Get company ownership API

Retrieve parent and subsidiary relationships from GLEIF.

The Get company ownership operation is part of the Company Intelligence API on BRAINIAC.software. Retrieve parent and subsidiary relationships from GLEIF. It is exposed as POST /api/v1/company-intelligence/ownership 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: GLEIF API for LEI records, entity profiles, and ownership relationships (api.gleif.org). SEC EDGAR public API for company submissions, XBRL financial facts, and filings (data.sec.gov). Limitations: GLEIF covers entities with LEIs; not all private companies worldwide have LEIs. SEC EDGAR covers only entities required to file with the SEC. Do not merge companies based on ambiguous name matches; preserve source identifiers. 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 companies, Get company profile, Get company financials, Get company filings. Open the group documentation for the full request schema, field notes, and response examples before integrating.

POST$0.03 USDC
/api/v1/company-intelligence/ownership

Example request

curl -i -X POST "https://www.brainiac.software/api/v1/company-intelligence/ownership" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "identifier": "5493001KJTIIGC8Y1R12"
}
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

Company Intelligence APIFull docsHow it works