Get US Federal Register document details API

Retrieve US Federal Register document details and effective dates from the official federalregister.gov API.

The Get US Federal Register document details operation is part of the Regulatory Intelligence API on BRAINIAC.software. Retrieve US Federal Register document details and effective dates from the official federalregister.gov API. It is exposed as POST /api/v1/regulatory-intelligence/us/details and priced at $0.03 USDC on Base. Payment uses the x402 exact scheme: an unpaid call returns HTTP 402 with payment requirements; after paying the exact USDC amount, retry the same request with a payment-signature header and Idempotency-Key. No account and no API key are required. Data sources for this product: legislation.gov.uk federalregister.gov Limitations: UK keyword search is limited because legislation.gov.uk does not provide a public JSON search API. Results are source records for review, not legal advice. Outputs are compliance prechecks, drafts, or data lookups for human review. They are not official determinations, legal advice, identity confirmation, or certified filings. Related operations in this group include Search UK legislation, Get UK legislation details, Search US Federal Register, Get US Federal Register agencies. Open the group documentation for the full request schema, field notes, and response examples before integrating.

POST$0.03 USDC
/api/v1/regulatory-intelligence/us/details

Example request

curl -i -X POST "https://www.brainiac.software/api/v1/regulatory-intelligence/us/details" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "documentNumber": "2026-22386"
}
JSON

An unpaid probe returns HTTP 402 with x402 payment requirements. After paying the exact USDC amount on Base, retry the identical request with a payment-signature header.

FAQ

  • Do I need an API key? No. Pay the listed USDC amount with x402.
  • What network? Base (eip155:8453), USDC.
  • Is this an official determination? No. Results are for human review against the cited sources.

Related APIs

Regulatory Intelligence APIFull docsHow it works