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We have made a tool to enable address-to-address private messaging without spam. An address can define the minimum tip that the other address must send with the message - could be zero also, but at the risk of being scammed. Right now, We have enabled only the text message but we are going to build the functionality for recorded audio/video messages and one-to-one calls, obviously, the minimum tip could be higher in that case.

These interactions build a social reputation for addresses too, which helps other addresses a context before having a conversation. Web3 experts can signup also to create their public profiles so that other users can reach out to them for their queries. Address-to-address messaging can solve the following problems.

• On DeFi protocols, users don’t learn about their loan liquidations until they manually check, since there is no way for users to receive notifications
• Every time a trade order is placed on a DEX, the user is expected to manually check the service or their wallet address to see if the trade is completed or not.
• ENS domain expiry has to be put on Twitter in the hopes that the grace domain user might read it.
• Inform users whenever their governance tokens can be used on important proposals, as well as the status and time left for any active governance proposals.
• Instead of waiting for a tweet, a PoolTogether lottery winner in the future can simply receive their winning lottery via a notification.
• Availability of digital art on a decentralized marketplace or limited edition * * NFTs can be shared with users by simple notification.
• New protocol feature launch can be shared with users

We used the Diamond proxy pattern to implement our smart contracts since we had a lot of functionality to implement. We are using the "The Graph" protocol to listen to the events and using IPFS to store all the encrypted messaging data. We are using Magic protocol to provide custodian wallets to our users along with providing an option to interact with Metamask and Wallet connect.