{"uid":"cap_MCW7gLptr96j0TjTdUi6O","slug":"fhir-r4-structuredefinition-list-4e4f40aa","name":"FHIR R4 StructureDefinition List","description":"List FHIR profiles and structure definitions (StructureDefinition resources) from the public HL7 FHIR R4 test server, returning {q} entries as a FHIR Bundle. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/fhir-structure-definition-list","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_AyY4LIaDbt1qO4jW5M3DP","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":"Lists FHIR profiles and StructureDefinition resources from the public HL7 FHIR R4 test server, returning a configurable number of entries as a FHIR Bundle JSON.","exampleAgentPrompt":"Can you pull me a list of 20 FHIR StructureDefinition profiles from the HL7 FHIR R4 test server and return them as a FHIR Bundle?","exampleUseCases":null,"resultDescription":"A FHIR Bundle (JSON) containing the requested number of StructureDefinition resources, each describing a FHIR profile or structure definition from the public HL7 FHIR R4 test server.","failureModes":["Invalid or missing q parameter may return an empty or default-sized bundle","HL7 FHIR R4 public test server downtime may cause request failure","Non-numeric q value may result in a bad request error","Very large q values may time out or be capped by the upstream server"],"whenToPreferThis":"Use this endpoint when you need to enumerate or browse available FHIR profiles and StructureDefinition resources from the HL7 FHIR R4 public test server. Prefer this over direct FHIR server queries when you need a simple, paid-API abstraction that returns a clean JSON FHIR Bundle without managing FHIR server authentication or pagination complexity.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:22:01.047Z","isFirstParty":false}