Non-EU vendorAI SecurityHeadquarters: US

Braintrust: sovereignty score and 8 European alternatives

Braintrust is an observability and evaluation platform for AI agents. Teams trace prompts, responses and tool calls in real time, track latency, cost and quality, run experiments on datasets, and score outputs with language models, code or human reviewers. Production traces can be turned into evaluation datasets with one click. SDKs are available for Python, TypeScript, Go, Ruby and C#, among others, and an MCP server lets developers query logs and run evaluations from an IDE. The platform is not open source.

Braintrust Data, Inc. is a US company. Besides the managed cloud service, Braintrust offers a hybrid model: the data plane holding logs, datasets and evaluation results runs in your own AWS, GCP or Azure environment, while Braintrust hosts the web application and metadata. According to the vendor, browser requests go directly to your data plane. A fully self-hosted variant is also available for organisations that need complete isolation. For a European organisation, this choice determines where data resides; the vendor itself is subject to US jurisdiction.

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

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Sovereignty score

17 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-30
No hosting in Europe (US)
Cryptographic key sovereignty SOV-320
Key management with a non-European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-615
Closed source, runtime with the vendor

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 6, 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	Vendor-hosted (non-EU)Verified by hand
Data hosting	USVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	AI Security
Type	Product
Website	braintrust.dev ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Braintrust

The European alternatives to Braintrust 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

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

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Why digital sovereignty matters with Braintrust

Braintrust 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.

Braintrust 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.

Braintrust is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Braintrust 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 Braintrust?

It depends on your use case. Strong EU alternatives to Braintrust include 2021.AI GRACE, CalypsoAI and Giskard. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Braintrust?

Yes. Open-source EU alternatives to Braintrust include Giskard and Mistral Shieldstral. These keep your data fully under your own control and let you self-host if you want to.

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

Braintrust is headquartered in US and hosts data in US. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. 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 6, 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 Security

AI Security: Security for AI/LLM systems — prompt-injection detection, AI red-teaming, agentic security posture management and AI governance guardrails. 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.

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