{"uid":"cap_-ffm6MQgPda4-WDbiYfLu","slug":"cran-package-description-metadata-lookup-a2f02d34","name":"CRAN Package Description Metadata Lookup","description":"Description-file metadata for an R package on CRAN (param pkg = package name). Query: ?pkg= Returns JSON.","url":"https://clonecho.builda.company/x402/s/cran-package","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_AdY9whJJadpA1akkADF8B","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":"Fetches DESCRIPTION-file metadata for a specified R package on CRAN, returning structured JSON with package details.","exampleAgentPrompt":"Can you pull up the CRAN package metadata for 'data.table' — I want to know its version, author, maintainer, and what it depends on?","exampleUseCases":null,"resultDescription":"A JSON object containing the DESCRIPTION file metadata for the specified R package on CRAN, including fields such as package name, version, title, description, author, maintainer, license, dependencies, and other standard DESCRIPTION file entries.","failureModes":["Package name not found on CRAN — returns error or empty response","Misspelled package name yields no results","CRAN is temporarily unavailable causing timeout","Package has been archived and metadata may be incomplete"],"whenToPreferThis":"Use this endpoint when you need structured metadata about an R package hosted on CRAN, such as version, author, maintainer, or dependency information. Prefer this over scraping the CRAN web page directly or using general web search when you need machine-readable, structured JSON output for a known package name.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:58.202Z","isFirstParty":false}