
Signalstac — Browse. Score. Reply.
AI agent that browses developer communities, scores relevant posts, and drafts replies in your voice.
@snipextt · X
i'm building to solve build products fast and also to build presence fast :)
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AI agent that browses developer communities, scores relevant posts, and drafts replies in your voice.
@snipextt · X
i'm building to solve build products fast and also to build presence fast :)

Explore Y Combinator companies and receive an AI analysis of your startup idea's fit with the accelerator.
sirily11 · HN
Application Signal – AI That Evaluates Your YC Startup Idea

See who AI recommends, why competitors win, what to change next, and whether it worked. Run a free AEO scan with live answer evidence.
@bransburyx · X

Analyze predicted human attention on designs with ML heatmaps and overlays.
u/dimabreezy · Reddit
Hey, I built a tech that predicts human attention (it's Machine Learning + Data project). I've being using it for the past 2 months and it gives amazing results to AI agents I'm a software engineer and I also love good visuals. And I hate when AI build UI but it doesn't understand what should be GRABBING the attention, so I've build a tech that solves that https://attentionproof.com/ Here you can sign in with the ChatGPT account and get free 2 tries (I got limited compute) so please g

Daily puzzle game where you spot errors in AI-written code snippets and track your score.
@MinnerAlgo · X
spun this app up yesterday. it’s like wordle (everyone has same problem to solve each day) for battling vibe coding brain rot. y'all still got it or are you cooked already?

Trading signals for the AI & Robotics sector with published track record.
@TradingResXYZ · X
Material catalyst events scored by our research pipeline — every call logged on issue, auto-closed on its holding period, and benchmarked against the sector ETF. The track record is the pitch.

Test startup ideas against AI personas to receive validation feedback in minutes.
@gaurangbuilds · X

Free website security scanner checking SSL, headers, and compliance for instant trust scores and AI-guided fixes.
@MrPenetratorTP · X
MrPenetrator helps businesses monitor their website’s trust, security and performance before problems affect their visitors.

Vote on product features and see the public roadmap.
u/kaneki0dd · Reddit
Built SignalBoard a $15/mo Canny alternative for feature voting & roadmaps Been building this because Canny charges $79/mo for something that should be simple: let users vote on features, show a public roadmap, ship a changelog. https://preview.redd.it/h2x588h0n8dh1.png?width=1200&format=png&auto=webp&s=c5a4e15c59008ee67b495b7c35e1350d314e257b What it does: Feature voting — verify once, vote with one click after that AI duplicate detection — catches near-identical

AI scans competitors and market data to validate if a startup idea is worth building in 90 seconds.
@Ebrahim_Rio · X
Most founders skip validation and pray. I automated the "worth building?" check. AI scans competitors, Reddit, and market data → Cook or Kill in 90 seconds. Killed? It surfaces the pivot the data actually backs.

Train software skills by practicing algorithms with AI agents that build and test code.
u/Death12th · Reddit
Free consumer product, seat-based education product, enterprise assessment product. Same codebase. Is this survivable? Three motions off one core. Students practice free and generate cost, not revenue. Educators pay per seat. Hiring teams are the expensive product and the reason any of it matters. The free tier feeds both paid ones and that's the only thing justifying it. Education is slow, cheap, sticky. Hiring is faster, pricier, and churns the second the role gets filled. Billing got

Vote on real-time polls and analyze results by demographic to see how opinions shift.
dgerken · HN
I rebuilt my 2000s polling site with an AI running the editorial desk