Protect
Secure by design
End-to-end encryption and user-controlled data.
The universal identityPortable
Portable
identity
for the
atmosphere
One secure account. Sign in anywhere.
Your identity, your data, your control.
Built on AT Protocol.Learn more
Connect
One sign-in, everywhere
Use your identity across every app you sign in to.
Can choose
You're in control
Share only what you choose. Revoke access anytime.
Your Benefits
What you get
One account across apps
Use the same account on every partner platform. No new logins, no juggling profiles.
Your profile travels with you
Your handle, avatar, and history appear automatically when you sign in to a new app.
You stay in control
Export your data or walk away at any time. You're never locked in.
Simple sign-in
No passwords to remember. We email you a one-time code each time you sign in.
Simple Process
How it works
Three steps to a portable identity.
01
Create your Certified ID
Enter your email. We send a one-time code.
02
Sign in to partner apps
Use it anywhere you see 'Sign in with Certified'.
03
Your profile is already there
Your profile and records follow you automatically.
Ecosystem
Works across partner apps
Ma EarthCollective Funding for Regenerating Earth
GainForestCo-creating a fair future for nature stewards
SimocracyDemocratic governance for the digital age
HyperboardsVisualizing and recognizing those who create real valueMore apps coming soon.
Our Principles
Built for trust
Open protocol
Built on and for AT Protocol. Anyone can verify how it works, anyone can build on it.
No lock-in
Your identity and data move with you. Switch apps, export everything, or walk away entirely.
Auditable by anyone
Every component is open source. Security through transparency, not obscurity.
Common Questions
Frequently asked questions
Similar idea: one account across apps. The difference is that Certified is designed so you're not locked into one company or one app.
No. Certified works with just your email. No crypto, no wallet, no technical setup required.
On supported platforms, you can connect Certified to an existing account.
Yes. Your data is portable — you can export it or simply stop using the service at any time.
Currently Ma Earth, GainForest, Simocracy, and Hyperboards. More apps are joining over time.
One last thing
Ready when you are.
One identity — every app you sign in to. Takes a minute.
Free forever · No passwords · Walk away anytime