{"uid":"cap_95pyyE1CFCLxvsRp8JZMM","slug":"numora-payback-period-calculator-dd37accd","name":"Numora Payback Period Calculator","description":"100 pure math computation endpoints for AI agents. Statistics, financial math, linear algebra, equation solving, calculus, number theory, sequence generation, and unit conversions. Zero external dependencies. x402 micropayments on Base.","url":"https://numorapoi.orbonomy.xyz/api/financial/payback","method":"POST","headers":{},"bodySchema":{"type":"object","required":["cashflows","investment"],"properties":{"cashflows":{"type":"array"},"investment":{"type":"number"}}},"responseSchema":{"type":"object","required":["success","result","computation"],"properties":{"result":{"type":"object","description":"Computation result varies by endpoint"},"success":{"type":"boolean","description":"Always true on success"},"computation":{"type":"string","description":"Human-readable description of what was computed"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sjWO9JCvcKo3JdTJBxd4Q","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the payback period for an investment given a series of cash flows","exampleAgentPrompt":"Calculate the payback period for an initial investment of $50,000 with annual cash flows of [$10,000, $15,000, $20,000, $18,000, $12,000].","exampleUseCases":null,"resultDescription":"Returns a JSON object with success:true, a result object containing the computed payback period (in periods/years), and a human-readable computation string describing what was calculated.","failureModes":["Missing required 'investment' field returns validation error","Missing or empty 'cashflows' array returns validation error","Non-numeric values in cashflows array may cause computation error","Investment never recovered from cash flows may return infinite or error result","Payment failure via x402 micropayment returns 402 status"],"whenToPreferThis":"Use this endpoint when you need a pure server-side payback period calculation with no external dependencies, especially in automated agent workflows using x402 micropayments on Base. Prefer this over spreadsheet tools or general-purpose math libraries when you need a reliable, stateless API call for capital budgeting analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:45:38.786Z","isFirstParty":false}