GET /activity

ac.uk:chembl-api

Summary: Search bioactivities
Operation ID: searchActivities
Auth: unknown
Description

Search for bioactivity data with filters.

Parameters (5)

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

Maximum number of results

molecule_chembl_id (string, query, optional)

Filter by molecule ChEMBL ID

pchembl_value__gte (number, query, optional)

Filter by pChEMBL value (greater than or equal)

standard_type (string, query, optional)

Filter by activity type

Constraints: {'enum': ['IC50', 'Ki', 'Kd', 'EC50', 'Potency', 'Activity', 'Inhibition', 'MIC', 'MIC90', 'MBC']}

target_chembl_id (string, query, optional)

Filter by target ChEMBL ID

Examples (3)

TitleTypeURLAction
List first 10 activities curl https://www.ebi.ac.uk/chembl/api/data/activity?limit=10
Activities for Aspirin (CHEMBL25) curl https://www.ebi.ac.uk/chembl/api/data/activity?molecule_chembl_id=CHEMBL25&limit=5
Activities for COX-1 target (CHEMBL204) curl https://www.ebi.ac.uk/chembl/api/data/activity?target_chembl_id=CHEMBL204&limit=5

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:43:26.224756 200 442ms
2026-03-23 10:31:04.248710 200 477ms
2026-03-23 10:24:43.759875 200 245ms

Response Changes

WhenOldNew
2026-03-23 10:31:04.248710 f6da55007af0 b6aaf32be479
2026-03-23 10:43:26.224756 b6aaf32be479 0a1f13af4121