GET /ontologies/{ontologyId}/terms/{iri}/descendants
ac.uk:embl-ebi-ontology-lookup-service-ols-api
Summary: Get descendant terms
Operation ID: getTermDescendants
Auth: unknown
Operation ID: getTermDescendants
Auth: unknown
Description
Returns all descendant terms (transitive children) of the specified term
Parameters (3)
iri
(string, path, required)
URL-encoded IRI of the term
lang
(string, query, optional, default: en)
ontologyId
(string, path, required)
Examples (3)
| Title | Type | URL | Action |
|---|---|---|---|
| Get descendants of GO biological_process term | curl |
https://www.ebi.ac.uk/ols4/api/ontologies/go/terms/http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FGO_0008150/descendants |
|
| Get descendants of HP Phenotypic abnormality term | curl |
https://www.ebi.ac.uk/ols4/api/ontologies/hp/terms/http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FHP_0000118/descendants |
|
| Get descendants of MONDO disease root term | curl |
https://www.ebi.ac.uk/ols4/api/ontologies/mondo/terms/http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FMONDO_0000001/descendants |
Probe History
Status Codes
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 10:22:38.164446 | 400 | 145ms | |
| 2026-03-23 10:21:37.318007 | 400 | 154ms | |
| 2026-03-23 09:12:00.077616 | 400 | 134ms |