API (disambiguation)

An API, or application programming interface, is any defined inter-program interface.

API or api may also refer to:

Companies and organizations

In education

  • Academic Performance Index, a measure of scholastic performance used in California, United States
  • Auburn University, formerly known as Alabama Polytechnic Institute

Places

In politics

In science and technology

  • Active pharmaceutical ingredient, a basic component of any medicine or pharmaceutical drug
  • Advanced primer ignition, a type of blowback operation for firearms that ignites the primer when the bolt is still moving with the goal of increasing rate of fire and decreasing felt recoil.
  • Petroleum industry nomenclature deriving from American Petroleum Institute
    • API gravity, a measure of the density of petroleum
    • API number, a unique identifier applied to each petroleum exploration or production well drilled in the United States
    • API unit, a standard measure of natural gamma radiation measured in a borehole
  • Analytical Profile Index, a miniaturized panel of biochemical tests compiled for identification of groups of closely related bacteria
  • API oil-water separator
  • Air Pollution Index, a measure of air quality used in Hong Kong and Malaysia
  • Armor-piercing incendiary, a type of armor-piercing shot and shell
  • Atmospheric pressure ionization, a type of ionization in mass spectrometry
  • Apnea–hypopnea index, an index used to indicate the severity of sleep apnea

Other uses

  • [[Passenger name record|Advance passenger information collected by commercial transportation operations
  • Asian-Pacific Islander
  • Aviation Preflight Indoctrination, the first major phase of training for a United States Naval Aviator
  • Announcement in the public interest, an alternate name for a public-service announcement
  • International Phonetic Alphabet, a system of phonetic notation (known in French as the alphabet phonétique international)

See also

  • AP1 (disambiguation)
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