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Financial Data x402 – Yield Curve
x402
Financial Data x402 – Yield Curve is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns the current US Treasury yield curve across maturities (1mo to 30yr), with key spreads and inversion status, pay-per-call via x402.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.
Output
A JSON object containing: the as-of date, yield rates for 8 standard Treasury maturities (1mo, 3mo, 6mo, 1yr, 2yr, 5yr, 10yr, 30yr), the 10y-2y and 10y-3mo spread in percentage points, boolean inversion flags for each spread pair, per-maturity data dates, and a list of any maturities that failed to fetch.
Example use cases
Checking yield curve inversion for recession signal
“Is the US Treasury yield curve inverted right now? I want to know both the 10y-2y and 10y-3mo spreads and whether either one has flipped.”
Daily macro briefing for portfolio review
“Give me a snapshot of where Treasury yields are sitting today across all maturities — 1-month through 30-year — so I can factor that into my morning portfolio review.”
Monitoring rate environment for bond strategy
“What's the current shape of the yield curve? I'm deciding between short- and long-duration bonds and need to see where each maturity is yielding as of today.”
Technical details
Endpoint
GEThttps://x402financialdata.com/yield-curveWhen to prefer
Choose this endpoint when you need live, point-in-time US Treasury yield curve data including inversion signals, without a subscription or API key. Ideal for AI agents making pay-per-call macro lookups via the x402 protocol using USDC on Base or Solana. Prefer over Bloomberg/Refinitiv integrations when low-cost, frictionless access to yield curve snapshots is needed for automated workflows.
Side effects
- Stale or missing data for one or more maturities — listed in failed_maturities array
- Payment not processed — x402 micropayment rejected or insufficient USDC balance
- Treasury data source temporarily unavailable — may return partial curve
- Network timeout — endpoint unreachable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-07-23",
"curve": {
"1mo": 3.82,
"1yr": 4.15,
"2yr": 4.37,
"3mo": 3.95,
"5yr": 4.46,
"6mo": 4.09,
"10yr": 4.71,
"30yr": 5.17
},
"spreads": {
"10y_minus_2y_pct": 0.34,
"10y_minus_3mo_pct": 0.76
},
"inverted": {
"10y_2y": false,
"10y_3mo": false
},
"curve_dates": {
"1mo": "2026-07-23",
"1yr": "2026-07-23",
"2yr": "2026-07-23",
"3mo": "2026-07-23",
"5yr": "2026-07-23",
"6mo": "2026-07-23",
"10yr": "2026-07-23",
"30yr": "2026-07-23"
},
"failed_maturities": []
}
}Tags
x402
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