{"slug":"finance-openverbs-com-v1-interest-b8de43","title":"Grow a principal by simple or compound interest over a number of years","host":"finance.openverbs.com","method":"POST","resource":"https://finance.openverbs.com/v1/interest","category":"other","description":"Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly).","price_listed":0.004,"price_asked":0.004,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":471,"reported_calls_30d":3,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"annualRatePercent":1,"compoundsPerYear":1,"method":"simple","principal":1,"years":1},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"annualRatePercent":{"description":"Annual interest rate as a percentage.","maximum":1000,"minimum":0,"type":"number"},"compoundsPerYear":{"description":"Compounding periods per year (compound only). Default 12.","maximum":365,"minimum":1,"type":"integer"},"method":{"description":"Interest method. Default compound.","enum":["simple","compound"],"type":"string"},"principal":{"description":"Starting principal.","maximum":1000000000000000,"minimum":0,"type":"number"},"years":{"description":"Number of years.","maximum":1000,"minimum":0,"type":"number"}},"required":["principal","annualRatePercent","years"],"type":"object"},"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"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.004,"price_match":true,"latency_ms":471,"error":null}],"description_full":"Grow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly).","last_updated":"2026-09-06T08:10:14.706Z","schemes":["exact"]}