By default the API will return XML. However if JSON is preferred the accept header should be application/json.
JSONP is also supported. To use JSONP you need only append a callback parameter to your requests. For example:
curl -v -H "Accept:application/json" https://api.taykt.com/word/fruit?callback=myFunction
...will produce:
myFunction( {
"word" : "fuit",
"self" : "http://api.taykt.com/word/fuit",
"available" : "true" }
)