ToolVet
80trust / 100

Treasury Yield Curve

by Forest Markets in Markets & finance

x402 APIPassing, checked 37 min ago

Return the latest published U.S. Treasury Daily Treasury Par Yield Curve Rates snapshot across standard maturities from 1 month through 30 years. Forest normalizes one coherent official daily observation, reports missing Treasury tenors as null, and performs no forecast, interpolation, trading signal or secondary-market inference. Base mainnet USDC

POST https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
179 ms typical, 294 ms slowest 5%
Last check
37 min ago
Next check
any minute now

How to call it

POST https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve

Each call costs $0.003 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve
content-type: application/json

{}

Example response

The provider's example. We can't check it without paying.

Example response, 36 lines
{
  "capability": "treasury.yield-curve",
  "data": {
    "curve": {
      "10y": 1,
      "1_5m": 1,
      "1m": 1,
      "1y": 1,
      "20y": 1,
      "2m": 1,
      "2y": 1,
      "30y": 1,
      "3m": 1,
      "3y": 1,
      "4m": 1,
      "5y": 1,
      "6m": 1,
      "7y": 1
    },
    "freshness": "latest_published_daily_observation",
    "record_date": "2026-01-01",
    "request_count": 1,
    "source": "U.S. Department of the Treasury",
    "source_dataset": "daily_treasury_yield_curve",
    "source_month": "202601",
    "unit": "percent"
  },
  "meta": {
    "cache": "miss",
    "checked_at": "2026-01-01T00:00:00.000Z",
    "duration_ms": 0,
    "provider": "us-treasury"
  },
  "ok": true,
  "version": "1"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fhttp--forest-gas-station-mainnet--lcjl27p8lmjs.code.run%2Ftreasury%2Fyield-curve&method=POST
const res = await pay("https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/treasury/yield-curve",
        json={},
    )
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

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37 min agoPassed402246 ms$0.003
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