Treasury Rates

Last 30 days

Uptime

100%

Response time

26 ms typical, 26 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://api.agentstools.dev/treasury/rates?year=2026"

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentstools.dev%2Ftreasury%2Frates
const res = await pay("https://api.agentstools.dev/treasury/rates?year=2026");
console.log(await res.json());

Example input

{
  "year": 2026
}

Example output

{
  "attribution": [
    "Source: U.S. Department of the Treasury, Fiscal Data (public domain)"
  ],
  "average_interest_rates": {
    "rates": [
      {
        "avg_interest_rate": 3.706,
        "security": "Treasury Bills",
        "security_type": "Marketable"
      }
    ],
    "record_date": "2026-06-30",
    "unit": "percent"
  },
  "computed": {
    "inverted_2s10s": false,
    "spread_2s10s": 0.48
  },
  "par_yield_curve": {
    "date": "2026-07-09",
    "points": {
      "10y": 4.21,
      "2y": 3.73,
      "30y": 4.79
    },
    "unit": "percent"
  },
  "yield_curve_available": true
}

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