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AnswerPool Federal Register Search
x402
AnswerPool Federal Register Search is a paid API for AI agents from answerpool.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Full-text search over all US federal rules, proposed rules, and notices across ~470 agencies, returning documents with computed comment and effective-date deadlines.
Price / call$0.005
Success—
StatusUnknown
How this service works
AnswerPool turns SEC EDGAR, the Federal Register, USAspending, NIH, BLS and OpenAlex into structured JSON answers that AI agents and developers fetch in one call. 69 endpoints free, no account; derived analyses $0.02–$0.05 per call by card credits or USDC (x402). MCP server, full provenance.
Output
A JSON object containing a list of matching Federal Register documents, each with title, document type, issuing agencies, abstract, publication date, effective date, comment close date, days-to-effective, days-to-comment-close, CFR references, docket IDs, regulation ID numbers, significance flag, and a direct federalregister.gov URL. Also includes total matching count and the as-of timestamp.
Example use cases
Compliance deadline monitoring for counsel
“Search the Federal Register for any new EPA rules on emissions standards and tell me which ones are effective within the next 30 days and whether any comment periods are still open.”
Regulatory landscape scan for new industry
“Find all significant federal rules and proposed rules related to artificial intelligence or machine learning across any agency — I need to understand what's been finalized and what's still pending.”
Lobbying and comment period tracking
“Search for any proposed rules from the FTC or CFPB on data privacy published in the last 60 days — I want to know which ones still accept public comments and when those windows close.”
Technical details
Endpoint
GEThttps://answerpool.io/v1/regs/searchWhen to prefer
Choose this endpoint when you need to search across all US federal agencies simultaneously for regulatory documents by topic, rather than scraping the Federal Register website directly or maintaining agency-specific integrations. It is especially valuable when you need pre-computed deadline fields (days to effective, days to comment close) rather than parsing raw dates yourself. Prefer it over generic web search when regulatory precision and structured output are required.
Side effects
- No documents found for overly narrow or misspelled query terms
- Rate limiting or payment failure if x402 payment is not handled correctly
- Stale results if the Federal Register has not yet published a recent document
- Empty results for very new agencies or obscure docket types not yet indexed
- Unexpected null fields for documents lacking comment periods or effective dates
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-09-02T14:00:00Z",
"count": 1,
"documents": [
{
"url": "https://www.federalregister.gov/d/2026-12341",
"type": "Rule",
"flags": [
"significant",
"effective_soon",
"final_rule_pending_effect"
],
"title": "Cybersecurity Risk Management Rule",
"action": "Final rule.",
"topics": [
"Securities"
],
"abstract": "Requires registrants to disclose material cybersecurity incidents.",
"agencies": [
"Securities and Exchange Commission"
],
"docket_ids": [
"SEC-2026-001"
],
"significant": true,
"effective_on": "2026-09-12",
"cfr_references": [
"17 CFR 240"
],
"document_number": "2026-12341",
"publication_date": "2026-08-30",
"comments_close_on": null,
"days_to_effective": 10,
"days_to_comment_close": null,
"regulation_id_numbers": [
"3235-AN00"
]
}
],
"total_matching": 42
}
}Tags
x402
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