API calls only query data in a specific region. Format: <server-url>/<API>?<params>

Server URL: Replace <server-url> with the region-specific URL.
API: Replace <API> with the desired API endpoint. The two endpoints are searchAPI.php and provinceAPI.php
Parameters: Replace <params> with required or optional parameters.

These regions have APIs that can be accessed:
China ⇒ "https://chinalex.geolex.org"
Indian Plate ⇒ "https://indplex.geolex.org"
Thailand ⇒ "https://thailex.geolex.org"
Vietnam ⇒ "https://vietlex.geolex.org"
Niger ⇒ "https://nigerlex.geolex.org"
Malaysia ⇒ "https://malaylex.geolex.org"
Africa ⇒ "https://africalex.geolex.org"
Belgium ⇒ "https://belgiumlex.geolex.org"
Middle East ⇒ "https://mideastlex.geolex.org"
Panama ⇒ "https://panamalex.geolex.org"
Qatar ⇒ "https://qatarlex.geolex.org"
South America ⇒ "https://southamerlex.geolex.org"
Dev ⇒ "https://dev.geolex.org"

These are the parameters that SearchAPI accept:
searchquery: String. Full or partial names of formations, including contents in the Synonym section. Optional.
periodfilter: String. Name of the period limiting the search. Optional.
provincefilter: String. Name of the province limiting the search. Optional.
agefilterstart: Number (Ma). Bottom age of the search. Optional.
agefilterend: Number (Ma). Top age of the search, not greater than agefilterstart. Optional.
lithofilter: String. Names of lithology patterns. Optional.
response: String. 'long' returns all fields. Optional.

This API will return a JSON Object with these fields (each is a formation):
name: String. Name of the formation.
endAge: Number. Top age of the formation.
begAge: Number. Bottom age of the formation.
province: String. Provinces of the formation.
geojson: GeoJSON. Coordinates of the formation.
period: String. Bottom period of the formation.
stage: String. Bottom stage of the formation.
lithology_pattern: String. Lithology pattern of the formation.
isSynonym:Boolean. If this formation is the result of a search in the Synonym section (see searchquery parameter).

Fields below are only returned when the response=long argument is passed in. “Optional” means that the field may be empty.
age_interval: String. A description of age span of the formation. Optional.
lithology: String. Full description of the lithology of the formation. Optional.
lower_contact: String. Optional.
upper_contact: String. Optional.
regional_extent: String. Optional.
fossils: String. Optional.
age: String. Optional.
depositional: String. Optional.
additional_info: String. Optional.
compiler: String. Optional.
age_span: String. Optional.
beginning_stage: String. This is the same as the `stage` field.
frac_upB: Number. The fraction of age span in the bottom stage.
beg_date: Number. This is the same as the `begAge` field.
end_stage: Number. Top stage of the formation.
frac_upE: Number. The fraction of age span in the top stage.
end_date: Number. This is the same as the `endAge` field.
depositional_pattern: String. Optional.

No parameters needed or accepted.

This API will return a JSON Object that is an array of province names, which are Strings, sorted by alphabetical order.

• https://chinalex.geolex.org/searchAPI.php?agefilterstart=70 - This searches for all formations in China that span over 70 Ma regardless of their names, provinces, or lithology patterns.
• https://thailex.geolex.org/searchAPI.php?agefilterstart=70&response=long - This searches for the same set of formations in Thailand like the previous example, but this query will return more detailed information for each formation.
• https://chinalex.geolex.org/searchAPI.php?searchquery=changxing&lithofilter=limestone - This searches for all formations in the China that have "changxing" in their names and "limestone" in their lithology patterns.
• https://dev.geolex.org/provinceAPI.php - This returns an array of province names available in Dev.