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US Treasury Average Interest Rates by Security Type
x402
US Treasury Average Interest Rates by Security Type is a paid API for AI agents from agent402.tools, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns the latest average interest rates the US Treasury is paying, broken down by security type (Bills, Notes, Bonds, TIPS, FRNs, marketable vs non-marketable).
Price / call$0.005
Success—
StatusUnknown
How this service works
Latest average interest rates the US Treasury is paying by security type (Bills, Notes, Bonds, TIPS, FRNs, marketable vs non-marketable). Public domain, no key. No params - returns the most recent reporting month.
Output
A structured breakdown of the most recent month's average interest rates the US Treasury is paying across security types: Treasury Bills, Notes, Bonds, TIPS (Treasury Inflation-Protected Securities), FRNs (Floating Rate Notes), and totals for marketable vs non-marketable securities.
Example use cases
Example prompt
“What average interest rates is the US Treasury currently paying on its Bills, Notes, Bonds, TIPS, and FRNs — both marketable and non-marketable — for the most recent reporting month?”
Technical details
Endpoint
GEThttps://agent402.tools/api/treasury-avg-ratesWhen to prefer
Use this endpoint when you need a quick, no-parameter lookup of the current average interest rates the US Treasury pays on its debt obligations, broken down by all major security types. Ideal for macroeconomic analysis, fixed income research, or any workflow that needs authoritative government debt cost data without requiring date or filter parameters.
Side effects
- Service unavailable or upstream Treasury data source is down (5xx error)
- Payment failure or insufficient USDC balance (402 error)
- Data not yet updated for the current month — returns prior month's data
- Malformed response if Treasury source changes its data format
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"rates": [
{
"security": "Treasury Notes",
"securityType": "Marketable",
"avgInterestRatePct": 2.85
}
],
"recordDate": "2026-05-31"
}
}Tags
x402
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