I built an site that researches SaaS opportunities before you waste months building one
A lot of us have built products that nobody wanted.
The hardest part isn't building anymore it's finding an idea that actually has real demand.
That's why I built Build Signals.
Instead of generating random startup ideas, Build Signals researches markets the way an analyst would. It looks for real signals like:
Regulatory changes creating new markets
Companies actively hiring for a specific problem
New APIs or platform changes
Growing demand from developers and businesses
Weak competitors and underserved niches
Then it produces a complete opportunity report including:
Opportunity score
Market analysis
Competitive landscape
Customer acquisition strategy
Revenue estimates
MVP roadmap
AI coding prompts to build it
Evidence and sources behind every recommendation
Today I even had it publish a fully researched opportunity directly through the Build Signals API.
The goal isn't to replace founders.
It's to help founders spend their time building things people are actually willing to pay for.
I'd genuinely love feedback from other makers:
Would you trust AI to help choose what to build?
What signals would make an opportunity convincing enough for you to start building?
Happy to answer any questions or hear feature requests.
Replies
One thing I am still working through is where founders draw the line between an interesting idea and one they would actually commit months to building.
For me, it becomes actionable when I can identify a specific buyer, repeated pain, evidence that money is already being spent around the problem, and a realistic seven-day validation test.
What evidence would you need before deciding an opportunity was worth building?