
Email Verification API | Real-Time Validation for Developers | MailValid
Email verification API with real-time validation via syntax, domain, MX, and SMTP checks.
@sachinbapure · X
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Email verification API with real-time validation via syntax, domain, MX, and SMTP checks.
@sachinbapure · X

Upload datasets to automatically find statistically significant correlations and causal relationships.
@matthew_meadows · X
Correlation Studio - Discovery Mining • Causation Analysis A powerful new SaaS statistics application that brings the insights of correlation data science to everyone. Data science without the code.

Monitor competitor mentions and customer feedback across X, Reddit, Hacker News, and Dev.to.
@arush_shar17296 · X

Verify agent identity and authority with FLINT's reputation layer for the agentic economy.
@RealADVON · X

Encrypted decentralized storage with S3-compatible API and TypeScript SDK
@Regan_Obsideo · X
Obsideo — the storage layer for privacy-first apps. If your product tells users 'we can't see your stuff,' your storage backend shouldn't be able to either. Ours can't. S3-compatible, pay per terabyte-day.

Accept crypto donations from viewers during YouTube and Twitch livestreams.
@evan_livesats · X
Building liveSats — crypto donations for streamers Creator economy, not dev tools: QR on stream → viewer tips USDC/ETH → message on your overlay. YouTube + Twitch. Connect, enable donations, go live.

Create ready-to-post social media copy and image ads customized to your brand and audience.
creature_x · HN
I’m building Feral, an AI agent that learns your business and audience, then creates content that actually resonates with your people. I built it because I’m terrible at content creation and had a graveyard of under-promoted apps that never went anywhere. I know showing up consistently on socials matters, but I also have a strong aversion to AI slop, so I’ve spent a lot of time and money making the output feel less sloppy. If you're interested, check it out here: https://feralhq.com

Automate Telegram community paywalls with Stripe integration to accept recurring payments.
@Unloqqq · X
I still hope that helps

Automatically hide toxic comments and detect spam on Instagram.
@DevKhandelwal84 · X
Built SocialFuse because creators and brands deserve better comment moderation. ✅ Filter spam ✅ Remove toxicity ✅ Stay focused on growth Try it:

AI-powered debate arena where you compete and receive skill ratings for your argumentation.
u/Bakari2Sense · Reddit
Built a persistent skill rating for debate, like a chess rating but for argumentation I built a persistent skill profile for debate called the Debate Fingerprint. Would love feedback. [Founder disclosure: I'm Bakari, building 2Sense at app.2sense.ai] The idea: every debate you complete scores you across 6 dimensions (Logic, Structure, Responsiveness, Persuasion, Emotional Control, Clarity) on a 0-1000 scale. The scores persist across all your debates and build a visual profile over time

Log your habits and share a public link to get accountability from others
@ericbuildsio · X
Fix your habits with public accountability @publichabits

Collect and showcase customer testimonials to build social proof for your business
@PriyankaSaini28 · X
Hey Building the all-in-one Social Proof system for founders. Turn customer voices into testimonials, reviews & insights that convert - @getfeedspace Auto-collection + Wall of Love widgets.