Open Internet Stack: development of technological commons/open-source 3C building blocks (RIA)

Opened

Programme Category

EU Competitive Programmes

Programme Name

Horizon Europe (2021-2027)

Programme Description

Horizon Europe is the European Union (EU) funding programme for the period 2021 – 2027, which targets the sectors of research and innovation. The programme’s budget is around € 95.5 billion, of which € 5.4 billion is from NextGenerationEU to stimulate recovery and strengthen the EU’s resilience in the future, and € 4.5 billion is additional aid.

Programme Details

Identifier Code

HORIZON-CL4-2025-03-DATA-11

Call

Open Internet Stack: development of technological commons/open-source 3C building blocks (RIA)

Summary

This action will foster an Open-Source framework, developed through commons, i.e. Open Source software governed by communities of contributors, that will provide key technology components for the operation of the 3C large scale pilot. They will be addressing relevant areas, structuring them in a stack and supporting the development of 3C building blocks making them available through a library of digital commons supporting applications on top of the European providers ecosystem.

Detailed Call Description

It will mainly cover three technology areas:

  • Trust technologies such as privacy enhancing technologies, AI-based agents and trusted technologies for identities allowing exchanges across multiple 3C networks, providing the users with transparent, auditable, secure, and resilient building blocks and tools across the internet stack.
  • Network and connectivity technologies according to the identified needs of the 3C large scale pilot.
  • Decentralised technologies for an immersive world notably based on open standards ensuring interoperable flow of data and events across the 3C pilot networks and operators.

In order to implement the European vision of next generation digital infrastructures (3Cs networks), applicants should devise appropriate mechanisms for cooperation with the 3C pilot:

  • To ensure the integration of requirements and specifications stemming from the 3C large scale pilots.
  • To ensure the 3C large scale pilot’s swift integration of the building blocks developed by the Open Internet Stack, including envisaging mechanisms for testing and integration of the solutions.

Call Total Budget

€10.00 million

Financing percentage by EU or other bodies / Level of Subsidy or Loan

100%

Expected EU contribution per project: €10.00 million.

Beneficiaries may provide financial support to third parties. The support to third parties can only be provided in the form of grants. The maximum amount to be granted to each third party is €400.000 to allow 1/ cases where a given legal entity may receive several grants (e.g. from different calls) 2/ reaching the maturity level for third party’s project to ensure sustainability with multiple awards.

To support and mobilise internet innovators, a maximum of 70% of the total requested EU contribution could be allocated to financial support to third parties, selected through open calls.

Third parties will be funded through projects typically in the €50.000 to €150.000 range per project, with indicative duration of 9 to 12 months. The consortium should provide the programme logic for the third-party projects, managing the projects lifecycle, and provide the necessary technical and non-technical support: these tasks cannot be implemented using the budget earmarked for the financial support to third parties.

Thematic Categories

  • Information and Communication Technologies
  • Information Technology
  • Research, Technological Development and Innovation

Eligibility for Participation

  • Businesses
  • Educational Institutions
  • Large Enterprises
  • Legal Entities
  • NGOs
  • Other Beneficiaries
  • Private Bodies
  • Researchers/Research Centers/Institutions
  • Semi-governmental organisations
  • Small and Medium Enterprises (SMEs)

Eligibility For Participation Notes

A number of non-EU/non-Associated Countries that are not automatically eligible for funding have made specific provisions for making funding available for their participants in Horizon Europe projects.

If applicants opt for financial support to third parties, they should target calls towards the Open-Source communities actively influencing the course of the Internet. This action is aimed in particular at leveraging the European Open Source communitySMEs, research institutes and individual researchers and developers – with solid experience with development of solutions in line with EU rules and values.

Call Opening Date

10/06/2025

Call Closing Date

02/10/2025

National Contact Point(s)

Research and Innovation Foundation
29a Andrea Michalakopoulou, 1075 Nicosia,
P.B. 23422, 1683 Nicosia
Telephone: +357 22205000
Fax: +357 22205001
Email: support@research.org.cy
Websitehttps://www.research.org.cy/en/

Persons to Contact:

Dr Angelos Ntantos
Scientific Officer
Email: antantos@research.org.cy

Mr. George Christou
Scientific Officer
Email: gchristou@research.org.cy