I want to check if a particular facebook page exists by giving in name. Is there any Graph API like that or are there any api which would give me fb page details by passing in fb pagename?
Please let me know
That is what the Search API is for, check it out in the official docs: https://developers.facebook.com/docs/graph-api/using-graph-api#search
Edit: This is no longer possible: https://developers.facebook.com/docs/graph-api/changelog/breaking-changes/#search-4-4
More information on this thread: https://stackoverflow.com/a/49868085