US Treasury Par Yield Curve API

x402

US Treasury Par Yield Curve API is a paid API for AI agents from gateway.stride20k.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Returns the latest Daily Treasury Par Yield Curve with yields in percent for 13 maturities (1 month to 30 years) as published by the US Department of the Treasury

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

US Treasury yield curve API: the latest Daily Treasury Par Yield Curve — yields in percent for 13 maturities from 1 month to 30 years, plus curve date, straight from the US Department of the Treasury. Public-domain government data, published each business day. Use for interest rate benchmarks, bond analysis, discount rates, and macro signals. Slow upstream (~10s) so served from a 6-hour cache; meta.fetchedAt shows when the curve was retrieved.

Output

A JSON object with ok: true, plus a data object containing curveDate (YYYY-MM-DD business date), yieldsPct (par yields in percent keyed by maturity: 1M, 2M, 3M, 4M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, 30Y), and a meta object with the upstream source (US Treasury), a cached flag, and fetchedAt (ISO 8601 timestamp of last upstream fetch). Responses are cached up to 6 hours.

Example use cases

Example prompt

“What are today's US Treasury par yields across all maturities — from 1 month out to 30 years — so I can use them as discount rates in my valuation model?”

Technical details

Endpoint

GEThttps://gateway.stride20k.com/rates/us-treasury?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need the official, authoritative US Treasury par yield curve published by the US government — ideal for risk-free rate benchmarks, DCF discount rates, bond spread analysis, or macro interest rate signals. Prefer this over scraped or third-party yield data sources when government provenance and auditability matter. The 6-hour cache makes it practical for intraday use without repeated slow upstream fetches.

Side effects

Upstream Treasury site slow or unavailable — stale cache may be returned or upstream timeout error
Treasury does not publish data on weekends/holidays — curveDate will reflect last business day
Cache miss on cold start may result in ~10s response latency
Non-2xx HTTP status if payment (x402) is not satisfied

Input

Schema · Request body

Field	Type	Description
properties	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "data": {
      "series": "Daily Treasury Par Yield Curve Rates",
      "curveDate": "2026-07-02",
      "yieldsPct": {
        "1M": 3.7,
        "1Y": 3.96,
        "2Y": 4.14,
        "3M": 3.82,
        "5Y": 4.23,
        "6M": 3.98,
        "10Y": 4.49,
        "30Y": 4.98
      }
    },
    "meta": {
      "cached": false,
      "source": "US Treasury",
      "fetchedAt": "2026-07-04T00:00:00.000Z",
      "attribution": null
    },
    "endpoint": "/rates/us-treasury"
  }
}

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