Musubi

Your social graph,
your control.

Musubi decouples your identity and relationships from the apps that use them. Own your connections, set your rules once, and switch on only the apps you want — they never get to keep your graph. Built on OSN, the open social network.

Get startedExplore the ecosystem

Why Musubi

The graph is yours. The apps are guests.

On most platforms, the company owns your connections — and every app you touch tries to rebuild that web from scratch, then keep it. Your relationships end up scattered, duplicated, and locked inside products you can’t leave.

Musubi flips that. Your identity and your social graph live with you. Apps opt in to the slice you grant them and nothing more. Block someone once and it propagates everywhere — unless you decide otherwise.

What you get

Built around you, not your data.

  • Own your social graph

    Connections, close friends and blocks live with your identity, not an app. Block someone once and it applies everywhere — unless you choose otherwise.

  • One identity, many profiles

    A single login, multiple public handles. Keep work, friends and the things you love in separate profiles — all under one account you control.

  • Apps opt in, and out

    Each capability is a standalone app. Switch on events or messaging when you want them; turn them off and your graph is untouched.

  • Privacy by design

    End-to-end encrypted messaging over the Signal protocol, granular visibility controls, and hidden-attendance options for events.

  • Passwordless and secure

    Passkey-only sign-in (WebAuthn / FIDO2), recovery codes for lost devices, per-device session management and step-up auth for sensitive actions.

  • Data you can see

    All personalisation data is accessible to you and resettable at any time. No black-box profiles built behind your back.

How it works

Three steps to a social life you own.

  1. 01

    Own your identity

    Create one account with a passkey — no passwords. It becomes your OIDC identity across the whole ecosystem, with recovery codes and per-device sessions you control.

  2. 02

    Build your connections

    Add connections and close friends, set visibility, block who you want. Your social graph lives here — portable, consistent, and yours.

  3. 03

    Switch on the apps you want

    Opt into Pulse for events or Zap for secure messaging — each independently. They read only the slice of your graph you grant, and never keep it.

The ecosystem

One graph. Many apps. All opt-in.

Each app stands alone and connects to your Musubi identity independently. Use what you want, ignore what you don’t — your social graph stays the same underneath.

Events

Pulse

Discover what’s happening near you, RSVP, and run your own events — with venue pages, group chats, calendar export and hidden-attendance options for private gatherings.

Messaging

Zap

Playful, end-to-end encrypted messaging over the Signal protocol — DMs, groups and event chats — that doubles as the ecosystem’s identity-aware support and announcements channel.

Wedding invites

Cire

Bespoke digital wedding invitations: guests open a link and RSVP with no account, while every reply is tracked for the couple. Built on OSN, usable on its own.

What we stand on

Principles, not promises.

Modularity
Each capability — events, messaging, social — is a standalone app. Use what you want, ignore what you don’t.
Data transparency
All personalisation data is accessible to you and can be reset at any time. No hidden profiles.
Privacy by design
End-to-end encryption for messaging, granular visibility controls, and hidden-attendance options throughout.
Open standards
An OAuth / OIDC provider for third-party integrations, with self-hosting planned for enterprise use.

Questions

Everything you might be wondering.

What is Musubi?

Musubi is an open, modular social platform. It separates your identity and social graph from the apps that use them, so you own your connections and decide which apps get access — instead of each app owning a copy of your social life.

What is the difference between Musubi and OSN?

OSN — the Open Social Network — is the underlying system: the identity, social graph and authorisation layer, plus the standards apps use to talk to it. Musubi is our implementation of it, and the one you sign up to here. Anyone can run their own OSN for a private social graph; Musubi is to OSN roughly what Mastodon is to the fediverse.

Do I need to use every app?

No. Each app — events (Pulse), messaging (Zap), and others — is independent and opt-in. Turn on what you want, leave the rest. Your identity and graph stay the same underneath.

Who controls my data?

You do. Your social graph lives with your identity, all personalisation data is accessible and resettable, and apps only see the slice you grant them. We don’t sell your data or use it for third-party advertising.

Is it open source?

Yes. OSN, the system underneath, is open by design and built on open standards including an OAuth / OIDC provider for third-party integrations. Running your own OSN for a private social graph is the goal; Musubi is the hosted implementation we operate.

How do I sign in?

With a passkey — no passwords. Musubi uses passkey-only primary login (WebAuthn / FIDO2), backed by recovery codes for lost devices, per-device session management, and step-up authentication for sensitive actions.

Take back your social graph

Your network. Your rules.

Create your identity once, keep your connections for good, and bring only the apps you want along for the ride.

Get started Explore the apps