anonfunction2d ago

Show HN: Is Hormuz open yet?

I built this because I was interested in the data. Didn't fully get it to what I wanted, but thought I'd share it nonetheless. Maybe someone has better data sources they could share!

Turns out live ship tracking APIs are expensive so I manually just copied the json from https://www.marinetraffic.com/en/ais/home/centerx:57.4/cente... I'll probably have an ai agent do the same thing on some cron interval, if this gets any fanfare.

To actually know if the port is open without live ship tracking I found https://portwatch.imf.org/pages/cb5856222a5b4105adc6ee7e880a... which was perfect, except it has 4 day lag!

I also thought of adding news feed parsing or prediction market data to get a more definitive answer on if it's open right when you load it, but I spent a few hours and am gonna move on for now.

https://www.ishormuzopenyet.com/

MarineTraffic: Global Ship Tracking Intelligence | AIS Marine Traffic

MarineTraffic Live Ships Map. Discover information and vessel positions for vessels around the world. Search the MarineTraffic ships database of more than 550000 active and decommissioned vessels. Search for popular ships globally. Find locations of ports and ships using the near Real Time ships map. View vessel details and ship photos.

Show threadJeremy10262d ago
The data being ~4 days delayed does kind of make this less useful. It is a nice concept and cool to see the historical data though. Just think the domain and the large "NO" doesn't really fit with the lack of current data.
Show threadanonfunction

What do you think of adding prediction market data to the indication? So basically there's this:

https://polymarket.com/event/strait-of-hormuz-traffic-return...

My approach would be if that jumps up to 75%+ it would change to YES. And if we get into May they have one for then too:

https://polymarket.com/event/strait-of-hormuz-traffic-return...

You can actually see in the last 24 hours it jumped up with the ceasefire and Iran saying they would open it and fell back with reports it's been shut down again easlier today.

Edit: I added this, I can see a few downvotes, happy to discuss here or in the github repo if anyone has strong feelings on it!

Strait of Hormuz traffic returns to normal by end of April?

$5,039,390 has traded on "Strait of Hormuz traffic returns to no..." as of April 9, 2026. View real-time odds or trade on The World's Largest Prediction Mark...

Polymarket
Apr 8 at 11:33pmWeb
Show threadkillingtime742d ago
i didnt downvote you but why wouldn't i just go to Polymarket directly for this
Show threadanonfunction2d ago
I mean you obviously could, the url is a little harder to remember and it doesn't have crossing data. This was just a small fun project I did, so you're free to do whatever you like. The reason I thought of using polymarket data is I didn't have live ship tracking data which is what I originally intended to use.