One x402 service rotated its pay address 964 times in 10 days. I measured 90 days of the drift feed.

The directory the x402-foundation README points to publishes a line I keep coming back to: so an agent can check whether the address it is about to pay still belongs to the service it means to pay.

Good advice. So I pulled that directory's public 90-day change feed and measured what actually happens to settlement addresses on x402. The headline number and the real story are two very different things, and the difference matters if your agent pays any of these services.

What's in the feed

Ninety days, 630 listed services (their daily-updated llms.txt, as of 09-06), 8,000+ recorded changes:

6,183 schema changes — quiet background noise, endpoints reshuffling their payloads