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Startup ideas with revenue receipts, reverse-engineered from founder interviews.

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TierT1T2T3EvidenceVerifiedFounderCreatorUnprovenEvergreenWindow
Directory Site ↓
AI ContentAI E-commerceAI ServiceAI WebsiteConsumer AppDigital PublishingDirectory SiteEcosystem ToolPlatform PluginSaaSScale ReferenceSimple Tool⚠️ Cautionary Tale
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RevenueIdeaCategory · Evidence · Difficulty
#1
$2K-$10K/moT3
AI Directory Site (Claude Code + Crawl4AI)
Use Claude Code + an open-source crawler to bulk-scrape and clean data in obscure high-ticket industries, stand up a directory site in 4 days that keeps pulling SEO traffic, and monetize by selling the inquiry leads
Directory SiteT3
Directory Site
#2
~$17KT3
TrustMRR, an Acquisition Marketplace for Indie Startups (TrustMRR by Marc Lou)

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A small startup buy-and-sell marketplace built in 8 hours, iterated on user demand, pushed to nearly $20K MRR on a 3% deal fee plus paid featured listings
Directory SiteT3
Directory Site
#3
1.1M organic v…T3
GasBuddy Crowdsourced Fuel Price Directory
Crowdsource real-time fuel price data nobody else can get, drive UGC with a leaderboard, then monetize with a membership debit card
Directory SiteT3
Directory Site