Filter sources

You can filter sources with the filter parameter:

• Get sources that have an ISSN https://api.openalex.org/sources?filter=has_issn:true

/sources attribute filters

You can filter using these attributes of the Source entity object (click each one to view their documentation on the Source object page):

• (alias: host_organization.id)

• — Use this with a publisher ID to find works from that publisher and all of its children.

• (alias: openalex)

• — Requires exact match. Use the filter instead if you want to find works from a publisher and all of its children.

• (accepts float, null, !null, can use range queries such as < >)

• (accepts integer, null, !null, can use range queries)

• (accepts integer, null, !null, can use range queries)

• (alias: concepts.id or concept.id) -- will be deprecated soon

/sources convenience filters

These filters aren't attributes of the Source object, but they're included to address some common use cases:

continent

Returns: sources that are associated with the chosen continent.

• Get sources that are associated with Asia https://api.openalex.org/sources?filter=continent:asia

default.search

Value: a search string

display_name.search

Value: a search string

• Get sources with names containing "Neurology": https://api.openalex.org/sources?filter=display_name.search:Neurology``

has_issn

Value: a Boolean (true or false)

• Get sources without ISSNs: https://api.openalex.org/sources?filter=has_issn:false``

is_global_south

Value: a Boolean (true or false)

• Get sources that are located in the Global South https://api.openalex.org/sources?filter=is\_global\_south:true