I search a word on Wiki pages using Wiki API. I need to know if that word is a name for a person.
For example searching "Leonardo Dicaprio"
https://en.wikipedia.org/w/api.php?action=query&list=search&srsearch=Leonardo%20Dicaprio&utf8=
I need to know from the query result if this is a name for a person
You would probably be better off doing this via the Wikidata Query Service and Sparql.
Something like this might work:
SELECT DISTINCT ?person ?personLabel ?article WHERE {
?person wdt:P31 wd:Q5 .
?person rdfs:label ?personLabel .
FILTER( LANG(?personLabel) = "en")
FILTER( CONTAINS(LCASE(?personLabel), "leonardo dicaprio") ) .
?article schema:about ?person .
?article schema:isPartOf <https://en.wikipedia.org/> .
}
LIMIT 10
(If that times out, you could add more specific searches, e.g. with 'country of citizenship': ?person wdt:P27 wd:Q30
)