Web 3.0 iterates the third generation of Internet services that aims to understand and analyze data to provide a semantic web. It enables data sharing across multiple systems, platforms, and community boundaries, linking various data formats and media. The Data Access Protocol (DAP) is an open standard that makes remote data accessible to clients, including web browsers, that support its lightweight HTTP-based protocol. It is a system that grants outsiders access to databases without overloading the system. Requirements Of A Web 3.0 DAP Volumes of data and new content to be managed are created and increase every day. Data access technologies such as databases, search engines, or query APIs are so ubiquitous that they are barely considered when architecting software solutions. As Web 3.0, blockchain-powered, decentralized applications evolve, infrastructure blocks such as data access will become more regarded in solution architecture. A well-defined Web 3.0 data access protocol has to meet specific capabilities: 1. Data Access In Web 3.0, there is a higher level of information connection facilitated by semantic metadata. As a result, the user experience evolves into a new level of connectivity that leverages all available information. Internet content and services can be accessed anywhere via devices rather than exclusively via computers and smartphones. Web 2.0 is already universal in many ways, but the development of IoT devi...