{"uid":"cap_UpOSp8uX58eO-J9srySPT","slug":"pennyrail-number-to-roman-numeral-converter-786665b5","name":"PennyRail Number to Roman Numeral Converter","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/number.roman--roman","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"number"}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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_4baAx7einGvHCIN-TyBJ_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts a numeric integer input into its Roman numeral string representation","exampleAgentPrompt":"Can you convert the number 2024 into Roman numerals for me?","exampleUseCases":[{"title":"Year formatted as Roman numeral","prompt":"I need to display the year 1994 as a Roman numeral for my film credits — can you convert it?"},{"title":"Chapter numbering in classical style","prompt":"Convert the number 12 to a Roman numeral so I can label chapter 12 in my book as a classical-style heading."},{"title":"Clock face numeral generation","prompt":"What is the Roman numeral for 9? I'm designing a clock face and need the correct notation for each hour position."}],"resultDescription":"Returns an object containing the Roman numeral string representation of the provided numeric input, e.g. the number 42 yields 'XLII'.","failureModes":["Non-integer or non-numeric input returns a validation error","Numbers outside the valid Roman numeral range (typically 1–3999) may return an error or unexpected result","Missing required 'input' field returns a 400-level error","Very large numbers may not be representable in standard Roman numerals"],"whenToPreferThis":"Use this endpoint when you need a quick, paid, machine-readable conversion of an integer to Roman numeral notation, especially within automated pipelines or agent workflows that already support x402 micropayment protocols. Prefer this over building your own conversion logic when you want a hosted, reliable service with a per-call pricing model.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:53.561Z","isFirstParty":false}