Zypp Protocol is the first offline first crypto payment protocol powered by Solana.
It enables users to send and receive tokens, NFTs, or identity data without internet connectivity using Bluetooth, NFC, or proximity based peer discovery.
With Zypp, users can transact, gift, and exchange assets seamlessly in real world offline environments. Once back online, all transactions automatically sync securely to Solana.
Zypp redefines peer to peer finance by enabling true offline crypto interactions.
It combines proximity technology with on chain synchronization to make Solana accessible anywhere even when there is no Wi Fi or mobile data.
Whether at a concert, in remote regions, or during network downtime, Zypp ensures that DeFi remains uninterrupted.
Offline Transactions
Send and receive assets using Bluetooth or NFC without an internet connection.
Proximity Drops
Instant value transfers between nearby devices using secure discovery mechanisms.
Gesture Based UX
Perform transactions with simple motions such as shake to send or swipe to accept.
End to End Encryption
Every transaction is locally encrypted, ensuring privacy and security in offline mode.
Auto Sync to Solana
All offline activity automatically syncs to the blockchain once the device reconnects to the internet.
Developer SDK
An open SDK for Solana developers to integrate offline transaction capabilities into their own apps and wallets.
Crypto payments rely heavily on constant internet access.
In regions or scenarios where connectivity fails, financial systems stop functioning.
Zypp eliminates this limitation by creating a resilient decentralized layer for offline value transfer.
This unlocks a world of new use cases such as emergency payments, festival drops, local trading, or private peer exchanges.
Zypp uses a hybrid model combining local device communication and Solana’s high speed transaction layer.
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Offline Layer
Built with Bluetooth Low Energy, NFC, and encrypted local message queues. -
Storage Layer
Local caching with Realm and MMKV ensures fast access and transaction history retention. -
Sync Layer
Once connected to the internet, queued transactions are verified and pushed to Solana using the@solana/web3.jsSDK. -
Developer Integration Layer
SDK hooks and APIs allow wallets, merchants, and dApps to embed offline functionality.
Zypp prioritizes user privacy and encryption. Offline transactions are
- Signed locally with cryptographic keys
- Stored securely until confirmation
- Verified through end to end encryption
No data is ever transmitted in plaintext, ensuring anonymity and security even in peer to peer environments.
Q4 2025
Launch of public testnet and developer SDK.
Community expansion and ecosystem partnerships.
Q1 2026
Integration with Solana ecosystem wallets and mobile first dApps.
Advanced privacy features and gesture UX improvements.
Q2 2026
Mainnet launch with open source SDK release.
Beta rollout to merchants and offline payment partners.
Q3 2026
Exploration of global offline crypto use cases and institutional adoption.
Framework: React Native and Expo
Blockchain: Solana
Libraries: @solana/web3.js, @solana-mobile/mobile-wallet-adapter, tweetnacl, react-native-ble-plx, react-native-nfc-manager, react-native-mmkv, realm, axios, zustand
Storage: Realm DB, MMKV
Encryption: TweetNaCl, CryptoJS
UI: React Native Reanimated, Tailwind
Joshua Idele
Founder and Lead Developer
Blockchain and Solana developer passionate about building real world crypto utilities and seamless mobile experiences.
Supported by early contributors and open source collaborators from the Solana ecosystem.
Website: zypp.fun
Twitter X: @use_zypp
Email: contact@zypp.fun
Join the waitlist or contribute to the open source SDK to help build the future of offline DeFi.
Zypp Protocol is licensed under the Apache 2.0 License.
You are free to use, modify, and distribute under open source terms.