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Saylor Innovations Drug Annotations (MyChem/ChEMBL)
x402
Saylor Innovations Drug Annotations (MyChem/ChEMBL) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).
Looks up drug and chemical compound identifiers including ChEMBL ID, PubChem CID, molecular formula, weight, IUPAC name, UNII, ChEBI ID, and max clinical phase by compound name
Price / call$0.01
Success—
StatusUnknown
How this service works
Drug and compound identifiers from MyChem - ChEMBL ID and max clinical phase, PubChem CID, formula, weight, IUPAC name, UNII and ChEBI ID
Output
Returns a list of matching compounds with cross-database identifiers including ChEMBL ID, PubChem CID, UNII, ChEBI ID, InChIKey, SMILES, molecular formula, molecular weight, IUPAC name, molecule type, max clinical phase, and first approval year, plus query metadata (count, total, source).
Example use cases
Drug database cross-reference lookup
“I need the ChEMBL ID, PubChem CID, and UNII for ibuprofen — can you pull all those identifiers at once?”
Clinical phase status check
“What is the max clinical phase for semaglutide and when was it first approved?”
Compound structure annotation
“Get me the molecular formula, molecular weight, IUPAC name, InChIKey, and SMILES string for caffeine.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/chem/drug-annotations?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured cross-database chemical identifiers (ChEMBL, PubChem, ChEBI, UNII) for a drug or compound by name in a single call. Ideal for cheminformatics pipelines, drug discovery workflows, and regulatory annotation tasks where multiple identifier namespaces are needed simultaneously. Prefer over direct PubChem or ChEMBL API calls when you want a unified response with clinical phase data included.
Side effects
- Unknown or misspelled compound name returns empty compounds array
- Ambiguous name may return multiple compounds requiring disambiguation
- Very new or obscure compounds may lack some identifier fields (null values)
- Some fields like UNII or ChEBI ID may be null if not available in MyChem source
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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