{"uid":"cap_uU7SngyI7UE33-B_Ai7bQ","slug":"numora-irr-internal-rate-of-return-calculator-c40188f5","name":"Numora IRR (Internal Rate of Return) 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://numomo.vercel.app/api/financial/irr","method":"POST","headers":{},"bodySchema":{"type":"object","required":["cashflows"],"properties":{"cashflows":{"type":"array"}}},"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":"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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IshD8bGf_7HZLkphoi97j","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the Internal Rate of Return (IRR) for a series of cash flows using numerical methods","exampleAgentPrompt":"Calculate the IRR for an investment where I pay $10,000 upfront and then receive $3,000, $4,500, $4,000, and $3,500 over the next four years — what's my annualized return rate?","exampleUseCases":[{"title":"Startup investment return evaluation","prompt":"I'm evaluating a startup deal where I invest $50,000 now and expect to receive $5,000 in year 1, $15,000 in year 2, $25,000 in year 3, and $40,000 in year 4 — what's the IRR on that?"},{"title":"Real estate project profitability check","prompt":"For a real estate flip where I put in $200,000 today and get back $30,000 after 6 months, $80,000 after 12 months, and $140,000 after 18 months, can you calculate the IRR?"},{"title":"Comparing two capital projects","prompt":"I have two projects to compare — Project A has cash flows of -100000, 40000, 45000, 50000 and Project B has -100000, 20000, 35000, 90000. Calculate the IRR for each so I can see which one has a better return rate."}],"resultDescription":"Returns a JSON object with a success boolean, a result object containing the computed IRR value (typically as a decimal or percentage), and a human-readable computation string describing what was calculated.","failureModes":["No valid IRR exists if cash flows never change sign (all positive or all negative) — solver may return an error or NaN","Non-convergence if cash flows have multiple sign changes producing multiple IRRs","Empty or single-element cashflows array returns an error","Extreme cash flow magnitudes may cause numerical instability","Missing required cashflows field returns a validation error"],"whenToPreferThis":"Choose this endpoint when you need a pure numerical IRR computation with no external data dependencies, and want a fast, deterministic result paid per-call via x402 micropayments. Ideal for AI agents embedded in financial analysis workflows that need to compute IRR on demand without managing a full financial data subscription. Prefer this over spreadsheet tooling or general-purpose code execution when you need a reliable, single-purpose API call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:55:10.233Z","isFirstParty":false}