In 1917, the U.S. Navy acquired Edorea under a free lease from her owner for use as a section patrol vessel during World War I. She was commissioned as USS Edorea (SP-549) on 27 July 1917.
Assigned to the 4th Naval District, Edorea operated on convoy escort and patrol duties in the Cape May, New Jersey, area for the rest of World War I. She also escorted U.S. Navy submarines to sea for target practice.
Edorea was decommissioned on 10 December 1918 and returned to her owner.