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GET
Available source filters
Returns the values you can use in the filters of Search sources. The options and their counts depend on the criteria you send: only those that exist within that result are returned.

Query parameters

All are optional and work the same as in Search sources. The filters accept several values separated by commas.
string
Search text (source name).
string
Source type. Use the returned value (for example, journal).
string
Current Scimago quartile. Example: Q1,Q2.
string
APC range in USD: minimum and maximum separated by a comma. Example: 100,2000.
string
Open access route. Use the returned value (for example, open or diamond).
string
Publication time in weeks: minimum and maximum separated by a comma. Example: 4,12.
string
License type. Example: CC BY,CC BY-NC.
string
OpenAlex topics. Use the returned value (URL).

Response

The response is an object with one field per filter.

Option lists

object[]
Available source types (for example, journal).
object[]
Available Scimago quartiles (Q1, Q2, Q3, Q4). Same structure as source_types.
object[]
Available license types (for example, CC BY). Same structure as source_types.
object[]
Available OpenAlex topics. The value is the topic URL. Same structure as source_types.

Ranges

object
APC range in USD.
object
Range of publication time in weeks.

Option tree

object[]
Open access route. The open node (Abierto) groups diamond, gold and hybrid in children; closed (Cerrado) has no children.