Say it on-chain.
One inbox across eight chains. Message any wallet address, from your own wallet. Free app — you pay only the network fee.
How it works
Connect
Your own wallet — MetaMask, Rabby, Coinbase Wallet, Trust, Phantom, Solflare. KŌINIchat never holds keys or funds.
Write
A plain-text message, up to 2,000 bytes, to any wallet address — or a name like yourname.eth.
Sign
See the network fee up front, then sign in your wallet. The fee goes to the network — never to us.
It's on-chain
Delivered as a permanent public record. The recipient reads it in their KŌINIchat inbox.
A messenger, not a megaphone.
KŌINIchat is pure on-chain messaging. No accounts, no servers, no tracking — your messages live on the blockchain itself. That means every message is public and permanent: it cannot be edited or deleted, by you or by us. Say only what you'd carve in stone.