plugmyagent

ChEMBL

Science Data No key

AuthenticationNo key
Rate limitNo published hard limit; results are paginated, keep requests modest.

Documentation: www.ebi.ac.uk ยท Checked Sep 13, 2026

About

ChEMBL is a carefully curated database from the European Bioinformatics Institute covering bioactive, drug-like molecules. Its free API lets you search millions of compounds, see which biological targets they act on, and view lab measurements like IC50 values. No key is needed, and it is a go-to resource for drug discovery research.

Details

No key needed. You can call it right away.

Auth: No key

Rate limit: No published hard limit; results are paginated, keep requests modest.

Verified: 2026-09-13

Best for: personal developer

Read the docs Back to catalog

Setup

  1. Open the interactive docs page in your browser to try endpoints live.
  2. Paste the example URL to see molecule records instantly, no signup needed.
  3. Add Django-style filters to the URL, e.g. pref_name__icontains=aspirin, to search.
  4. Follow the pagination links in responses to page through large results.
Sign up