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OpenFDA GSRS Substance Search
x402
OpenFDA GSRS Substance Search is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Search the FDA Global Substance Registration System (GSRS) dataset by substance name or identifier, returning UNII substance records in JSON.
Price / call$0.02
Success—
StatusUnknown
How this service works
Search the openFDA GSRS substance dataset for substance {q}, returning UNII substance records. Query: ?q= Returns JSON.
Output
A JSON response containing UNII substance records from the FDA Global Substance Registration System matching the search query, including substance identifiers, names, and registration metadata.
Example use cases
Example prompt
“Can you search the openFDA GSRS substance database for 'aspirin' and give me its UNII record and registration details?”
Technical details
Endpoint
POSThttps://clonecho.builda.company/x402/s/openfda-substance-dataWhen to prefer
Use this endpoint when you need to look up FDA-registered substance data, UNII codes, or GSRS records for pharmaceutical compounds, chemicals, or drug substances. Prefer this over general web search when you need authoritative FDA regulatory identifiers and substance metadata.
Side effects
- No matching substance found for the query string — returns empty results
- Malformed or missing query parameter — may return error or empty response
- Substance exists but has no GSRS record — no results returned
- Service unavailability or rate limiting — HTTP error response
- Payment not completed — 402 Payment Required response
Tags
x402
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