Self-hosted / open sourceAPI ManagementHeadquarters: US

Kuadrant: sovereignty score and 8 European alternatives

Kuadrant is an open-source project that extends the Kubernetes Gateway API with a connectivity management layer. Platform teams attach policies for TLS, DNS, application authentication and authorisation, and rate limiting to gateways. It works with gateway providers such as Istio and Envoy Gateway and provides observability templates. It is installed on Kubernetes with Helm or the Operator Lifecycle Manager (OLM). The project website describes it as a sandbox project of the Cloud Native Computing Foundation, originally created by Red Hat.

The code is released under the Apache 2.0 licence and runs on the organisation's own Kubernetes clusters. The project does not describe a hosted service of its own. Governance sits with the CNCF, a Linux Foundation project with its seat in the United States. For a European organisation, the sovereignty question is mainly the Kubernetes environment it runs in: the software can be operated and audited on European infrastructure, while the governance and community are based in the United States.

See the 8 European alternatives ↓Assess your stack with Kuadrant pre-selected

Mastodon LinkedIn Bluesky X Email

Sovereignty score

69 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-3100
No hosting in Europe (US)
Cryptographic key sovereignty SOV-390
Self-hostable: encryption keys under your own control
Freedom from lock-in SOV-680
Open source: low switching costs
Source & runtime sovereignty SOV-4 · SOV-665
Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 12, 2026

Headquarters	US (US)Verified by hand
EU adequacy decision	Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	USVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	NoVendor-stated
Category	API Management
Type	Product
Website	kuadrant.io ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Kuadrant

The European alternatives to Kuadrant come from our knowledge base of over 7,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

19 European API Management vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is Kuadrant one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with Kuadrant

Kuadrant is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

Kuadrant hosts data outside the EU (US). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

Kuadrant is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Kuadrant together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Kuadrant?

It depends on your use case. Strong EU alternatives to Kuadrant include Alumio, Apideck and Axway. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Kuadrant?

Our list of EU alternatives to Kuadrant is mostly commercial options. Browse the category on the map for open-source choices.

Is Kuadrant GDPR-compliant and where is the data hosted?

Kuadrant is headquartered in US and hosts data in US. Its GDPR compliance is limited or unclear. For full EU data residency the EU alternatives on this page usually offer more certainty.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 12, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in API Management

API Management: API gateways, API management, developer portals and API security. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

See all →

Open in the alternatives dashboard Missing a vendor? Submit it Are you this vendor? You can also become a sponsor on the API Management page — with no effect on your score