{"uid":"cap__5_DeDRc8zTgGcSL7Xmck","slug":"openfda-gsrs-substance-search-13cdfffa","name":"OpenFDA GSRS Substance Search","description":"Search the openFDA GSRS substance dataset for substance {q}, returning UNII substance records. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/openfda-substance-data","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_11-HfCs007TTyDhpN2ebn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search the FDA Global Substance Registration System (GSRS) dataset by substance name or identifier, returning UNII substance records in JSON.","exampleAgentPrompt":"Can you search the openFDA GSRS substance database for 'aspirin' and give me its UNII record and registration details?","exampleUseCases":null,"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:03:34.413Z","isFirstParty":false}