ChEMBL API
EMBL-EBI bioactivity database API for drug-like molecules, targets, and assay data.
ChEMBL API is listed in Government & Science.
Auth No auth Pricing Free URL https://www.ebi.ac.uk/chembl/ Docs https://chembl.gitbook.io/chembl-interface-documentation/web-services
Key metrics
Fair use Rate limit Free and keyless; no hard published rate limit (fair use; batch/pagination recommended).
Gotchas
No gotchas documented yet. Contribute one if you know a constraint we missed.
Labels
- No auth
No auth
Callable with no API key or login — lowest-friction to integrate.
chemistry bioactivity drugs pharmacology molecules