Do you mean an API for testosterone as a chemical/drug data resource, or something else (e.g., APIs specific to anabolic steroids)?
If you’re looking for programmatic access to data about testosterone (the hormone and its esters), here are reliable public options:
- PubChem PUG REST API
- What it is: A free chemical database with substances, structures, properties, and synonyms.
- How to use (simple flow): search by name to get a CID, then fetch properties.
- Example:
- Search: GET https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/testosterone/JSON
- Properties: GET https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/6013/property/MolecularWeight,MolecularFormula,InChIKey/JSON
- Notes: Great for basic chemical data, structure, formula, IDs, and simple properties.
- NLM RxNorm API
- What it is: Standardized drug names and RxCUI identifiers; useful for clinical and EHR-related data.
- Use case: map testosterone-related terms to a normalized drug code and get related metadata.
- OpenFDA
- What it is: Public FDA data on drug labeling, adverse events, and recalls.
- Use case: retrieve official labeling and regulatory information for testosterone products.
- ChEMBL / DrugBank (data sources)
- What it is: Rich pharmacology databases; ChEMBL is freely accessible for many queries, DrugBank has extensive drug data (may require license for broad API use).
- Use case: deeper pharmacology, targets, mechanisms, and related compounds.
Tips
- PubChem is usually the simplest starting point for a testosterone compound lookup and basic properties.
- If you’re building a clinical or dosing-focused app, RxNorm (and maybe OpenFDA) can complement PubChem data with standardized drug names and regulatory info.
If you can share:
- Which exactly you want to know (chemical properties, pharmacology, regulatory labeling, dosing info, etc.),
- Your preferred programming language,
- Whether you need free/public access vs. licensed data,
I can give you a ready-to-run example and tailor API calls to your use case. And a quick safety note: testosterone and its esters are controlled substances in many jurisdictions. Ensure your use complies with local laws and medical guidelines.