EU Sovereignty Score
Self-hosted / open sourceAI CoworkHeadquarters: US

Mastra: sovereignty score and 8 European alternatives

Mastra is an open-source TypeScript framework for building AI agents and workflows, with memory and observability built in. Developers create a project with a single command and deploy the application to any Node.js-compatible environment or as a standalone server. The core is licensed under Apache 2.0, while code in enterprise directories falls under the separate Mastra Enterprise License. The company behind the framework is based in San Francisco.

For a European organisation, the framework itself is the main sovereignty asset: it runs on infrastructure the organisation controls, so data need not leave its environment. Enterprise modules fall under a separate licence that should be read before adoption. For the optional Mastra Platform, the public pages name neither a parent company nor a hosting region, so a hosted option should be assessed separately, bearing in mind the company's US base.

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 11, 2026
Headquarters
US (US)Verified by hand
EU adequacy decision
Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Data hosting
Self-hosted, e.g. in US (your choice)Verified by hand
Open-source
YesVerified by hand
GDPR-compliant
NoVendor-stated
Category
Type
Product
Website

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Mastra

The European alternatives to Mastra come from our knowledge base of over 6,800 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

20 European AI Cowork vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is Mastra one of many dependencies?

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

Why digital sovereignty matters with Mastra

Mastra 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.

Mastra 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.

Mastra 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 Mastra 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 Mastra?

It depends on your use case. Strong EU alternatives to Mastra include 2501.ai, Beam and Cognigy. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Mastra?

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

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

Mastra 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 11, 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 AI Cowork

AI Cowork: Autonomous AI desktop agents — multi-step task execution, document processing, workflow automation. 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 →
8 European alternatives to Mastra — GDPR-compliant & EU-hosted · EU Sovereignty Score