Hey HN,

I built LeadSynth AI after realizing cold outreach is broken. 0.5% response rates, spam filters, burned domains—it's a mess.

The shift: Instead of interrupting strangers, find people already asking for help.

How it works:

Monitors Reddit, X, LinkedIn 24/7 for buying signals

Detects intent ("looking for," "need help with," "recommendations")

AI agents engage with contextual replies automatically

Starts warm conversations while you sleep

The results:

40% response rate vs 0.5% for cold email 230+ users in 3 months Zero ad spend (the product sells itself) Users sign up at 3am because agents never sleep

Example:

Someone posts "best tool for B2B lead gen?" at 2am → Agent replies by 2:15am with value → They sign up by morning.

Not cold outreach. Warm engagement at the right moment.

Built for: Founders tired of manual prospecting who want outcomes, not more tools to manage.

Check it out: https://leadsynthai.app

Happy to answer questions about the tech stack, intent detection, or how we avoid being spammy.