Authorities responded immediately to the scene, but were unable to locate any bomb or explosive device.
Embassy personnel were allowed to go back to work after authorities gave the all clear.
The recent escalation of the Israeli-Palestinian conflict in the Gaza Strip has spawned small-scale protests and demonstrations in Costa Rica’s capital city in recent weeks against what some describe as heavy-handedness on the part of Israel and a significant civilian death toll approaching 2,000 in Gaza.
Costa Rica’s government has also been critical of recent Israeli operations in Gaza.
Authorities have not yet identified any suspects in Friday’s bomb threat, but have reason to take such threats seriously. In 1992, a suicide bombing attack on the Israeli embassy in Buenos Aires, Argentina, killed 29 civilians and injured 242.