Idun is an open protocol that bridges verified identity and social identity on the federated web. It defines how platforms issue, share, and verify social trust credentials — built on EUDI Wallet standards, decentralised identifiers, and both ActivityPub and AT Protocol federation. It is protocol-agnostic by design: one identity, any network.
Idun is
An open protocol spec
A vocabulary for social trust
A reference implementation
Forkable and self-hostable
Idun is not
A centralised identity provider
A replacement for eID systems
A social network
A single point of failure