{"uid":"cap_io8mWWbQBvYl5rAy2S1vx","slug":"exact-real-interest-rate-single-calculation-9fd1a36b","name":"Exact Real Interest Rate - Single Calculation","description":"Exact real interest rate - Single calculation: Calculate one supplied record with the formula and units. Metric: Exact real interest rate. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded single calculation report.","url":"https://market.datapackvibe.com/x402/assistant-finance-real-interest-calculate?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"values":{"type":"object","default":{"inflation_percent":2,"nominal_rate_percent":5},"required":["nominal_rate_percent","inflation_percent"],"properties":{"inflation_percent":{"type":"number","default":2,"maximum":1000,"minimum":-99,"description":"Percent units: enter 5 for 5%, not 0.05"},"nominal_rate_percent":{"type":"number","default":5,"maximum":1000,"minimum":-99,"description":"Percent units: enter 5 for 5%, not 0.05"}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6OvTo7JMPnWt5wVfJJVyS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the exact real interest rate from a nominal interest rate and inflation rate for a single input record, returning the formula, units, and limitations as JSON.","exampleAgentPrompt":"Calculate the exact real interest rate for me — the nominal rate is 6% and the inflation rate is 2.5%.","exampleUseCases":[{"title":"Bond real yield sanity check","prompt":"What's the exact real interest rate on a bond with a 4.5% nominal rate and 3% inflation? Show me the formula too."},{"title":"Savings account inflation adjustment","prompt":"My savings account pays 3.8% nominal interest and inflation is running at 4.1% — what's my actual real interest rate after adjusting for inflation?"},{"title":"Cross-country rate comparison","prompt":"I need to compare real returns: calculate the exact real interest rate when the nominal rate is 7% and inflation is 1.5%."}],"resultDescription":"A JSON object containing the calculated exact real interest rate, the mathematical formula used, the units of the result, and any known limitations of the calculation for the supplied input values.","failureModes":["Missing required fields (nominal_rate_percent or inflation_percent) returns a validation error","Values outside allowed range (-99 to 1000 percent) are rejected","Non-numeric input types cause schema validation failure","Payment not completed (x402) results in a 402 response with no calculation"],"whenToPreferThis":"Use this endpoint when you need a single, precise real interest rate calculation with the formula and units explicitly returned — ideal for agents that must show their work or verify the mathematical basis of the result. Prefer this over rolling or batch endpoints when only one record needs processing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T13:07:00.150Z","isFirstParty":false,"canonicalSlug":"exact-real-interest-rate-single-calculation-9fd1a36b"}