{"uid":"cap_beSJMV_Ii5XFt3zv8cUfz","slug":"agenttools-compound-interest-calculator-b3a9b07b","name":"AgentTools Compound Interest Calculator","description":"Project the future value of a deposit with compound interest: choose annual, semi-annual, quarterly, monthly, weekly or daily compounding and see total interest earned. Use this when an agent needs to future value with any compounding frequency.","url":"https://agentstoolshub.com/api/v1/calculators/compound-interest-calculator?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["principal","annualRate","years"],"properties":{"years":{"type":"number","description":"Years"},"principal":{"type":"number","description":"Principal"},"annualRate":{"type":"number","description":"Annual rate %"},"timesPerYear":{"enum":[1,2,4,12,52,365],"type":"number","description":"Compounding"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jZHrRQBXXKRNfMrHBJnva","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the future value of a deposit with compound interest, supporting annual, semi-annual, quarterly, monthly, weekly, or daily compounding frequencies.","exampleAgentPrompt":"What will $10,000 grow to if I deposit it at a 5% annual interest rate for 7 years, compounded monthly? Show me the total interest earned too.","exampleUseCases":[{"title":"Savings account growth projection","prompt":"I'm putting $25,000 into a high-yield savings account at 4.5% annual interest. How much will it be worth after 5 years if it compounds daily?"},{"title":"Retirement nest egg estimate","prompt":"If I invest $50,000 today at a 7% annual rate compounded quarterly, what will that be worth when I retire in 30 years, and how much of that is interest?"},{"title":"Comparing compounding frequencies","prompt":"I have $15,000 to deposit at 6% annual interest for 10 years — what's the future value if it compounds annually versus monthly?"}],"resultDescription":"Returns the projected future value of the deposit, the total interest earned, and the compounding details based on the principal, annual rate, duration, and selected compounding frequency (annual=1, semi-annual=2, quarterly=4, monthly=12, weekly=52, or daily=365).","failureModes":["Missing required parameters (principal, annualRate, or years) returns a 400 error","Invalid compounding frequency (not in [1,2,4,12,52,365]) causes a validation error","Negative or zero principal or rate values may return an error or unexpected result","Non-numeric inputs for numeric fields return a schema validation error"],"whenToPreferThis":"Use this endpoint when you need a precise compound interest calculation with a specific compounding frequency (not just simple interest). Prefer this over simple interest calculators when the user specifies a compounding period, and over generic financial APIs when you need a lightweight, single-purpose computation without authentication overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:49:05.725Z","isFirstParty":false,"canonicalSlug":"agenttools-compound-interest-calculator-b3a9b07b"}