Keychat is a decentralized super app built on the Nostr protocol and Bitcoin Lightning Network that combines sovereign identity, a Bitcoin wallet, secure end-to-end encrypted chat, and Mini Apps. It requires no phone number, email, or registration—users generate Nostr keys as their identity. It serves both humans (private messaging and Bitcoin payments) and AI agents, which can connect via the OpenClaw plugin.
What it's for
Private end-to-end encrypted messagingSending and receiving Bitcoin/Lightning payments in chatLogging into Mini Apps with a public key ID and paying with BitcoinAI agents communicating with humans and other agents via OpenClaw pluginSending pay-per-message ecash stamps to paid relays
Features 16
- AI agent connectivity via OpenClaw plugin
- Built-in Bitcoin ecash wallet
- Built-in Lightning wallet
- Choice of free or paid Nostr relays, including self-hosted
- Interoperable open protocol with other Keychat-protocol apps
- Mini Apps: public key login plus Bitcoin payment
- MLS Protocol encryption for group chats
- New encryption key generated per message
- No metadata leakage, no tracking
- No registration, phone number, or email required
- Open source under AGPL-3.0
- Pay-per-Message ecash stamps for paid relays
- Rotating sending/receiving addresses for privacy
- Signal Protocol encryption for 1:1 chats
- Signed releases verifiable via PGP key
- Sovereign Identity with multiple public key identities
Pricing
Keychat itself is free (0 USD). Sending messages to paid Nostr relays automatically carries an ecash 'sat stamp' when the wallet has funds, but the specific rate is not publicly disclosed.
FreeFree
App itself is free and open source; paid Nostr relays may require ecash stamps per message, but no specific rate is stated.
Similar apps
0xchatOpen sourceSecure. Private. Decentralized.PriceNot statedTry free—Runs oniOS · AndroidFeatures18
ADAMANT MessengerOpen sourceAnonymous ⋅ Secure ⋅ Unstoppable ⋅ Crypto Wallets ⋅ Open-source ⋅ Community-drivenPriceNot statedTry free—Runs onWeb · Windows +4Features21
StatusOpen sourcePrivate, secure by design. Transact, Message, Browse on your Terms.PriceFreeTry freeFree planRuns onWeb · Windows +4Features16
White NoiseOpen sourceA secure and private messenger that's lightning fast, scalable, and identity-free.PriceFreeTry freeFree planRuns oniOS · AndroidFeatures14
SimpleX ChatOpen sourcePrivate and secure messenger without any user IDs (not even random)PriceNot statedTry free—Runs onAndroid · iOSFeatures17
Delta ChatOpen sourceDecentralized secure messengerPriceNot statedTry free—Runs on—Features8