> I do want it to work, so just curious does anyone have any positive anecdotes? Can this naturally get picked up by crawlers?

Eeh, have you find any crawler software that actually supports that protocol? I've seen lots of websites implementing support for it, but do people really implement support for a protocol before they see user-agents who could technically use it? If you're seen those user-agents, which ones are they?

I see Claude-User the most, but I was a bit unclear how likely it is it's ever hooked up to USDC. Contemplating getting a quick Claude subscription to test but also loath to give them any money.