{"slug":"agent402-tools-api-npv-cd5837","title":"Compute the net present value of a stream of cashflows at a given discount rate","host":"agent402.tools","method":"POST","resource":"https://agent402.tools/api/npv","category":"other","description":"Compute the net present value of a stream of cashflows at a given discount rate. Index 0 is treated as t=0 (today, not discounted); indices 1..n are discounted by (1+rate)^t. Matches Excel's NPV but with the conventional t=0 treatment most finance textbooks use (Excel itself starts discounting at t=","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":921,"reported_calls_30d":5,"reported_payers_30d":1,"networks":["algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","eip155:10","eip155:1329","eip155:137","eip155:143","eip155:42161","eip155:42220","eip155:43114","eip155:4663","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","stellar:pubnet"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"cashflows":[-1000,300,400,500,600],"discountRate":0.1},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"cashflows":{"description":"Array of cashflows. Index 0 = t=0 (today, not discounted). Negative = outflow, positive = inflow. 2-1200 elements.","type":"array"},"discountRate":{"description":"Per-period discount rate as decimal (0.1 = 10%)","type":"number"}},"required":["cashflows","discountRate"]},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"discountRate":{"type":"number"},"npv":{"type":"number"},"presentValues":{"items":{"type":"number"},"type":"array"},"undiscountedSum":{"type":"integer"}},"required":["npv","discountRate","presentValues","undiscountedSum"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":921,"error":null}],"description_full":"Compute the net present value of a stream of cashflows at a given discount rate. Index 0 is treated as t=0 (today, not discounted); indices 1..n are discounted by (1+rate)^t. Matches Excel's NPV but with the conventional t=0 treatment most finance textbooks use (Excel itself starts discounting at t=1 - see notes). Use for capital-budgeting decisions: positive NPV = creates value at the discount rate; negative = destroys value.","last_updated":"2026-09-21T11:10:40.5Z","schemes":["exact","upto"]}