Sources Overview

Schema reference for Sources entities

Sources are where works are hosted: journals, conferences, preprint repositories, and institutional repositories.

Filter, sort, and group_by fields

The API supports filtering, sorting, and grouping on sources fields. See Filtering, Sorting, and Grouping for syntax.

Fields marked (deprecated) are .search filters — use the search parameter instead.

Top-level

Field	Sort	Group_by	Filter
apc_usd	✓	✓	✓
cited_by_count	✓	✓	✓
continent	✓	✓	✓
country_code	✓	✓	✓
display_name	✓		✓
first_publication_year	✓		✓
from_created_date	✓		✓
has_issn	✓	✓	✓
host_organization	✓	✓	✓
host_organization_lineage	✓	✓	✓
is_core	✓	✓	✓
is_global_south	✓	✓	✓
is_high_oa_rate	✓	✓	✓
is_high_oa_rate_since_year	✓		✓
is_in_doaj	✓	✓	✓
is_in_doaj_since_year	✓		✓
is_in_jstage		✓	✓
is_in_jstage_since_year			✓
is_oa	✓	✓	✓
is_ojs	✓	✓	✓
issn	✓	✓	✓
issn_l	✓	✓	✓
last_publication_year	✓		✓
oa_flip_year	✓		✓
openalex	✓	✓	✓
openalex_id		✓	✓
to_created_date	✓		✓
to_updated_date	✓		✓
type	✓	✓	✓
works_count	✓	✓	✓

Apc Prices

Field	Sort	Group_by	Filter
apc_prices.currency	✓	✓	✓
apc_prices.price	✓		✓

Concept

Field	Sort	Group_by	Filter
concept.id	✓	✓	✓

Concepts

Field	Sort	Group_by	Filter
concepts.id	✓	✓	✓

Default

Field	Sort	Group_by	Filter
default.search (deprecated)			✓

Display Name

Field	Sort	Group_by	Filter
display_name.search (deprecated)			✓

Host Organization

Field	Sort	Group_by	Filter
host_organization.id	✓		✓

Ids

Field	Sort	Group_by	Filter
ids.mag	✓		✓
ids.openalex	✓	✓	✓

Summary Stats

Field	Sort	Group_by	Filter
summary_stats.2yr_mean_citedness	✓	✓	✓
summary_stats.h_index	✓	✓	✓
summary_stats.i10_index	✓	✓	✓

Topic Share

Field	Sort	Group_by	Filter
topic_share.id	✓	✓	✓

Topics

Field	Sort	Group_by	Filter
topics.id			✓

X Concepts

Field	Sort	Group_by	Filter
x_concepts.id	✓	✓	✓