ToolVet
78trust / 100

Execute Federal Register Search V1

by Macaroon Network in Search & web

x402 APIPassing, checked 4 h ago

Search U.S. federal regulatory documents -- final rules, proposed rules, notices, and presidential documents -- by keyword, document type, issuing agency, and publication date range. The only source used is the Federal Register's own public API (federalregister.gov), published by the National Archives and Records Administration's Office of the Federal Register.

POST
https://api.macaroonnetwork.com/execute/federal-register-search-v1
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
253 ms
490 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

POST https://api.macaroonnetwork.com/execute/federal-register-search-v1

Each call costs $0.002 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://api.macaroonnetwork.com/execute/federal-register-search-v1
content-type: application/json

{
  "input": {
    "filters": {
      "document_type": "NOTICE",
      "limit": 5
    },
    "query": "recent EPA rules about emissions"
  },
  "predicate": {
    "conditions": [
      {
        "field": "$.results",
        "type": "count_gte",
        "value": 1
      }
    ],
    "type": "all"
  }
}

Example response

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

{
  "payload": {
    "notices": [],
    "query": {
      "filters": {},
      "query": ""
    },
    "results": []
  },
  "predicate_passed": true,
  "settled": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.macaroonnetwork.com/execute/federal-register-search-v1' \
  -H 'content-type: application/json' \
  --data-raw '{"input":{"filters":{"document_type":"NOTICE","limit":5},"query":"recent EPA rules about emissions"},"predicate":{"conditions":[{"field":"$.results","type":"count_gte","value":1}],"type":"all"}}'

# 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.macaroonnetwork.com/execute/federal-register-search-v1' \
  -H 'content-type: application/json' \
  --data-raw '{"input":{"filters":{"document_type":"NOTICE","limit":5},"query":"recent EPA rules about emissions"},"predicate":{"conditions":[{"field":"$.results","type":"count_gte","value":1}],"type":"all"}}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.macaroonnetwork.com%2Fexecute%2Ffederal-register-search-v1&method=POST
const res = await pay("https://api.macaroonnetwork.com/execute/federal-register-search-v1", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "input": {
      "filters": {
        "document_type": "NOTICE",
        "limit": 5
      },
      "query": "recent EPA rules about emissions"
    },
    "predicate": {
      "conditions": [
        {
          "field": "$.results",
          "type": "count_gte",
          "value": 1
        }
      ],
      "type": "all"
    }
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
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.macaroonnetwork.com/execute/federal-register-search-v1",
        json={
            "input": {
                "filters": {
                    "document_type": "NOTICE",
                    "limit": 5,
                },
                "query": "recent EPA rules about emissions",
            },
            "predicate": {
                "conditions": [
                    {
                        "field": "$.results",
                        "type": "count_gte",
                        "value": 1,
                    },
                ],
                "type": "all",
            },
        },
    )
    print(res.status_code, res.text)

Security scan

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