US federal regulation search — find Federal Register rules, proposed rules, noti
US federal regulation search — find Federal Register rules, proposed rules, notices and presidential documents by full text, agency, type, date, docket, RIN, significance or CFR part, with abstract, effective date, comment deadline and official links for each. Use to check whether a rule exists on a subject, what an agency has issued, or when a comment period closes.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
876 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://us-regulations.use.x402atlas.com/search
| Category | Search and research |
|---|---|
| Provider host | us-regulations.use.x402atlas.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.01 | 876 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"query": "stablecoin",
"type": "rule,proposed_rule"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"agency": {
"description": "Comma-separated agency slugs from /agencies, up to 5",
"maxLength": 500,
"type": "string"
},
"cfr_part": {
"description": "Part or range such as 17 or 1-50; requires cfr_title",
"maxLength": 9,
"type": "string"
},
"cfr_title": {
"description": "Affected CFR title",
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"docket": {
"description": "Agency docket id",
"maxLength": 64,
"type": "string"
},
"limit": {
"default": 20,
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"order": {
"default": "relevance",
"enum": [
"relevance",
"newest",
"oldest"
],
"type": "string"
},
"page": {
"default": 1,
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"query": {
"description": "Full-text search",
"maxLength": 200,
"type": "string"
},
"rin": {
"description": "Regulation Identifier Number",
"maxLength": 64,
"type": "string"
},
"significant": {
"description": "Deemed significant under EO 12866",
"type": "boolean"
},
"since": {
"description": "Published on or after, YYYY-MM-DD",
"format": "date",
"type": "string"
},
"type": {
"description": "Comma-separated of rule, proposed_rule, notice, presidential",
"maxLength": 60,
"type": "string"
},
"until": {
"description": "Published on or before, YYYY-MM-DD",
"format": "date",
"type": "string"
}
},
"required": [
"query"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"agency": {
"description": "Applied agency filter",
"items": {
"type": "string"
},
"type": "array"
},
"as_of": {
"description": "Retrieval time, UTC",
"format": "date-time",
"type": "string"
},
"caveat": {
"description": "Fixed interpretation note",
"type": "string"
},
"count": {
"description": "Documents on this page",
"type": "integer"
},
"documents": {
"description": "Documents: document_number, title, type (rule|proposed_rule|notice|presidential), subtype?, agencies[] {name, slug}, abstract (\u22641,500 chars), publication_date, effective_date?, comments_close?, significant (yes|no|unknown), docket_ids[], rins[], cfr_references[] {title, part, chapter?}, citation, url, pdf_url",
"items": {
"type": "object"
},
"type": "array"
},
"modified": {
"description": "Always true: fields are normalized, not the official record",
"type": "boolean"
},
"note": {
"description": "Present only on a sample or empty response",
"type": "string"
},
"order": {
"enum": [
"relevance",
"newest",
"oldest"
],
"type": "string"
},
"page": {
"type": "integer"
},
"query": {
"type": "string"
},
"since": {
"description": "Applied; empty when none",
"type": "string"
},
"source": {
"additionalProperties": false,
"properties": {
"citation": {
"type": "string"
},
"name": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"name",
"url",
"citation"
],
"type": "object"
},
"total": {
"description": "Documents matching; the venue reports at most 10,000",
"type": "integer"
},
"total_pages": {
"description": "At most 50, the venue's paging ceiling",
"type": "integer"
},
"type": {
"description": "Applied type filter",
"items": {
"type": "string"
},
"type": "array"
},
"until": {
"description": "Applied; empty when none",
"type": "string"