hierarchicalParents: Get hierarchical parents

API: ac.uk:embl-ebi-ontology-lookup-service-ols-api
Endpoint: /ontologies/{ontologyId}/terms/{termId}/hierarchicalParents
Response format: application/json
Auth: none
Method: GET
Last Status: 200
Latency: 218ms

Description

Returns hierarchical parents of the specified term (is_a relations only)

Parameters (5)

lang (string, query, optional, default: en)

Language code

ontologyId (string, path, required)

Ontology ID (e.g., 'go', 'efo', 'mondo')

page (integer, query, optional, default: 0)

Page number (0-indexed)

size (integer, query, optional, default: 20)

Page size

termId (string, path, required)

Term IRI (URL-encoded, typically double-encoded)

Examples (1)

Get hierarchical parents via termId probe-gate
curl 'https://www.ebi.ac.uk/ols4/api/ontologies/go/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FBFO_0000004/hierarchicalParents'
import requests

resp = requests.get("https://www.ebi.ac.uk/ols4/api/ontologies/go/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FBFO_0000004/hierarchicalParents")
data = resp.json()
import zingu_apis

api = zingu_apis.api("embl-ebi-ontology-lookup-service-ols")
result = api.fetch("ontologies/{ontologyId}/terms/{termId}/hierarchicalParents")

for item in result:
    print(item)
const resp = await fetch("https://www.ebi.ac.uk/ols4/api/ontologies/go/terms/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FBFO_0000004/hierarchicalParents");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 04:09:05.894369 200 218ms
2026-04-15 03:04:26.381391 200 282ms
2026-04-14 00:28:46.976369 200 316ms
2026-04-12 13:07:22.725727 200 255ms
2026-04-10 02:33:59.603007 200 147ms
2026-04-09 00:43:21.963769 200 234ms
2026-04-08 01:39:00.133056 200 358ms
2026-04-07 01:49:57.835251 200 242ms
2026-04-05 19:15:46.829211 200 398ms