QpX

QPx is a designation used as an acronym or project name in various technology contexts. It is not tied to a single, universally recognized product or standard, and its meaning can vary by organization, domain, or time period. As a result, references to QPx often point to different projects rather than a single entity.

One of the more prominent public references to the term is Google's QPX Express API, a travel-related service introduced in the early 2010s. The API provided programmatic access to flight data, including fares, schedules, and itineraries, and was part of Google's broader set of travel tools. Over time, Google deprecated the API and eventually discontinued access for new developers, with existing support phased out as the company shifted its product strategy.

Beyond the Google API, QPx has appeared as an internal project name or component within various organizations. In these cases, QPx may refer to software libraries, data-processing utilities, query processors, or hardware-oriented firmware developed for specific applications. Such uses are typically organization-specific and lack wide public documentation, making cross-project comparisons difficult.

Because QPx is not anchored to a single widely recognized product, readers encountering the term should seek context from the source—organizational pages, release notes, or repository documentation—to determine which QPx is being referenced. See also QPX and related disambiguation pages for similarly named terms.