This document describes Antropolis, a web-based project to connect citizens, contractors, and authorities to build what people need in cities. A survey found that 95% of citizens are dissatisfied with government activity and 90% would use an internet service to impact city development. Antropolis is a simple online tool with maps and boards for citizens to post needs, contractors to propose solutions, and authorities to share plans. It aims to help governments understand citizen needs and allocate budgets accordingly. The business model involves paid membership for city contractors to post commercial offers.