mirrored listing x402 eip155:8453

Search U

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.

2000 (raw units)

price

calls / 30d

unique payers

2026-09-06

updated

Provider

api.macaroonnetwork.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x33cc8de6e86761d217044a8a6b394ad23b579596",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 60
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "input": {
            "filters": {
              "document_type": "NOTICE",
              "limit": 5
            },
            "query": "recent EPA rules about emissions"
          },
          "predicate": {
            "conditions": [
              {
                "field": "$.notices",
                "type": "count_gte",
                "value": 1
              }
            ],
            "type": "all"
          }
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "payload": {
            "notices": [],
            "query": {
              "filters": {},
              "query": ""
            },
            "results": []
          },
          "predicate_passed": true,
          "settled": true
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://api.macaroonnetwork.com/execute/federal-register-search-v1"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.macaroonnetwork.com/execute/federal-register-search-v1");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.macaroonnetwork.com/execute/federal-register-search-v1")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/6325.json, and this resource appears in /discovery/resources and /discovery/search.