AdEx (ADX), short for Advertising Exchange, is a blockchain-based platform designed to revolutionize online advertising by leveraging the transparency and security of blockchain technology. Launched in 2017, AdEx aims to address inefficiencies in the digital advertising industry, such as fraud, privacy challenges, and lack of transparency. The AdEx Network offers a decentralised ad exchange that connects advertisers and publishers directly, eliminating intermediaries, thus enabling more cost-effective and target-driven advertising campaigns. By employing Ethereum smart contracts, AdEx ensures efficient ad bidding and payment processes, ensuring all parties receive fair compensation. The native token, ADX, is used for transactions within the ecosystem, including payments, staking, and rewarding participants. AdEx's commitment to improving transparency and reducing ad fraud positions it as an innovative solution for the advertising sector.