LeadRex is the lead generation one-stop shop platform for launching effective online advertising campaigns and realizing digital marketing strategy in extremely quick time, providing quality lead generation by Artificial Intelligence. LeadRex platform is a complex system that includes many components integrated into a single ecosystem - module of digital advertising services, database of statistics and analytics, artificial intelligence, CRM system, blockchain technology and smart contracts. Visionary value of the project for the industry of online marketing and advertising is the progressive development of lead conversion and increase online sales for the B2B and B2C