Resolve any xTiles link to the content it points at. Use this whenever the user pastes an xTiles URL instead of guessing which id it contains — the same URL can address a whole page or a single tile depending on its query string. Handles page links (/{viewId}, /doc/{viewId}, /embed/{viewId} — any xTiles domain, public or custom), tile links (?nvi=, ?wfm=, ?scrollTo=) and "copy link" links (/links/{linkId}). The URL is parsed and resolved against your own xTiles content by our API — it is never fetched from the host it names, so this only ever reaches the caller's own xTiles resources. Returns resource_type (what the link turned out to be), the ids it resolved to, and the content of THAT resource — for a tile link, the tile's own markdown, not the whole page. To read the full page a tile belongs to, follow up with xtiles_get_view_content using the returned view_id. A link to a collection card resolves to that card and returns ITS content — a card and a tile are the same item wearing two hats, so the type is TILE. The response states what you may do with the resource; respect it before offering to edit. Leftover tracking parameters (utm_*, im_ref, …) are ignored — paste the link as-is. Errors: 400 the string is not an xTiles link; 422 the link is a recognised shape we cannot resolve yet (public forms, task screens, workspace links); 404 the page or link no longer exists; 403 no access — which is also the answer for an unknown collection row, since telling those two apart would leak whether a private id exists. Report a 403 as "no access, or it no longer exists", not as a definite refusal.