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US Federal Register Search API
x402
US Federal Register Search API is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-01).
Searches the US Federal Register for proposed rules, final rules, notices, and presidential documents by topic keyword, with optional type and recency filters.
Price / call$0.02
Success—
StatusUnknown
How this service works
Search the US Federal Register (official public-domain government record) by topic: proposed rules, final rules, notices and presidential documents, with agency, publication date, abstract and official link. Filter by type and recency. Complements SEC/CFTC RSS tracking.
Output
Returns a JSON object containing the search topic, document type filter applied, source label, total number of matches, and an array of up to 50 documents — each with title, document type, publication date, issuing agencies, a plain-text abstract/summary, and a direct link to the official Federal Register entry.
Example use cases
Crypto compliance regulatory monitoring
“Search the Federal Register for any proposed rules or final rules about cryptocurrency or digital assets from the last 90 days — give me up to 20 results with the issuing agency, publication date, and a link.”
AI policy tracking for enterprise
“Find all federal notices and proposed rules mentioning artificial intelligence from the last 180 days, up to 10 results, so I can see what regulations are being drafted.”
Fintech SEC/CFTC rulemaking research
“Pull the latest Federal Register entries — any type — mentioning 'stablecoin' or search for 'stablecoin' from the last 30 days, limit to 5 results, and include the abstract for each.”
Technical details
Endpoint
POSThttps://api.vextorium.com/reg-federal-eeuu-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to search official US federal regulatory documents (proposed rules, final rules, notices, presidential documents) by topic keyword with optional type and date filters. Ideal for compliance monitoring, regulatory research, and tracking federal rulemaking activity. Prefer this over general web search when authoritative government-sourced metadata (agency, date, abstract, official link) is required. Complements SEC/CFTC RSS feeds for broader federal regulatory coverage.
Side effects
- Missing required 'termino' field returns validation error
- Search term too vague or broad may return 0 results
- 'dias' or 'limite' out of allowed range returns schema error
- Federal Register API downtime causes upstream errors
- Non-English search terms may yield poor or no results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tema": "digital asset",
"tipo": "todos",
"fuente": "Federal Register (federalregister.gov, dominio público de EE. UU.)",
"documentos": [
{
"tipo": "Rule",
"fecha": "2026-09-30",
"enlace": "https://www.federalregister.gov/documents/2026/09/30/2026-20009/publication-of-venezuela-sanctions-regulations-web-general-licenses-46d-47b-48c-50c-51c-52b-54b-and",
"titulo": "Publication of Venezuela Sanctions Regulations Web General Licenses 46D, 47B, 48C, 50C, 51C, 52B, 54B, and 61A",
"resumen": "The Department of the Treasury's Office of Foreign Assets Control (OFAC) is publishing eight general licenses (GLs) issued pursuant to the Venezuela Sanctions Regulations: GLs 46D, 47B, 48C, 50C, 51C, 52B, 54B, and 61A, each of which was previously made available on OFAC's website.",
"agencias": [
"Treasury Department",
"Foreign Assets Control Office"
]
},
{
"tipo": "Rule",
"fecha": "2026-09-30",
"enlace": "https://www.federalregister.gov/documents/2026/09/30/2026-20008/publication-of-venezuela-sanctions-regulations-web-general-licenses-52-53-54-55-56-57-and-58",
"titulo": "Publication of Venezuela Sanctions Regulations Web General Licenses 52, 53, 54, 55, 56, 57, and 58",
"resumen": "The Department of the Treasury's Office of Foreign Assets Control (OFAC) is publishing seven general licenses (GLs) issued pursuant to the Venezuela Sanctions Regulations: GLs 52, 53, 54, 55, 56, 57, and 58, each of which was previously made available on OFAC's website.",
"agencias": [
"Treasury Department",
"Foreign Assets Control Office"
]
}
],
"total_coincidencias": 308
}
}Tags
x402
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