StationFX

Benchmark long-term U.S. government borrowing rate. Anchors mortgage rates, corporate bond yields, and equity discount rates. Widely used as the risk-free rate in financial models. Critical for duration risk, equity valuation, and global capital flow analysis. Daily frequency, 60+ year history.

Open endpoint ↗

Price per call: $0.005
Chain: Base
Method: GET
Paid calls · 30 days: 10

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://stationfx.com/economic-data/interest-rates/market-yield-on-u-s-treasury-securities-at-10-year-constant-maturity-quoted-on-an-investment-basis", { method: "GET" });
console.log(await res.json());

https://stationfx.com/economic-data/interest-rates/market-yield-on-u-s-treasury-securities-at-10-year-constant-maturity-quoted-on-an-investment-basis