Please tell me how to check the achievement of at least one hero in the account in API WOW
There are many topics in this forum regarding achievements and even more describing how to get character information and the basics of the API.
Please use the search first, and post here any questions that might persist after that. Preferably posting a piece of code you are working on as a reference.
There is no such discussion, I just need to know, I can see that the achievement is not completed on a specific hero, but there is an execution on the account
If the player has elected to expose account-wide completions, they are reflected in the character response. If the player has decided to hide account-wide completions, they are not available.