Private messaging, built on BitcoinIn testing
No phone number. No signup. Just an inbox that’s actually yours.
Sign in with email, Google, GitHub or a Bitcoin wallet. Your account becomes a private inbox.
How it works
Three steps. One tap. No account.
- 01
Sign in
Email, Google, GitHub or a Bitcoin wallet. No password, no phone. - 02
Your address is your inbox
Share it like a username. No directory to hack or shut down. - 03
Only you can read it
Messages open on your devices alone. Not ours. Not anyone’s.
Three ways to send
Three ways to send. Two no other app can.
- 01
speak-now
Everyday messages, free. Like any chat app, minus the phone number. - 02
pay-to-reach
Charge strangers a small fee to reach you. The sats go to you, not us. - 03
seal-til-block
Write now, opens later: locked until a future point on Bitcoin’s clock.
Do I need to own bitcoin?
No. Chatting is free, and an email code is enough to sign in.
Can you read my messages?
Never. They’re encrypted on your device — we see only scrambled text.
Will you touch my coins?
No. OC Chat never holds your coins. Postage a stranger pays you goes straight to your own wallet.
How is this different from Signal?
Your identity is a Bitcoin address, not a phone number. Nothing to phish or reset.
Your address is your inbox. Your wallet is your sign-in. The chain is your clock.
No phone. No account. OC Chat never holds your coins. Free to start, and yours to keep.
With thanks to Bram Kanstein (opens in a new tab), whose work on Bitcoin as a sovereignty layer shaped the premise.