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What is the French EUDI Wallet sandbox?

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The French EUDI Wallet sandbox, officially referred to as the EUDIW Playground, is a controlled testing environment operated by the France Identité team. It functions as a practical interoperability environment where wallet interactions can be tested before production.

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France Identité itself is the official French digital identity application and a key component of France’s future EUDI Wallet landscape. The Playground is separate from the live citizen application and runs on synthetic test data, while still mirroring production logic closely enough to support realistic testing.

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Instead of discussing interoperability only at the level of standards, the Playground allows ecosystem participants to observe how wallet interactions behave in practice.

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Why this matters now

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France is no longer treating wallet infrastructure as a distant policy topic. With France Identité already deployed and the EUDIW Playground open to ecosystem participants, the conversation is shifting from coordination to practical implementation.

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This matters well beyond France. Under eIDAS 2.0, national wallets will need to work across borders and sectors. Environments like the French Playground allow technical teams to validate compatibility early and better understand how real wallet flows behave before relying party integrations become more widely adopted.

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Openness to non French actors

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The French Playground is not limited to French participants. It is open to ecosystem actors from other countries who want to validate interoperability with the French wallet environment.

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This is particularly relevant for technical ecosystem participants such as wallet providers and technology providers. They can request access to the Playground and, once onboarded, use a PID credential to go through existing flows from the user side.

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What this currently enables is the ability to experience and evaluate available scenarios inside the French environment. What it does not yet mean is that organizations can freely deploy and orchestrate their own custom relying party flows inside the Playground on their own.

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This distinction matters. For organizations that want to go beyond user side testing and prepare their own interoperable use cases, working with a technology provider such as Lissi becomes relevant.

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Organizations interested in joining the EUDIW Playground can request access directly through the France Identité team.

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For onboarding requests, contact: [email protected]

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What Lissi has deployed in the French Playground

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From the Lissi perspective, the most relevant part is the deployment itself.

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Inside the French Playground, Lissi has deployed a web application that connects to the externally hosted Lissi Connector using its issuer and verifier capabilities.The application layer runs inside the Playground environment, while the underlying connector infrastructure remains operated by Lissi.

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For organizations exploring wallet based identity, this is more than a simple demo. The marketplace illustrates how concrete wallet enabled user journeys can work in practice and how specific use cases can be implemented on top of the Lissi infrastructure.

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The Lissi Connector acts as a single normalized integration point that abstracts the complexity of the EUDI Wallet ecosystem. It handles foundational protocols such as OpenID4VCI, OpenID4VP and SD-JWT, while maintaining alignment with the evolving EU Architecture and Reference Framework (ARF).

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This allows technical teams to focus on designing their user journeys and business logic, instead of managing protocol implementations, trust chains, and integrations across multiple national wallet environments.

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What you can test in the Lissi Marketplace

Access to the Lissi Marketplace currently starts with PID verification. Once verified, users can enter the marketplace environment and explore a set of concrete wallet based scenarios.

At the moment, the marketplace includes four use case areas:

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1. Passenger Registration: A live flow where users check in with their European Digital ID. The current setup combines identity verification with DC API based flight registration and boarding ticket issuance.
2. Employee Onboarding: A live flow where users submit their PID and receive an employee credential within the same interaction.
3. Smart Shopping: An upcoming scenario focused on age verification for restricted items.
4. Access Control: An upcoming scenario focused on secure access to restricted areas. From the Lissi perspective, this is especially relevant because access related employee use cases are also part of the broader direction of the Lissi Employee Wallet, where wallet based credentials can move into enterprise access management.

What makes the Marketplace valuable is that it already shows more than a single isolated demo. It provides a practical view of how wallet based identity can support different types of services, from travel and onboarding to retail and enterprise access.

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Participants who already hold a PID credential can use the live flows to experience these interactions and test interoperability across different wallet implementations, including the French wallet, the German wallet, and the Lissi wallet.

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What this proves about interoperability

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Interoperability is one of the core promises of the EUDI Wallet, but in practice it must be validated across real implementations. This is why interoperability events such as UNFOLD play an important role. They bring together wallet providers, verifiers, issuers, and technology teams to test how their implementations behave under realistic conditions.

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Lissi regularly participates in these sessions and continuously validates the behaviour of the Lissi Connector across multiple wallets. The Lissi Connector is designed to ensure interoperability with all EUDI Wallet implementations, regardless of the issuing country.

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For a deeper technical perspective of Interoperability, read our article: “The EUDI Wallet Interoperability Challenge: Why One Standard Is Not the Whole Story.”

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This work is also reflected in Lissi’s collaboration with the France Identité team. During interoperability testing, Lissi successfully validated wallet interactions with the France Identité environment and is authorized to communicate this capability using the official “Ready for France Identité” interoperability badge.

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The deployment inside the French sandbox therefore reflects practical interoperability work that is already being exercised through concrete wallet based flows.

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How organizations can prepare with Lissi today

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For organizations, the French Playground is not yet a full relying party sandbox in the commercial sense. Its value today lies in helping teams understand how wallet based identity flows behave in practice and what future interactions with national wallets may require.

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However, organisations do not have to wait for the full wallet rollout, nor do they need to build everything themselves inside the Playground. With Lissi, they can explore, shape and test specific EUDI Wallet-based use cases now, with the Lissi EUDI Wallet Connector and interoperable wallets, such as the French or German national wallets, among many others.