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US Treasury Yield Curve (Latest Daily)
x402
US Treasury Yield Curve (Latest Daily) is a paid API for AI agents from agent402.tools, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).
Returns the latest US Treasury daily constant-maturity yields across 11 maturities (1mo to 30y) as clean JSON, sourced from FRED DGS series.
Price / call$0.01
Success—
StatusUnknown
How this service works
Latest US Treasury daily constant-maturity yield curve in one object: recordDate plus mo1, mo3, mo6, yr1, yr2, yr3, yr5, yr7, yr10, yr20 and yr30, each a yield in percent. Source: FRED DGS* series (St. Louis Fed), public domain. No params - always returns the most recent published curve, which trails today by a business day or two; for a date range use treasury-yield-history.
Output
A JSON object containing the most recently published US Treasury daily constant-maturity yields for 11 maturities: 1mo, 3mo, 6mo, 1y, 2y, 3y, 5y, 7y, 10y, 20y, and 30y, along with the date of the data point, sourced from FRED DGS series.
Example use cases
Example prompt
“What are the latest US Treasury constant-maturity yields across all maturities — the full yield curve from 1-month to 30-year?”
Technical details
Endpoint
GEThttps://agent402.tools/api/treasury-yield-curve?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the full current US Treasury yield curve in a single call with no API key, no parameters, and no setup. Ideal for financial agents that need risk-free rate benchmarks, yield spread calculations, or macroeconomic snapshots. Prefer over direct FRED API calls when you want a zero-config, always-current, clean JSON response without managing API credentials.
Side effects
- FRED data not yet published for current business day — returns most recently available prior date
- Non-trading days (weekends/holidays) return last available trading day data
- Service unavailable or x402 payment failure returns HTTP 402 or 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"mo1": 3.97,
"mo3": 4.16,
"mo6": 4.26,
"yr1": 4.43,
"yr2": 4.71,
"yr3": 4.81,
"yr5": 4.83,
"yr7": 4.89,
"unit": "percent",
"yr10": 4.96,
"yr20": 5.33,
"yr30": 5.29,
"source": "FRED DGS* constant-maturity series (St. Louis Fed)",
"recordDate": "2026-09-22"
}
}Tags
x402
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