The Eureka Database is a startup idea database built by Jeremy Galang that mines 📝Reddit and other public forums for repeating complaints, then researches each one into a validated business idea.
The system scans Reddit, Hacker News, App Store reviews, Stack Overflow, X, and GitHub for problems people describe more than once, filters them through automated scoring and human review, and packages each surviving idea with the original source threads, competitors already earning revenue in the space, a market size estimate, and a working demo. Beyond the ideas themselves it provides workspace tooling for task tracking, a co-founder matching feature, and a list of several hundred verified investors. Access is sold as a one-time payment for lifetime membership, with a couple of ideas readable for free.
Its notable technical choice is an 📝Model Context Protocol (MCP) server that loads an idea's specification, design references, and build schemas directly into 📝Claude Code, moving the product from a catalog you browse to a source an agent builds from. Galang has said he built it for himself after repeatedly shipping products to nobody, automating the demand-validation step most builders skip. It launched publicly in 2026.