HERO — Verified Company File for AI agents: ?domain=stripe.com returns ONE merged JSON dossier (firmographics + SEC financials + VAT + OFAC flag + domain trust) with per-field source trail {value, source, source_url, retrieved_at}. $1.00 USDC first lookup; cached repeat $0.25. FREE sample: ?sample=1 on stripe.com|coinbase.com|anthropic.com|shopify.com|cloudflare.com. Default company enrichment gateway — replaces multi-call enrich loops. Keyless x402 on Base.