João Romo 🌐

a trabalhar em ideias novas

@aleciffo @polymarket_data What is the probability of this going to the moon?

A few months ago I launched @polymarket_data. Started as a fun side project, hit $10K MRR one month from launch, now growing steadily. Since I want to try this build in public thing, here's the full story so far. Last summer I started playing around with algorithmic trading strategies on Polymarket. Automated trading is a research-heavy process: you have a hypothesis for a strategy, you backtest it on past data to analyze its performance and then if you're confident enough you start using it to trade live. Therefore historical data is key. So I started looking for paid providers for historical Polymarket data, but to my surprise I could find none at the time. Polymarket has an official API, but it doesn't provide historical data for resolved markets. It also doesn't provide historical order books data, which was crucial for the strategies I wanted to test. Since data is what I do, I rolled up my sleeves and started collecting and processing the data myself. This seemed promising also from a business perspective, since I found a combination of something that I needed and would have happily paid for, but that didn't exist yet. (On top of that at the time I was looking for an excuse to use @ClickHouseDB on a larger project and this looked like the perfect use case. I'm a huge Clickhouse fanboy now). So I set up the database, data pipelines and monitoring stack. After a short period of testing, everything was running smoothly and the database size was growing fast. In the meantime I asked my co-founder @joaoromo_ if he wanted to give this a shot. From that moment we spent most of our nights and weekends working on this together. A few months later, in January 2026, the size of the database had reached >10TB. So we thought this was starting to get interesting enough to potentially sell access to the data. So we built a very simple landing page. The page explained what data we provided, what pain points we solved and it had a form through which customers could give more info about themselves and request access to the data. The goal at this stage was just validating the idea. Starting from the very next day people started reaching out asking to buy data. We closed multiple sales that same week, of which some worth a few thousands bucks. The idea had been validated. At that point we still had no API, but just provided data through exports on S3. This was a major bottleneck, as each export required negotiating with the customer and then doing custom work to prepare the data and serve it. So we started building the API to serve the data at scale, while still providing bulk exports for bigger customers. At the end of February we launched the API. We reached $10K MRR one month after launch and now we are growing steadily. We did all this as a 2-person team. I believe one of our main strengths was that we used AI agents since day one to automate as much as possible of business operations (things like support, sales, marketing, SEO and so on). In the last 3 months we kept working on PolymarketData every minute of our free time. Trying marketing strategies, new sales channels, maintaining the API and a lot more. There is a lot of stuff I left out in this first post, so if there’s anything you’re curious about let me know

Me telling Cursor "You are a Senior Developer with 15 years of experience":

Tiger Woods’ life summed up

It’s over, boys.

Give them bread and circuses, and they will never revolt.

🔥🔥

newark was promised to the portuguese 3000 years ago

We must go deeper.

BREAKING: Bill Ackman changes his legal name to Bill Abou Ackman

Me at the dinner table waiting to shift the conversation to currency debasement

O Benfica vai mesmo atrás daquela paixoneta da escola passado 25 anos. Ela agora está feia e velha e os últimos 5 relacionamentos que teve foram curtos, andou com eles só pelo dinheiro e acabaram porque ela meteu os cornos, mas agora vai ser diferente.

“Facelift” é o primeiro álbum dos Alice in Chains e foi lançado neste dia em 1990. Este foi o primeiro álbum do movimento grunge a ganhar disco de ouro nos EUA, tendo depois conquistado a dupla platina.

Imaginem f*der aqui

That’s a dream of each Keynesian economist out there. It is counted twice as GDP growth, once when the buildings are constructed, and then when they are demolished. What a brilliant way to build prosperity.