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US Treasury Yields and CPI
x402
US Treasury Yields and CPI is a paid API for AI agents from api.stablecoingateways.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).
Returns the US Treasury par yield curve (1-month to 30-year) plus BLS inflation and labor market indicators for the last 13 months with year-over-year changes
Price / call$0.002
Success—
StatusUnknown
How this service works
US Treasury yields and inflation data: daily Treasury par yield curve (1-month to 30-year) plus BLS CPI, core CPI, unemployment rate and nonfarm payrolls for the last 13 months with year-over-year change. Use when a finance agent needs current US interest rates, inflation or jobs data. Sources: US Treasury, BLS (public). Signed receipt.
Output
A JSON object containing the US Treasury par yield curve (latest date, one-week-earlier snapshot, and recent daily history), BLS series data (CPI, core CPI, unemployment rate, nonfarm payrolls) covering the last 13 months with year-over-year changes, cache timestamps for BLS and Treasury sources, and an Ed25519-signed receipt including endpoint ID, request and response hashes, USDC price paid, and transaction hash for verification.
Example use cases
Live yield curve for bond strategy
“What does the US Treasury yield curve look like right now? Give me all maturities from 1-month to 30-year so I can assess whether the curve is inverted.”
Inflation dashboard for macro report
“I'm building a weekly macro summary — can you get me the latest BLS CPI, core CPI, and nonfarm payrolls data including year-over-year changes?”
Rate environment check before loan pricing
“Before I finalize loan pricing, what are the current US benchmark interest rates and where does inflation stand right now according to BLS?”
Technical details
Endpoint
GEThttps://api.stablecoingateways.com/v1/us/rates-macro?utm_source=zero.xyzWhen to prefer
Choose this endpoint when a finance or macro agent needs authoritative, current US interest rate and inflation data in a single call with a cryptographically verifiable receipt. It is ideal over web scraping or manual lookups because it aggregates Treasury and BLS public data into a structured, signed response. Prefer it over general financial data APIs when you specifically need the official Treasury par yield curve alongside BLS CPI, core CPI, unemployment, and payrolls in one request with an audit trail.
Side effects
- Upstream BLS or Treasury data unavailable — response may return stale cached data with cache timestamps indicating age
- Invalid series parameter value returns a 400 error
- Payment not received or insufficient — 402 Payment Required returned before data is served
- Treasury data delayed on non-business days or federal holidays — latest date may lag by one or more days
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"cpi": {
"series_id": "CUUR0000SA0",
"observations": [
{}
]
},
"series": [
"treasury"
],
"sources": [
"U.S. Department of the Treasury, Daily Treasury Par Yield Curve Rates (public)"
],
"treasury_par_yield_curve": {
"latest": {
"date": "2026-10-21",
"par_yields_pct": {}
},
"recent": [
{}
],
"one_week_earlier": {
"date": "2026-10-14",
"par_yields_pct": {}
}
},
"retrieved_from_cache_as_of": {
"bls": "2026-09",
"treasury": "2026-10-21"
}
},
"receipt": {
"v": 1,
"ts": "2026-10-22T09:00:00Z",
"sig": "hex",
"price": {
"asset": "USDC",
"amount": "2000",
"network": "eip155:84532"
},
"log_seq": 1,
"tx_hash": "0x..",
"endpoint_id": "us-rates-macro-v1",
"request_hash": "hex",
"response_hash": "hex"
}
}
}Tags
x402
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