Data Formats
The FamilySearch API uses the following data formats. Each data format has an associated XML and JSON version.
- If you make a
GETrequest, specify the data format using theAcceptheader. - If you
POSTsomething, specify the media type using theContent-Typeheader.
Read more about data formats (i.e., "media types") on Wikipedia.
GEDCOM X
The GEDCOM X data formats define the core data formats for genealogical data.
FamilySearch
The FamilySearch data formats provide extensions to the GEDCOM X data formats and are specific to the FamilySearch developer platform.
Atom
The Atom data formats are used to provide lists (i.e., "feeds") of data. These feeds are used in ordered result sets, such as search results and change history.