{"name":"bond_price","title":"Bond Price Calculator","category":"finance","description":"Fair value of a fixed-coupon bond given face value, coupon rate, market yield, and maturity.","price_usd":0.002,"input_schema":{"type":"object","properties":{"face_value":{"type":"number","description":"Face/par value (default 1000)"},"coupon_rate":{"type":"number","description":"Annual coupon rate as a decimal"},"market_rate":{"type":"number","description":"Annual market yield as a decimal"},"years":{"type":"number","description":"Years to maturity"},"frequency":{"type":"integer","description":"Coupons per year (default 2)"}},"additionalProperties":false,"required":["coupon_rate","market_rate","years"]}}