Wikimedia REST API

The Wikimedia REST API offers access to Wikimedia's content and metadata in machine-readable formats. Focused on high-volume use cases, it tightly integrates with Wikimedia's globally distributed caching infrastructure. As a result, API users benefit from reduced latencies and support for high request volumes.

The REST API along with its documentation is available for all major Wikimedia projects at the location /api/rest_v1/. For example, for the English wikipedia it is available at https://en.wikipedia.org/api/rest_v1/ .

While the functionality offered by most projects closely matches that on English wikipedia, there are some noteworthy exceptions:
 * wikimedia.org offers cross-project information like page view metrics.
 * en.wiktionary.org offers an experimental definition end point, exposing Wiktionary information as structured data. Support for other languages is under discussion.