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US Treasury Yield Curve
x402
US Treasury Yield Curve is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Fetches the current or historical US Treasury yield curve with rates for multiple maturities (1-month through 30-year)
Price / call$0.002
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
A JSON object with the date of the yield curve and a 'curve' object mapping maturity labels (e.g. '1 Mo', '10 Yr', '30 Yr') to their corresponding yield rates as decimal percentages.
Example use cases
Daily yield curve snapshot for macro research
“What does the US Treasury yield curve look like today? Give me all the rates from 1-month to 30-year.”
Historical yield curve for bond valuation
“I need the Treasury yield curve for October 23, 2026 — specifically the 1-month, 10-year, and 30-year rates — to discount some cash flows.”
Yield curve inversion monitoring for trading strategy
“Is the Treasury yield curve currently inverted? Fetch the latest curve and tell me if short-term rates are above long-term rates.”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/treasury-yield-curve?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need US Treasury yield curve data across multiple maturities in a single call without setting up accounts or API keys. Ideal for AI agents needing risk-free rate data for financial modeling, bond pricing, or macro analysis, paid per-call in USDC with no subscription overhead.
Side effects
- Invalid or future date requested — may return empty or error
- Date with no treasury data (e.g. weekend/holiday) — may return null or nearest available date
- Service unavailable — HTTP 5xx from upstream data source
- Payment failure — x402 payment not processed correctly, returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"date": "10/23/2026",
"curve": {
"1 Mo": 4.11,
"10 Yr": 5,
"30 Yr": 5.33
}
}
}Tags
x402
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