Absolutely! 

About 13M models, over 28 3D formats, and growing every week. On average, Thangs.com users directly upload around 3k to 10k models per week, and then we have a crawler that indexes most of the other major 3D platforms - but those models are only shown in the search results.

On the site, you can filter based on filetype (.blend is one we are working on adding soon), but all the usual culprits from STL to ASM to 3MF, as well as a number of USDZ and GLTF.

Super similar - in fact, Thangs searches Sketchfab's (free) models!

The primary difference is that Thangs search includes many 3D platforms, so it includes over 13M models.

We are huge fans of both Sketchfab and their team.

Great question!

The web search (example query) has file format, free/paid, source site, and other filters.

The add-on does not today, but absolutely would in the future.

That said, there are very, very few paid models in the search index. The overwhelming (eg. 99%) majority are all free models.

Good thought!

At this current point in time, you can only see the license after navigating to the model page on Thangs. This will absolutely be added if the community enjoys it!