Превратите ваш список URL-адресов в массив и запустите как пакетное задание API
docs http://developers.facebook.com/docs/reference/api/batch/
curl \
–F 'access_token=…' \
-F 'batch=[ \
{"method": "GET", "relative_url": "?id=URL1"}, \
{"method": "GET", "relative_url": "?id=URL2"}, \
{"method": "GET", "relative_url": "?id=URL3"}, \
{"method": "GET", "relative_url": "?id=URL4"}, \
{"method": "GET", "relative_url": "?id=URL5"} \
]'\
https://graph.facebook.com
или используя fql link_stat в пакете
curl \
-F 'access_token=…' \
-F 'batch=[ \
{ "method": "POST", "relative_url": "method/fql.query?query=select+like_count+from+link_stat+where+url+in("url1","url2","url3","url5","url6")", }, \
{ "method": "POST", "relative_url": "method/fql.query?query=select+like_count+from+link_stat+where+url+in("url7","url8","url9","url10","url11")", } \
]'\
https://graph.facebook.com