What does API stand for? 

Accountants for the Public Interest

Business » Accounting

Accountable Property Inventory

Business » Accounting -- and more...

Advanced Photonix, Inc.

Business » AMEX Symbols

Asian Pacific Islander

International » Asian

Association for Pathology Informatics

Community » Associations

Association of British Insurers

Community » Associations -- and more...

Australian Pharmaceutical Ind Ltd

Business » ASX Symbols

Autobody Products Inc.

Miscellaneous » Automotive

Air Pollutant Index

Miscellaneous » Automotive

Automotive Professionals Inc.

Miscellaneous » Automotive

Automotive Process Institute

Miscellaneous » Automotive

Automotive Performance Index

Miscellaneous » Automotive

Automotive Parts Interpreter

Miscellaneous » Automotive

Auto Price Index

Miscellaneous » Automotive

Aromatic PolyImide

Academic & Science » Chemistry

Accept Practice And Improve

Community » Educational

Allocation Programming Identification

Academic & Science » Electronics -- and more...

American Petroleum Industry

Governmental » Energy

Antecedent Precipitation Index

Governmental » Environmental

Agri-Processing Index

Miscellaneous » Farming & Agriculture -- and more...

Application Program Interface file

Computing » File Extensions

1st Reader Passed parameter file

Computing » File Extensions

Adobe Printer Ink file

Computing » File Extensions

Lotus 1-2-3 Printer driver

Computing » File Extensions

Adobe Acrobat Plug-In

Computing » File Extensions -- and more...

Automotive Professionals Inc

Business » Companies & Firms

American Pirate Industries

Business » Companies & Firms

Automotive Professionals, Inc.

Business » Companies & Firms

Automated Processes Inc

Business » Companies & Firms

Alphabet Phonétique International

International » French

Asian / Pacific Islander

Academic & Science » Genealogy

Assume Positive Intent

Business » General Business

Angkatan Pemuda Indonesia

International » Indonesian

Associate in Personal Insurance

Business » Insurance

Academic Programs International

International

Association des Professionnels d'Informatique

Computing » IT

Access Preamble Indicator

Computing » IT

Asociacion de Periodistas de Internet

Computing » IT

Asociacion de Proveedores de Internet

Computing » IT

Adobe Printing Inks

Computing » IT

Absolute Position Indication

Computing » IT

Anonima Petroli Italiana

International » Italian

Active Pharmaceutical Ingredient

Medical » Laboratory -- and more...

Affluent Parents Index

Governmental » Law & Legal

API Group

Business » London Stock Exchange

Allocation Programming Interface

Academic & Science » Mathematics -- and more...

Article Periodocal Incollection

Community » News & Media

Alternative Press Index

Community » News & Media

Asthma Predictive Index

Medical

Air Pollution Index

Academic & Science » Meteorology

Atmospheric Pressure Ionization

Academic & Science » Meteorology

Administración Portuaria Integral

International » Mexican

After Project Initiation

Governmental » Military

Armor Piercing Incendiary

Governmental » Military

Aviation Preflight Indoctrination

Governmental » Military

Animal Protection Institute

Community » Non-Profit Organizations

Association of Private Investigators

Business » Professional Organizations

American Paper Institute

Business » Professional Organizations

American Petroleum Institute

Business » Professional Organizations -- and more...

Active Pharmaceutical Ingredients

Medical » Pharmacy

Active Pharmaceutical Item

Medical » Pharmacy

Armor Piercing Incendiary ammunition round

Business » Products

All Parts In

Business » Products

Alaska Psychiatric Institute

Academic & Science » Psychology

Asian or Pacific Islander

Regional

Asian/Pacific Islander

Regional -- and more...

Academic Perofrmance Index

Academic & Science

Application Programming Interface

Computing » Texting -- and more...

Portuguese Association of Informatics

Academic & Science » Societies

Australian Property Institute

Academic & Science » Societies

Associação Portuguesa de Informática

Academic & Science » Societies

Automatic Programming Interface

Computing » Software

Aggregate Programming Interface

Computing » Software

Asset Priority Index

Computing » Software

Application Programming Interfacing

Computing » Software

Application Programming Interfaces

Computing » Software

Application Proggram Interface

Computing » Software

Advance Programming Interface

Computing » Software

Alianza Popular Informativo

International » Spanish

Alianza Popular de Izquierdas

International » Spanish

Agrupación Provincial Independiente

International » Spanish

Athletes Performance Institute

Sports

As Per Instructions

Business » Stock Exchange

Android Page Interface

Computing » Telecom

Advance Passenger Information

Governmental » Transportation

A Profit Increase

Miscellaneous » Unclassified

Automated Pellet Inspection

Miscellaneous » Unclassified

Astral Projection Isle

Miscellaneous » Unclassified

Arnold P Ishnikov

Miscellaneous » Unclassified

Arithmetic Processor Interface

Miscellaneous » Unclassified

Application Programmer Interface

Miscellaneous » Unclassified

Application Programmable Interface

Miscellaneous » Unclassified

Applcation Program Interface

Miscellaneous » Unclassified

Analytical Profile Index

Miscellaneous » Unclassified

Application Program Interface

Miscellaneous » Unclassified -- and more...

Academic Performance Index

Academic & Science » Universities -- and more...

Acquisition Program Integration

Governmental » US Government -- and more...

Associazione Primatologica Italiana (Italian Primate Association)

Medical » Veterinary