Latest

{
  "changes": "x402Atlas selects series, normalizes field names and sorts effective dates; original rate values are unchanged. Omitted optional metadata is null; no interpolation. Original data is freely available from the source and retains the same permissions, conditions and restrictions under its Terms of Use. The fee is for API integration.",
  "disclaimer": "x402Atlas is not affiliated with the New York Fed. The New York Fed does not sanction, endorse, or recommend any products or services offered by x402Atlas.",
  "notice": "The Secured Overnight Financing Rate and Effective Federal Funds Rate data are subject to the Terms of Use posted at newyorkfed.org. The New York Fed is not responsible for publication of these data by x402Atlas, does not endorse any particular republication, and has no liability for your use.",
  "operation": "latest",
  "retrieved_at": "2024-01-08T14:00:00Z",
  "schema_version": "1",
  "series": [
    {
      "alias": "sofr",
      "frequency": "business_daily",
      "name": "Secured Overnight Financing Rate",
      "observations": [
        {
          "date": "2024-01-05",
          "source_footnote_id": null,
          "source_revision_indicator": "",
          "target_lower_percent": null,
          "target_upper_percent": null,
          "value": 5.31,
          "volume_usd_billions": 1674
        }
      ],
      "source_id": "SOFR",
      "unit": "percent_per_annum"
    },
    {
      "alias": "effr",
      "frequency": "business_daily",
      "name": "Effective Federal Funds Rate",
      "observations": [
        {
          "date": "2024-01-05",
          "source_footnote_id": null,
          "source_revision_indicator": "",
          "target_lower_percent": 5.25,
          "target_upper_percent": 5.5,
          "value": 5.33,
          "volume_usd_billions": 84
        }
      ],
      "source_id": "EFFR",
      "unit": "percent_per_annum"
    }
  ],
  "source": "Federal Reserve Bank of New York",
  "source_url": "https://www.newyorkfed.org/markets/reference-rates",
  "terms_url": "https://www.newyorkfed.org/privacy/termsofuse.html",
  "warnings": []
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://us-rates.use.x402atlas.com/latest'

# 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 - 'https://us-rates.use.x402atlas.com/latest' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fus-rates.use.x402atlas.com%2Flatest
const res = await pay("https://us-rates.use.x402atlas.com/latest");
console.log(res.status, await res.text());

# 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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://us-rates.use.x402atlas.com/latest")
    print(res.status_code, res.text)