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fastapi.online — Bond Yields Calculator
x402
fastapi.online — Bond Yields Calculator is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-13).
Calculates bond yield metrics via a self-hosted finance calculator endpoint, priced per call with crypto.
Price / call$0.002
Success—
StatusUnknown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
Returns computed bond yield metrics such as yield to maturity (YTM), current yield, or related financial calculations based on the bond parameters provided.
Example use cases
Bond investment yield check
“I'm looking at a corporate bond priced at $920 with a $1000 face value, 6% annual coupon, and 7 years left to maturity — what's the yield to maturity?”
Portfolio fixed-income analysis
“Can you compute the current yield and YTM for a government bond with face value $5000, coupon rate 3.5%, current market price $4850, and 5 years remaining?”
Bond pricing vs yield tradeoff
“I want to understand the yield on a bond I'm considering — it has a $1000 par value, pays a 4% coupon annually, and is currently trading at $1050 with 3 years to maturity.”
Technical details
Endpoint
POSThttps://api.fastapi.online/yields?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, per-call bond yield computation without subscribing to a full financial data platform. Ideal for agents that need on-demand fixed-income math without API keys or monthly fees, paying only $0.002 USDC per calculation.
Side effects
- Missing required bond input parameters returns a validation error
- Invalid numeric values (negative price, zero maturity) may cause computation errors
- Malformed JSON body returns 400 bad request
- Network or server unavailability returns 5xx error
- Insufficient USDC payment causes 402 payment required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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