{"x402Version":2,"name":"Finance Calculator","description":"Financial math — loan amortization, simple/compound interest, future & present value, NPV and IRR.","version":"0.1.0","openapi":"https://finance.openverbs.com/openapi.json","resources":[{"url":"https://finance.openverbs.com/v1/loan","method":"POST","description":"Compute the level monthly payment, total paid and total interest of a fully-amortizing loan. Handles a 0% rate. Set schedule=true to also return the full month-by-month amortization table.","tags":["loan amortization","mortgage payment calculator","monthly loan payment","amortization schedule","total loan interest","loan calculator api"],"accepts":[{"scheme":"exact","network":"eip155:8453","price":"$0.004","payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","asset":"USDC"}]},{"url":"https://finance.openverbs.com/v1/interest","method":"POST","description":"Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly).","tags":["compound interest calculator","simple interest calculator","grow principal","interest over time","monthly compounding api","calculate interest"],"accepts":[{"scheme":"exact","network":"eip155:8453","price":"$0.004","payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","asset":"USDC"}]},{"url":"https://finance.openverbs.com/v1/future-value","method":"POST","description":"Future value of a present sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due (payments at the start of each period).","tags":["future value calculator","annuity future value","fv financial formula","investment growth projection","payments to future value","future value api"],"accepts":[{"scheme":"exact","network":"eip155:8453","price":"$0.004","payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","asset":"USDC"}]},{"url":"https://finance.openverbs.com/v1/present-value","method":"POST","description":"Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due.","tags":["present value calculator","annuity present value","pv financial formula","discount future cashflow","payments to present value","present value api"],"accepts":[{"scheme":"exact","network":"eip155:8453","price":"$0.004","payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","asset":"USDC"}]},{"url":"https://finance.openverbs.com/v1/npv","method":"POST","description":"Net present value of a series of cash flows discounted at a per-period rate. cashflows[0] is the time-0 flow (typically the initial outlay, negative).","tags":["net present value","npv calculator","discount cash flows","investment npv api","cashflow valuation","present value of cashflows"],"accepts":[{"scheme":"exact","network":"eip155:8453","price":"$0.004","payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","asset":"USDC"}]},{"url":"https://finance.openverbs.com/v1/irr","method":"POST","description":"Internal rate of return (per period) of a series of cash flows, solved with a bounded bisection. Requires at least one positive and one negative flow; flows with no sign change or no bracketable root are rejected as a clean 400.","tags":["internal rate of return","irr calculator","cashflow return rate","investment irr api","solve discount rate","project return percentage"],"accepts":[{"scheme":"exact","network":"eip155:8453","price":"$0.004","payTo":"0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A","asset":"USDC"}]}]}