Providing online non-downloadable software providing a blockchain protocol that enables on-chain messaging, notifications, chats, and messages featuring smart contract blockchain technology; providing online non-downloadable software, namely, open source protocol that enables on-chain messaging between crypto-wallets and integrates notifications and chats for on-chain decentralized applications (dApps); providing online non-downloadable software, namely, software that allows for web3 notifications and wallet-to-wallet chat; application service provider featuring application programming interface (API) software for extracting on-chain data, analyzing data from on-chain resources, and transforming data into customized and targeted web3 notifications and messages; providing temporary use of on-line non-downloadable software development tools; Providing temporary use of online non-downloadable open-source toolkit software for enabling on-chain messaging, monitoring of on-chain resources, and enabling notifications and chats in decentralized applications (dApps);providing temporary use of online non-downloadable open-source toolkit software for integrating e-mail and SMS notifications with data extracted from on-chain data