US Treasury daily yield curve · Treasury Yield Curve

by US Treasury daily yield curve

GETBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

$0.005

per call · USD Coin on Base

Latest US Treasury daily constant-maturity yields (1mo, 3mo, 6mo, 1y, 2y, 3y, 5y, 7y, 10y, 20y, 30y) as clean JSON. Source: FRED DGS* series (St. Louis Fed), public domain, no key. No params - always returns the most recent published curve.

Endpoint

GET https://agent402.tools/api/treasury-yield-curve

63

Calls / 30d

3

Unique payers / 30d

Sep 10

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/treasury-yield-curve", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://agent402.tools/api/treasury-yield-curve" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "mo1": 5.42,
  "mo3": 5.39,
  "recordDate": "2026-06-12",
  "yr1": 4.91,
  "yr10": 4.51,
  "yr2": 4.78,
  "yr30": 4.68,
  "yr5": 4.45
}

Payment details

Pay to0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Schemesexact, upto

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