{"uid":"cap_6DJfTiu_h6_Dh5uNUyD6F","slug":"numora-annuity-calculator-901b7bad","name":"Numora Annuity 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://numormor.netlify.app/api/financial/annuity","method":"POST","headers":{},"bodySchema":{"type":"object","required":["rate","payment","periods"],"properties":{"rate":{"type":"number"},"type":{"enum":["ordinary","due"],"type":"string"},"payment":{"type":"number"},"periods":{"type":"integer"}}},"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":{"p10Cents":"10.0000","medianCents":"10.0000","p90Cents":"10.0000","minCents":"10.0000","maxCents":"10.0000","p95Cents":"10.0000","sampleCount":1,"varies":false,"failureChargeRate":1},"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_egp039HZM6U3_clVgY6yB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the present or future value of an annuity given a periodic payment amount, interest rate, and number of periods","exampleAgentPrompt":"Calculate the present value of an ordinary annuity with monthly payments of $500 at an annual interest rate of 6% over 30 years (360 periods).","exampleUseCases":null,"resultDescription":"Returns a JSON object with a boolean success flag, a result object containing the computed annuity value (present or future depending on type), and a human-readable computation string describing what was calculated.","failureModes":["Missing required fields (rate, payment, or periods) returns an error","Non-positive periods or zero-rate edge cases may produce unexpected results","Invalid annuity type string may default or error","Payment amount of 0 returns trivial zero result","Network or server unavailability on Netlify hosting"],"whenToPreferThis":"Use this endpoint when you need a pure, dependency-free server-side annuity computation without building your own time-value-of-money formula. Ideal for AI agents performing financial planning, loan analysis, retirement projections, or comparing lump-sum vs payment-stream equivalences. Prefer it over generic calculators when you want a structured JSON response with a human-readable explanation of the computation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:46:45.044Z","isFirstParty":false}