I vibe-coded $330K in 9 months

Nine months ago, TrustMRR did not exist.

Today, it has made just over $300,000 in revenue, plus around $30,000 in acquisition fees. It gets about 200,000 visitors a month. And 154 founders have been acquired through it.

I spent the next nine months trying games, new pages, small tools, and a marketplace.

This is what happened between the first prompt and $330K.

Chapter 1 — The Launch

On October 28, 2025, Pieter Levels posted about fake MRR screenshots.

I woke up the next morning still thinking about it. I share my own revenue publicly, and I care about trust.

So I opened Cursor and asked it to build a place where founders could verify their revenue with a read-only Stripe key.

Six hours later, I had a leaderboard with two columns: total revenue and MRR.

I launched it on October 30. The post reached 2.9M views.

I had no plan to make money. I added a few ad spots on the side and priced them at $299/month. As the tweet grew, I increased the price to $699, $999, then $1,499 per month.

Within three days, every spot was sold. TrustMRR had made $20,378.

I had never built something this fast that made this much money.

Chapter 2 — Dying Hype

The launch traffic started falling a few days later.

Traffic fell from 146,810 visitors in November to 91,415 in December.

After checking the leaderboard, there was nothing else to do. So I tried around 10+ different ideas to keep it alive.

I made a game where people guessed which startup made more money. The post got 339,000 views. I added categories, founder pages, maps, charts, emails, new payment providers, and small tools like Tinder MRR.

Nobody really cared, and the traffic dropped by 38% in December.

Then a founder asked if he could list his startup for sale.

Chapter 3 — Winner Bet

On November 30, I added a small marketplace. At first, it was almost the same board, but buyers could now see a price and contact the founder.

Five days later, the first startup was acquired!

I posted it on December 5. I was happier than when I sold a sponsor spot. The money was not going to me. A founder had sold something because of a tiny button I had added five days before.

I kept going. I built an inbox, chat, file sharing, NDAs, letters of intent, purchase agreements, and Escrow inside the dashboard.

On January 15, I added a 3% finder fee.

Two weeks later, a startup sold for $85,000. The marketplace was 45 days old. I couldn’t believe it!

Chapter 4 — The $1.2M Offer

Around the same time, someone offered to buy TrustMRR for $1M.

I asked for more. A few weeks later, the offer reached $1.2M.

I would have to stay for a few months. I had worked for myself for more than eight years. The idea of selling my own thing, then becoming an employee of it, felt strange.

At the time, about 30 startups were being listed each day, 10 times more than at launch. There was about one acquisition a day.

So I passed on the offer.

Then I went back to adding features.

Chapter 5 — Dying Hype (again)

I kept working on the marketplace, but TrustMRR still had bad months.

In March, TrustMRR made $31,834 and had 180,942 visitors. In April, traffic fell 35% to 118,300. By May, revenue was down to $23,695.

I spent the next months changing the startup pages. I added screenshots, tech stacks, channels, GitHub data, traffic, better revenue charts, embeds, and one-click revenue images.

I tried to make every feature clickbait. Useful and sexy, so users would use and share them. In the end, most traffic comes from word of mouth.

By February, Google had indexed more than 5,000 startup pages. By March, TrustMRR had reached 1M Google impressions.

In June, traffic was back to 178,270 visitors.

Chapter 6 — All-time High

July 2026 became the best month.

TrustMRR hit $44,000 for the month, with a 90% margin. 23 founders were acquired in those 31 days.

Here are some stats so far:

• $301,198 in gross product revenue

• ~$30,000 in acquisition fees

• 154 founders acquired

• 56,174 registered buyers

The original board now has 9,645 active startup pages. 2,095 are listed for sale. Together, the database covers more than $1.55B in verified revenue across 54M transactions.

When I launched the MVP, I thought it would be yet another failed project.

Ship fast, ship often, and don’t quit!

— Marc Lou

PS. I built Stalkr.AI to get feature ideas for TrustMRR and just got my first customer!