Today we will shut down freebase.com
and the Freebase APIs. This is later than originally announced , but the launch of the KG Search API  also took longer than anticipated.
The Freebase data was openly licensed and belongs to all of us, so we'll be leaving the data dumps available indefinitely. In addition to the last regular data dump that's been available ever since Freebase went read only , we've added a complete final graphd dump that includes all of the tuple metadata for anyone who really wants a forensic challenge . If you have no idea what graphd tuples are, you probably shouldn't bother looking at it. ;-)
It was fun! And to keep contributing to open knowledge bases, remember to check out Wikidata (wikidata.org)!
- Google Knowledge Graph Team
guid - The 128-bit guid of the primitive, rendered as a 32-byte hex string.
typeguid - The guid of the primitive's type if it is an edge (the predicate in RDF terms). If empty, the primitive represents a node in the graph, rather than an edge.
left - The guid of the primitive's left-hand side (the subject in RDF terms).
right - The guid of the primitive's right-hand side (the object in RDF terms).
value - The literal value of the primitive. Only a few edge types have both right and value values (e.g, /type/object/key, /type/object/name).
datatype - The type of the value, when present. One of: string | boolean | integer | float | timestamp | url | guid | bytestring.
scope - The guid of the object whose permission was used to write the primitive (typically a user or attribution node).
timestamp - When the primitive was written, with16 bits of sub-second precision.
live - Whether the primitive was an assertion or deletion.
archival - not used
valuetype - not used
txstart - Signals the beginning of replication transaction
name - A few primitives are named so they can be directly accessed by system bootstrap code, starting with HAS_KEY.