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Mercury402 Treasury Yield Curve Daily Snapshot
x402
Mercury402 Treasury Yield Curve Daily Snapshot is a paid API for AI agents from mercury402.uk, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Returns the full US Treasury yield curve (all maturities) for a specific date as a JSON object of rates
Price / call$0.05
Success—
StatusUnknown
How this service works
76 live pay-per-call financial data APIs for AI agents. Treasury, FRED, forex, spreads, breakeven inflation, macro bundles, and composite dashboards. USDC on Base.
Output
A JSON object containing the requested date and a rates map keyed by maturity (e.g. 1_MONTH, 3_MONTH, and longer tenors) with annualized yield percentages for each maturity on that day
Example use cases
Example prompt
“Can you pull the full US Treasury yield curve snapshot for March 11, 2026 — I need the rates across all maturities for that specific date.”
Technical details
Endpoint
GEThttps://mercury402.uk/v1/treasury/yield-curve/daily-snapshotWhen to prefer
Use this endpoint when you need the complete US Treasury yield curve for a single specific date — ideal for historical research, backtesting, spread calculations, or checking rate levels on a particular day. Prefer this over macro bundles when you only need Treasury rates and want minimal cost per call.
Side effects
- Date not found or market holiday — rates may be unavailable for weekends/holidays
- Invalid date format returns a 400 or error response
- Future dates return no data or an error
- Payment not processed — 402 response requiring USDC payment on Base to proceed
- Rate limiting or temporary upstream data unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| date | string | Specific date for yield curve (YYYY-MM-DD) |
Output
Schema · Response
{
"type": "json",
"example": {
"date": "2026-03-11",
"rates": {
"1_MONTH": 5.42,
"3_MONTH": 5.38
}
}
}Tags
x402
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