Certo – An open source platform to deliver Open Badges
Certo is open-source infrastructure for issuing, managing, verifying, and exchanging digital credentials. It implements Open Badges 3.0[1] and W3C Verifiable Credentials[2] which are the open standards that make credentials portable, machine-verifiable, and vendor-independent. It is designed to be: - Self-hosted: run it inside your own infrastructure, air-gapped network, or sovereign cloud - Standards-compliant: credentials it issues work with any OB3/VC-compatible system - API-first: everything the UI can do, the API can do - Exportable: your data is always yours, in open formats -…
In plain words
Certo is an open-source platform for issuing, managing, and verifying digital credentials using Open Badges 3.0 and W3C Verifiable Credentials standards. It enables course organizers, workshops, and conferences to create portable, machine-verifiable certifications that work across compatible systems. The platform can be self-hosted on private infrastructure, offers an API-first design, and keeps data exportable in open formats.
written from the facts on this page · September 2026
From the sources
An open source project for courses, workshops and conferences organizers to create certifications using Open Badges 3.0 - Schroedinger-Hat/certo
In the maker’s words, at launch
Certo is open-source infrastructure for issuing, managing, verifying, and exchanging digital credentials. It implements Open Badges 3.0[1] and W3C Verifiable Credentials[2] which are the open standards that make credentials portable, machine-verifiable, and vendor-independent. It is designed to be: - Self-hosted: run it inside your own infrastructure, air-gapped network, or sovereign cloud - Standards-compliant: credentials it issues work with any OB3/VC-compatible system - API-first: everything the UI can do, the API can do - Exportable: your data is always yours, in open formats - Extensible: a small, stable core with a plugin interface for everything else A demo is available at https://certo.schroedinger-hat.org/ which we're using for Schrödinger Hat[3] conferences, workshops, partner communities. I'll be around if you have any questions. Feel free to give a feedback on the project. [1] https://www.imsglobal.org/spec/ob/v3p0 [2] https://www.w3.org/TR/vc-data-model/ [3] https://schroedinger-hat.org/
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