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Agencies

by US Federal Agencies in Other

x402 APIPassing, checked 1 h ago

US federal agency directory — the Federal Register's agency slugs, names, short names and parent-child links, searchable by substring. Use to find the slug an agency filter needs, e.g. environmental-protection-agency for the EPA.

GET
https://us-regulations.use.x402atlas.com/agencies
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
399 ms
443 ms slowest 5%
Last check
Passed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://us-regulations.use.x402atlas.com/agencies

Each call costs $0.005 in USDC on Polygon, 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.

GET https://us-regulations.use.x402atlas.com/agencies?query=environmental

Parameters

ParameterTypeRequiredDescription
querystringYesSubstring of slug, name or short name, case-insensitive

Example response

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

{
  "agencies": [
    {
      "children": [],
      "name": "Environmental Protection Agency",
      "parent_slug": "",
      "short_name": "EPA",
      "slug": "environmental-protection-agency"
    }
  ],
  "as_of": "2026-10-21T10:00:00Z",
  "caveat": "Agency slugs are the Federal Register's identifiers; use them in the agency filter of the other routes.",
  "count": 1,
  "modified": true,
  "query": "environmental",
  "source": {
    "citation": "Source: Federal Register, federalregister.gov. Public domain. Normalized by x402 Atlas; not the official record.",
    "name": "Federal Register (Office of the Federal Register, NARA; GPO)",
    "url": "https://www.federalregister.gov"
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://us-regulations.use.x402atlas.com/agencies?query=environmental'

# 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-regulations.use.x402atlas.com/agencies?query=environmental' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fus-regulations.use.x402atlas.com%2Fagencies
const res = await pay("https://us-regulations.use.x402atlas.com/agencies?query=environmental");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
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-regulations.use.x402atlas.com/agencies?query=environmental")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
1 h agoPassed402411 ms$0.005
6 h agoPassed402425 ms$0.005
11 h agoPassed402347 ms$0.005
16 h agoPassed402399 ms$0.005
21 h agoPassed402443 ms$0.005
Show 1 older checks
25 h agoPassed402345 ms$0.005