He was appointed minister to the United States in 1900, replacing Ali Ferrouh Bey.
[2] The appointment was formally made on August 20, but Shekib did not arrive until September 1901.
During Shekib's absence, Ferrouh served as the interim charge d'affairs.
[1] Abdul Hamid II disliked it when the Americans pleaded for help for Armenians.
As a result, he terminated the credentials of envoy Mustafa Shekib, and chose not to upgrade the mission to embassy status.