Official Macro & FX Data

Use when an agent needs US government bond yields, a risk-free rate or the yield curve (e.g. 2Y/10Y spread, recession signal, discounting): official US Treasury daily par yield curve, 1 month to 30 years, latest or any day since 1990 (weekends/holidays return the previous business day). Includes 10Y-2Y and 10Y-3M spreads. Source named in every answer. Bad input: HTTP 400 before payment; outage is

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: GET
Paid calls · 30 days: 6

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://x402-apis.pages.dev/v1/treasury-yields", { method: "GET" });
console.log(await res.json());

https://x402-apis.pages.dev/v1/treasury-yields