https://x402.donnyautomation.com/treasuryGET /treasury · x402 API by x402
US Treasury par yield curve API - every constant-maturity rate from 1 month to 30 years for any published business day, plus the spreads nobody wants to compute themselves. 2s10s, 3m10y and 5s30s are returned with an explicit inversion flag, because the real question is whether the curve is inverted, not what fourteen numbers are. A tenor Treasury did not publish that day is null, never zero. For macro, rates, credit and risk agents.
What does this x402 API do?
https://x402.donnyautomation.com/treasury. This is an x402-gated GET API resource from x402. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-05. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-05
- Resource ID
- 1fbb46e9db57b1403c39f889
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://x402.donnyautomation.com/treasury", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://x402.donnyautomation.com/ returned 302.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.