{"uid":"cap_gqfNQRmaDWx6YMtcHdTFi","slug":"trust-history-oracle-npm-package-publication-chronology-8deb172c","name":"Trust History Oracle – npm Package Publication Chronology","description":"Return auditable npm package registration and publication chronology evidence.","url":"https://trust-history-oracle.delicate-yellowhorn.workers.dev/v1/package","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["name"],"properties":{"name":{"type":"string","description":"Exact npm package name."},"ecosystem":{"enum":["npm"],"type":"string","description":"Package registry ecosystem."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Y0uEiasX6L1CzSSWjLVn7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns auditable registration and publication history (chronology evidence) for a given npm package by name.","exampleAgentPrompt":"Can you pull up the full auditable publication and registration history for the npm package 'lodash'? I need a chronology of when it was first registered and each version was published.","exampleUseCases":[{"title":"Supply chain security audit","prompt":"I need to audit the npm package 'event-stream' — can you pull its full registration and publication chronology so I can verify when each version was released and flag anything suspicious?"},{"title":"Compliance timestamp verification","prompt":"We need auditable proof of when the npm package 'left-pad' was originally registered and published. Can you retrieve that chronology evidence for our compliance report?"},{"title":"Open source due diligence check","prompt":"Before we add 'axios' as a dependency, can you get me its complete npm publication timeline so I can see how long it's been around and how consistently it's been maintained?"}],"resultDescription":"The endpoint returns a structured chronology of the npm package's registration and publication events, including timestamps for initial registration and subsequent version releases, formatted as auditable evidence suitable for compliance or security review.","failureModes":["Package name not found in npm registry — returns an error or empty result","Missing required 'name' query parameter — validation error","Invalid or misspelled package name — no results returned","Rate limiting or payment failure (x402 protocol) — HTTP 402 or 429 response","Network timeout if registry data is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need auditable, structured chronology evidence of an npm package's registration and publication history — especially for supply chain security, compliance auditing, or due diligence workflows where a tamper-evident timeline is required rather than just a simple version list.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:30:22.453Z","isFirstParty":false}