# Provenance stamped 2026-10-07 (roadmap#943): written by an API Evangelist sweep (undated — the file carries no date and git cannot supply one), not # harvested from the provider. `method: generated` so the economics campaign may replace it with a # dated, verbatim transcription; every figure below is unverified until it does. # Coverage demoted 2026-10-07 (roadmap#942, PLAN.md Stage A): this file was written by an API Evangelist # sweep and names no billing unit, meters or pricing category read from the provider — it restates the # FinOps framework. It is `x-coverage: unmeasured`, and the FOCUS alignment it claimed has been removed. x-coverage: unmeasured method: generated finops: model: free-open-access cost: $0 summary: > ChEMBL is a publicly funded resource maintained by EMBL-EBI with no cost to API consumers. There are no subscription tiers, usage-based charges, or premium plans. All API access, data downloads, and cheminformatics utilities are provided free of charge to both academic and commercial users. Funding comes from EMBL member state contributions and public research grants including the Wellcome Trust and BBSRC. pricing: - tier: Open Access price: Free currency: N/A billing: None features: - Full ChEMBL Data REST API access - Full Cheminformatics Utilities API access - FTP bulk data downloads - All response formats (JSON, XML, YAML, SDF, SVG) - Python client library (open source, MIT license) considerations: - No API keys to manage or rotate - No usage bills or overage charges - No rate limit tiers to track - Attribution in publications is expected per scientific community norms - Commercial use permitted under CC BY-SA 3.0 license with attribution - Self-hosting option: full database dumps available via FTP for organizations needing private instances funding: - EMBL member state contributions - Wellcome Trust - BBSRC (UK Research and Innovation) - OpenTargets partnership license: name: Creative Commons Attribution-ShareAlike 3.0 Unported url: https://creativecommons.org/licenses/by-sa/3.0/ commercial: true attribution: required shareAlike: true contacts: - type: General email: chembl-help@ebi.ac.uk url: https://www.ebi.ac.uk/chembl/