x402-filings.datalayer.workers.dev/v1/company/enrich

Turns a domain, company name or ticker into the official identifiers everything else joins on: SEC CIK, GLEIF LEI, Wikidata ID and SIC industry code, plus legal name, jurisdiction, HQ, whether it still files with the SEC, and its recent filing mix. Built to be called once per row over a list. Every source is free and redistributable, so results carry no vendor resale restriction.