All crypto/browser automation/bot detection companies are jumping on the bandwagon:
https://docs.cdp.coinbase.com/x402/core-concepts/http-402
https://docs.browserbase.com/integrations/x402/introduction
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/...
https://docs.datadome.co/docs/monetize-policy
In a world without search engines, LLM chat bots will need to be held to account for the server resources they're using. Seems like a lot of companies are betting on them paying for access or acting as AI shopping agents.