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ChEMBL API

Government & Science

EMBL-EBI bioactivity database API for drug-like molecules, targets, and assay data.

ChEMBL API is listed in Government & Science.

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