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Simpl

The European Commission’s open-source middleware, to connect data spaces.

Let’s discuss your projectSimpl website (new tab)

Status
Programme under way
Led by
European Commission
Onecub’s role
Through Digital New Deal: co-initiator of InfrateX, writing and coordinating its proposal
Sector
European infrastructure
Participants talking in a purple-lit hall at the Simpl annual event
Simpl Annual Community Event, Brussels, 29 January 2026. Photo: © European Union, Simpl programme

The need.

European data spaces are multiplying. To connect, they need common building blocks that are neutral towards vendors.

Simpl is the European Commission’s open-source middleware. It provides reusable building blocks to access and exchange data with trust across European data spaces and cloud-to-edge federations: identity and trust, catalogues, usage policy enforcement, connectors and monitoring.

Onecub’s role.

  • Co-initiator of the InfrateX consortium, with Sopra Steria and Digital New Deal.
  • Writing and coordinating InfrateX’s response to the European Commission’s call.
  • Studies on architecture and feasibility.
  • Support for data spaces adopting Simpl, within a sector or across sectors.

What this contribution achieved

  • A Simpl programme framework contract, won in 2023 by the InfrateX consortium, whose proposal Onecub wrote and coordinated.

The InfrateX consortium.

Led by Sopra Steria with NTT Data, InfrateX brings together 26 partners from 14 countries: digital services companies, cloud providers, software vendors, research organisations and associations. In 2023 it won a framework contract of the Simpl programme.

Onecub takes part in Simpl through Digital New Deal, a member of the InfrateX consortium. We co-initiated InfrateX with Sopra Steria and Digital New Deal, then wrote and coordinated the consortium’s proposal. We provide architecture and feasibility studies, governance models and component integration to make Simpl deployable in operational data spaces.

Adopting Simpl, step by step.

  1. Assess.Map Simpl to your infrastructure and assess feasibility.
  2. Design.Select components: connectors, identity and trust, policy engine, catalogues.
  3. Integrate.Plug Simpl into your infrastructure and collaboration tools.
  4. Go live.Launch a first use case, measure, secure, scale.
  5. Evolve.Operations guides, monitoring, audits, upgrades in step with releases.
  • Architecture and deployment plan
  • Rulebook alignment
  • Interoperability profile
  • Pilot with indicators
  • Handover and training

Where is the project?

Simpl has three strands: Simpl-Open, the open-source software stack; Simpl-Live, deployments in real data spaces; Simpl-Labs, a sandbox to test interoperability. The community met in Brussels in January 2026 for its annual event.

Further reading

In the InfrateX consortium

All 26 partners in Sopra Steria’s press release (new tab)

Start with Simpl?

Data space, public administration or provider: let’s talk about your path.

Let’s discuss your project

Or write directly to contact@onecub.fr