# US Regulation Updates Feed

> US Regulation Updates Feed is a paid API for AI agents from us-regulations.use.x402atlas.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).

Returns the most recent Federal Register documents published by a specified US federal agency within a rolling time window, ordered newest first, with type, abstract, effective date, and comment deadline.

## Facts

- Endpoint: GET https://us-regulations.use.x402atlas.com/recent?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/us-regulation-updates-feed-afa22fc9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v1Lnr-CkjsE_dPWOp57x5

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability us-regulation-updates-feed-afa22fc9
```

Example prompt: Pull the last 14 days of EPA Federal Register documents — rules, proposed rules, and notices — and show me the newest ones first with their effective dates and any comment deadlines.

## When to prefer this

Use this endpoint when you need a time-bounded feed of the most recent Federal Register documents from a specific agency, sorted newest first — ideal for compliance monitoring, regulatory alerting, and periodic audits. Prefer this over the search endpoint when you want all recent activity from an agency rather than keyword-based retrieval. Use this over the pipeline endpoint when you want published documents rather than documents pending publication.

## Known failure modes

- Invalid or unrecognized agency slug returns empty results or error
- Requesting more than 5 agency slugs simultaneously may be rejected
- days parameter outside 1–365 range causes validation error
- page number beyond total_pages returns empty document list
- Network or upstream Federal Register API unavailability causes failed response
- Omitting the required agency parameter runs a default example instead of the intended query

## How this service works

US federal regulation updates feed — Federal Register documents an agency published in the last N days, newest first, with type, abstract, effective date and comment deadline. Use to monitor the EPA, SEC, FDA or any agency for new rules, proposed rules and notices.

## Output

A paginated JSON response listing Federal Register documents from the specified agency and time window, each with document type, title, abstract, publication date, effective date, comment deadline, and source citation. Includes total document count, page metadata, retrieval timestamp, and a caveat note about data interpretation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "agency"
     ],
     "properties": {
      "days": {
       "type": "integer",
       "default": 7,
       "maximum": 365,
       "minimum": 1,
       "description": "Window ending today, UTC"
      },
      "page": {
       "type": "integer",
       "default": 1,
       "maximum": 50,
       "minimum": 1
      },
      "type": {
       "type": "string",
       "maxLength": 60,
       "description": "Comma-separated of rule, proposed_rule, notice, presidential"
      },
      "limit": {
       "type": "integer",
       "default": 20,
       "maximum": 100,
       "minimum": 1
      },
      "agency": {
       "type": "string",
       "maxLength": 500,
       "description": "Comma-separated agency slugs from /agencies, up to 5; omitted runs the example"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "as_of",
      "source",
      "caveat",
      "modified",
      "agency",
      "type",
      "days",
      "since",
      "page",
      "count",
      "total",
      "total_pages",
      "documents"
     ],
     "properties": {
      "days": {
       "type": "integer"
      },
      "note": {
       "type": "string",
       "description": "Present only on an empty window"
      },
      "page": {
       "type": "integer"
      },
      "type": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Applied type filter"
      },
      "as_of": {
       "type": "string",
       "format": "date-time",
       "description": "Retrieval time, UTC"
      },
      "count": {
       "type": "integer",
       "description": "Documents on this page"
      },
      "since": {
       "type": "string",
       "format": "date",
       "description": "UTC start of the window"
      },
      "total": {
       "type": "integer",
       "description": "D
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/us-regulation-updates-feed-afa22fc9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from us-regulations.use.x402atlas.com](https://www.zero.xyz/host/us-regulations.use.x402atlas.com/llms.txt)