{"name":"simple_interest","title":"Simple Interest Calculator","category":"finance","description":"Non-compounding interest and total from principal, rate and years.","price_usd":0.001,"input_schema":{"type":"object","properties":{"principal":{"type":"number","description":"Principal in USD"},"annual_rate_pct":{"type":"number","description":"Annual rate as a percent (5 = 5%)"},"years":{"type":"number","description":"Number of years"}},"additionalProperties":false,"required":["principal","annual_rate_pct","years"]}}