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x402toll Bond Yield Calculator
x402
x402toll Bond Yield Calculator is a paid API for AI agents from x402toll.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Calculates current yield and yield-to-maturity for a bond given face value, coupon rate, market price, and maturity, and classifies it as trading at a premium, discount, or par.
Price / call$0.05
Success—
StatusUnknown
How this service works
Bond current yield and yield-to-maturity from face value, coupon, market price, and maturity — with the premium/discount/par classification.
Output
Returns the bond's current yield (annual coupon divided by market price), yield-to-maturity (annualized total return if held to maturity), and a classification of whether the bond is trading at a premium (price above face value), discount (price below face value), or par (price equals face value).
Example use cases
Example prompt
“Calculate the yield to maturity and current yield for a bond with a $1,000 face value, 6% annual coupon rate paid semi-annually, currently priced at $920, with 8 years left to maturity — and tell me whether it's trading at a premium, discount, or par.”
Technical details
Endpoint
POSThttps://x402toll.com/v1/investing/bond-yieldWhen to prefer
Use this endpoint when you need a precise, formula-based bond yield computation including both current yield and YTM with a premium/discount/par classification — especially when building financial tools, answering investor questions about fixed income returns, or evaluating whether a bond is fairly priced relative to its face value.
Side effects
- Missing required fields (price, couponRatePct, yearsToMaturity) returns a validation error
- yearsToMaturity below 0.5 or above 100 rejected as out of range
- couponRatePct outside 0–100 range returns validation error
- Non-numeric inputs for numeric fields cause a 400 error
- Insufficient USDC payment (< $0.05) causes a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| price | number | |
| faceValue | number | |
| couponRatePct | number | |
| paymentsPerYear | number | |
| yearsToMaturity | number |
Tags
x402
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