A player or clan tag is a public identifier beginning with #. It is not a password, login code or Supercell ID credential. Clash Astuce accepts the tag with or without the leading # and normalizes it before an official API request.
Where to find your tag
Open the relevant player or clan profile inside Clash of Clans and copy the tag shown beneath the name. Names are not unique, so a name alone cannot identify the correct profile.
What a tag can reveal
The official API may return public profile, roster, league, war and Raid Weekend fields. Availability depends on the endpoint and clan privacy settings. A tag cannot grant access to an account.