CooperBuild AI is construction software for small to mid-size general contractors that runs estimating, submittals, pay applications, CRM, vendor quotes and bid comparison, and AI agents in one workspace. When a proposal is approved, its deliverables, tasks and cost lines carry into the project, and the estimate becomes the project's cost baseline. Pay applications produce a G702/G703-style summary and continuation sheet. An MCP server, included on every plan, gives signed-in AI clients 300+ tools scoped to each user's role and plan. Web, iOS and Android apps are available.