Web 4.0 architectural framework and Open Internet Stack applications for virtual worlds
Pays three European projects between EUR 2.8 million and EUR 8.4 million each to build an open-source Web 4.0 architecture or decentralised virtual-world applications, with only one winner allowed in the architecture track.
Third-party funding caps differ by area: consortia in the Architectural Framework track can pass up to 70% of their funding to outside open-source contributors, while the Applications track is capped at 20%, both paid out through open calls with a maximum of EUR 300,000 per third party. Money used to run those open calls and support the funded third parties — managing their lifecycle, giving techn…
The Commission wants proposals in one of two areas: a human-centric Web 4.0 architectural framework spanning open hardware, AI agents and immersive applications, or decentralised virtual-world applications such as messaging, app-stores and identity management built on open standards. Proposals must clearly declare which area they address.
Sign up free to see the funding breakdown
Sign up free to see the full eligibility
Sign up free to see how to apply
Sign up free to see what you submit
Sign up free to see the timeline
Sign up free to see where teams trip up
Guides for this application
All guides →Horizon Europe Grants for Startups: A Founder Guide
A practical guide to Horizon Europe grants for startups, including EIC, consortia, eligibility, Funding & Tenders, TRL, budgets, and EU strategy.
DocumentsGrant Work Plan Template: Work Packages, Gantt, Milestones, and Risks
Use this grant work plan template to structure work packages, tasks, owners, deliverables, Gantt timing, dependencies, and risk registers.
DocumentsLetter of Support for Grant Applications: Template and Examples
Learn how to write and request a letter of support for a grant, with template structure, examples, reviewer logic, and common mistakes.
Find grantsGovernment Grants for Startups: What Deeptech Founders Should Know
A practical guide to government grants for startups, including Grants.gov, SBIR/STTR, state programs, eligibility, fit, timelines, and when to apply.
More from European Commission
All grants from this funder →Coordination for Cross-Sector Nuclear Technologies
🇪🇺European Commission · European Union
Funds coordination of European nuclear research platforms across energy, medicine, space, maritime uses and radiation protection.
Euratom Radiation Protection Partnership (PIANOFORTE)
🇪🇺European Commission · European Union
Funds PIANOFORTE’s 2026-27 continuation, an EU radiation-safety research partnership — only for its current members and any partner who joins them.
European Stable Isotopes for Nuclear Medicine
🇪🇺European Commission · European Union
Funds industrial production of stable isotopes needed for radionuclide therapies and a more resilient European medical supply chain.
Horizon Batteries: EV Recycling Pilot with India
🇪🇺European Commission · European Union
Funds a €9.4M lithium-ion battery recycling pilot line in India, matched to a separately funded Indian project on the same schedule.
Horizon Batteries: Sustainable Electrode Materials
🇪🇺European Commission · European Union
Funds four €7.1M projects that make battery electrode materials cleaner to produce — via greener refining or plant-based sourcing instead of mined graphite.
Horizon Buildings: Whole Life Carbon Data Platforms
🇪🇺European Commission · European Union
Funds three €5.25M projects that plug embodied and operational carbon data into building certificates, passports and BIM tools.
Similar grants
Browse the directory →Development of innovative digital products and applications (POCIDIF)
🇷🇴MIPE · Romania
Funds Romanian IT SMEs building AI, IoT, VR or robotics products with €500K-€3M.
Quantum computing applications for large scale impact: CR&D
🇬🇧Innovate UK · United Kingdom
Build quantum software that solves a named industrial problem better than classical methods.
An AI Foundation Toxicology Model and Framework to Support Waiving a Second Species in Drug Safety Studies
🇨🇦IHI JU · European Union
Funds development of an AI toxicology model that lets drug developers waive costly second-species animal safety testing.
Optical wireless communications research and testing facility
🇬🇧EPSRC · United Kingdom
Funding to establish a national optical wireless communications test facility.
RIVCircular Open Call for Innovation Projects
🇪🇸RIVCircular · European Union
Funds circular-economy consortia across eight European regions with grants up to €2 million.
International collaboration EU and Japan on semiconductors
🇪🇺Chips JU · European Union
Pays two EU-Japan semiconductor projects between EUR 3 million and EUR 5 million each to develop advanced chip packaging and standardised chiplet interfaces.