"Free PostgreSQL Database Solutions" matching MCP connectors:

Validate startup ideas with behavioral evidence — not opinion. Demand Discovery AI™ is a sales-agent MCP that answers founders' questions about the validation framework, the four data-signal categories (Search & attention, Conversation & pain, Adoption & spend, Capital & hiring), the Demand Score™, and the Build/Pivot/Kill verdict™. Includes 7 tools: ask a free-form question, get the validation framework, get product details, explain demand signals, compare validation approaches, get data-source

Turn raw customer feedback into evidence-cited specs (free, no key) plus 16 PM tools.

Venture Insights' free Concept Diagnostic, requested by an AI assistant for a founder.

Official AI agent for Stuart Innovations. Real-time project scoping, tech-stack advisory, and UK-based development capacity for Web, Mobile, and AI solutions

PRD, logo, and AI UI mockups from any app idea — PRD free, logo 1 credit, screens 1 credit each.