Federal Register search: US rules and notices

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Search the US Federal Register: final rules, proposed rules, notices and presidential documents, newest first, with title, type, agencies, abstract, publication date, comment deadline, effective date and links. Filter by type and agency; sort=relevance puts the documents that are most about the words first. From the Federal Register API (US government work). Use to track new regulations or open comment periods on a topic.

Run it free (3 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

Search words, e.g. artificial intelligence

Uses one of your 3 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
q (required)stringSearch words, e.g. artificial intelligence
typestringrule, proposed_rule, notice or presidential (default all)
agencystringAgency slug, e.g. securities-and-exchange-commission (optional)
limitstringDocuments to return, 1-20 (default 10)
sortstringnewest (default) or relevance

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://glyphcall.com/gov/federal-register?q=artificial%20intelligence"

Or one of your 3 free calls, no key:

curl "https://glyphcall.com/gov/federal-register?q=artificial%20intelligence&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "query": "artificial intelligence",
  "total": 1605,
  "count": 1,
  "documents": [
    {
      "title": "Outbound Investment Security Program Regulations",
      "type": "Rule",
      "agencies": [
        "Treasury Department"
      ],
      "abstract": "…",
      "published": "2026-10-24",
      "commentsClose": null,
      "effective": "2026-11-24",
      "documentNumber": "2026-21001",
      "url": "https://www.federalregister.gov/documents/2026/10/24/2026-21001/…",
      "pdf": "https://www.govinfo.gov/…"
    }
  ],
  "source": "Federal Register API (federalregister.gov)"
}

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