EtherPK Sync Server
Your encrypted knowledge, synced on infrastructure you control.
This open-source service is the EtherPK data plane. It handles encrypted sync, graph access and account recovery material without taking ownership of your notes.
Encrypted data plane
Stores encrypted graph updates, snapshots and assets without needing the keys to read them.
Independent accounts
Run local email, passkey, MFA and optional social sign-in, or delegate login to your own OIDC issuer.
Your policy
Choose unlimited self-hosting, fixed operator limits, or a signed remote Entitlement provider.