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US Treasury Interest Costs
x402
US Treasury Interest Costs is a paid API for AI agents from us-treasury-interest.use.x402atlas.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Returns the latest monthly average interest rates the US Treasury pays on its outstanding debt, broken down by security type (T-bills, Notes, Bonds, TIPS, FRNs, savings securities, and total).
Price / call$0.01
Success—
StatusUnknown
How this service works
US Treasury interest rates — latest monthly average rates on outstanding government debt, including Treasury bills, notes, bonds, TIPS, floating-rate notes and savings securities. Track federal borrowing costs and compare rates across security classes.
Output
Returns a JSON object containing the record date (month-end YYYY-MM-DD), a count of rates returned, and an array of rate objects — each with security_type (Marketable, Non-marketable, or Interest-bearing Debt), security name (e.g. Treasury Bills, Treasury Notes, TIPS, FRNs, savings securities), and avg_interest_rate_pct as a decimal percentage.
Example use cases
Tracking government borrowing cost trend
“What average interest rate is the US Treasury currently paying across all its interest-bearing debt? I want to see a breakdown by security type for the latest month.”
Fixed income research on T-bill rates
“Can you pull the current average interest rate the Treasury is paying on T-bills? I'm comparing short-term government borrowing costs for a fixed income report.”
Monitoring inflation impact on TIPS rates
“What's the latest average interest rate the Treasury is paying on TIPS? I want to see how inflation-adjusted debt costs have moved.”
Technical details
Endpoint
GEThttps://us-treasury-interest.use.x402atlas.com/latest?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need official, current US Treasury average interest rate data by security type in a single lightweight call. Prefer it over scraping Treasury websites or using generic financial data APIs when you specifically need the government's own reported cost-of-borrowing figures segmented by debt instrument (T-bills, Notes, Bonds, TIPS, FRNs, savings securities).
Side effects
- Service unavailable if upstream Fiscal Data API is down or rate-limited
- Payment failure if USDC balance is insufficient for the $0.01 fee
- Stale data if the Treasury has not yet published the latest month's figures
- Empty or partial rates array if upstream data is incomplete for the current period
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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