The Hebrew words are attributed to the first century Rabbi Nehunia ben Hakana. The English translation is by Rabbi Zalman Schachter-Shalomi.
The melody is by Rabbi Yisroel Friedman known as the Rhizhiner who lived in the 19th century. I learned the melody from Reb Zalman.
Ana B’koach recording in Hebrew
Ana B’koach recording in Hebrew and English
Click here to download the words to Ana B’Ko’ach in Hebrew and English