Meta Stack Overflow API Try-It form sends request to Stack Overflow API instead of Meta API
2 Answers
This has been fixed.
Going to a particular API/usage page should run requests against that API, instead of the default demonstration site (which has always been SO).
Annoyingly all usuage pages on all sites use the stackoverflow api site. I think Kevin said this is because changes to the API happen first on stackoverflow.
(not sure why this is a problem, because the API hardly ever changes)