Validation · 2026-06-13

How to Validate a Developer Tool or API Product Using AI

Developers express demand through GitHub issues, Stack Overflow questions, and package download trends. DemandSonar's “DevTool Validator” aggregates these. “API for generating PDFs from HTML” showed 2,400 Stack Overflow questions, 800 GitHub stars for an incomplete open-source alternative, and a clear gap. A founder built a polished version, documented it well, and launched on Hacker News with the demand data in the post. He got 1,000 sign-ups in a week. Developer tool validation lives in developer communities, not Google. [Validate your developer tool →]

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