Us Federal Register

{
  "documents": [
    {
      "agencies": [
        "Treasury Department",
        "Foreign Assets Control Office"
      ],
      "date": "2026-09-30",
      "link": "https://www.federalregister.gov/documents/2026/09/30/2026-20009/publication-of-venezuela-sanctions-regulations-web-general-licenses-46d-47b-48c-50c-51c-52b-54b-and",
      "summary": "The Department of the Treasury's Office of Foreign Assets Control (OFAC) is publishing eight general licenses (GLs) issued pursuant to the Venezuela Sanctions Regulations: GLs 46D, 47B, 48C, 50C, 51C, 52B, 54B, and 61A, each of which was previously made available on OFAC's website.",
      "title": "Publication of Venezuela Sanctions Regulations Web General Licenses 46D, 47B, 48C, 50C, 51C, 52B, 54B, and 61A",
      "type": "Rule"
    },
    {
      "agencies": [
        "Treasury Department",
        "Foreign Assets Control Office"
      ],
      "date": "2026-09-30",
      "link": "https://www.federalregister.gov/documents/2026/09/30/2026-20008/publication-of-venezuela-sanctions-regulations-web-general-licenses-52-53-54-55-56-57-and-58",
      "summary": "The Department of the Treasury's Office of Foreign Assets Control (OFAC) is publishing seven general licenses (GLs) issued pursuant to the Venezuela Sanctions Regulations: GLs 52, 53, 54, 55, 56, 57, and 58, each of which was previously made available on OFAC's website.",
      "title": "Publication of Venezuela Sanctions Regulations Web General Licenses 52, 53, 54, 55, 56, 57, and 58",
      "type": "Rule"
    }
  ],
  "source": "Federal Register (federalregister.gov, US public domain)",
  "topic": "digital asset",
  "total_matches": 308,
  "type": "todos"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/v1/us-federal-register' \
  -H 'content-type: application/json' \
  --data-raw '{"days":365,"limit":6,"term":"digital asset"}'

# 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://api.vextorium.com/v1/us-federal-register' \
  -H 'content-type: application/json' \
  --data-raw '{"days":365,"limit":6,"term":"digital asset"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fv1%2Fus-federal-register&method=POST
const res = await pay("https://api.vextorium.com/v1/us-federal-register", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "days": 365,
    "limit": 6,
    "term": "digital asset"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/v1/us-federal-register",
        json={
            "days": 365,
            "limit": 6,
            "term": "digital asset",
        },
    )
    print(res.status_code, res.text)