Freebase

TLDR

Freebase is a practical, scalable tuple database that structures general human knowledge and is collaboratively created, structured, and maintained. MQL provides an easy‑to‑use object‑oriented interface to the tuple data in Freebase, designed to facilitate collaborative, Web‑based data‑oriented applications. Freebase’s public read/write access is enabled through an HTTP‑based graph‑query API that uses MQL, an object‑oriented interface for manipulating its tuple data. Freebase currently contains over 125 million tuples, more than 4 000 types, and more than 7 000 properties.

Abstract

Freebase is a practical, scalable tuple database used to structure general human knowledge. The data in Freebase is collaboratively created, structured, and maintained. Freebase currently contains more than 125,000,000 tuples, more than 4000 types, and more than 7000 properties. Public read/write access to Freebase is allowed through an HTTP-based graph-query API using the Metaweb Query Language (MQL) as a data query and manipulation language. MQL provides an easy-to-use object-oriented interface to the tuple data in Freebase and is designed to facilitate the creation of collaborative, Web-based data-oriented applications.