US federal regulation counts — how many Federal Register documents match a searc
US federal regulation counts — how many Federal Register documents match a search, grouped by agency, document type, year, quarter, month, topic or section, with the same filters as the search. Use to see which agencies regulate a subject, how rulemaking activity moved over time, or which topics a term touches.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
623 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/counts
| 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 | $0.01 | 623 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"query": "artificial intelligence",
"since": "2024-01-01"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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, up to 5",
"maxLength": 500,
"type": "string"
},
"cfr_part": {
"description": "Requires cfr_title",
"maxLength": 9,
"type": "string"
},
"cfr_title": {
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"docket": {
"maxLength": 64,
"type": "string"
},
"facet": {
"default": "agency",
"enum": [
"agency",
"type",
"yearly",
"quarterly",
"monthly",
"topic",
"section"
],
"type": "string"
},
"query": {
"description": "Full-text search",
"maxLength": 200,
"type": "string"
},
"rin": {
"maxLength": 64,
"type": "string"
},
"significant": {
"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": {
"items": {
"type": "string"
},
"type": "array"
},
"as_of": {
"description": "Retrieval time, UTC",
"format": "date-time",
"type": "string"
},
"buckets": {
"items": {
"additionalProperties": false,
"properties": {
"count": {
"type": "integer"
},
"key": {
"description": "Agency slug, type, period start date, topic or section slug",
"type": "string"
},
"label": {
"type": "string"
}
},
"required": [
"key",
"label",
"count"
],
"type": "object"
},
"type": "array"
},
"caveat": {
"description": "Fixed interpretation note",
"type": "string"
},
"count": {
"description": "Groups returned, at most 50",
"type": "integer"
},
"facet": {
"enum": [
"agency",
"type",
"yearly",
"quarterly",
"monthly",
"topic",
"section"
],
"type": "string"
},
"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"
},
"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": "Sum over all groups",
"type": "integer"
},
"type": {
"items": {
"type": "string"
},
"type": "array"
},
"until": {
"description": "Applied; empty when none",
"type": "string"
}
},
"required": [
"as_of",
"source",
"caveat",
"modified",
"query",
"agency",
"type",
"since",
"until",
"facet",
"total",
"count",
"buckets"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"