azure, Google Cloud, or a national sovereign cloud), or on your own hardware, with the same API on every option. If you need sovereign AI outside Europe or on your own infrastructure, contact us.

Need Claude, GPT, or Gemini?

Most teams need EU residency rather than sovereignty. The main Opper platform runs in AWS Stockholm and serves Claude, GPT, and Gemini from EU data centers on AWS, Azure, and Google Cloud. See Keep AI inference in the EU.

Keep AI inference in the EU

Enforce EU-only inference and storage for every call on the main platform.

Model access

Every allowlist field, including provider country and inference location.

Enforce zero data retention

Store no content at Opper and allow only providers that neither train on nor log it.

Security

Certifications, hosting, DPA, and sub-processors.

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Sovereign AI: a European-owned AI gateway (Opper on evroc)

European at every hop

What you can do

Keep every call sovereign

Sovereign routes

Enforce it for your organization

Other markets and custom deployments

Need Claude, GPT, or Gemini?

Keep AI inference in the EU

Model access

Enforce zero data retention

Security

​European at every hop

​What you can do

​Keep every call sovereign

​Sovereign routes

​Enforce it for your organization

​Other markets and custom deployments

​Need Claude, GPT, or Gemini?

​Related

Keep AI inference in the EU

Model access

Enforce zero data retention

Security

European at every hop

What you can do

Keep every call sovereign

Sovereign routes

Enforce it for your organization

Other markets and custom deployments

Need Claude, GPT, or Gemini?

Related