{"name":"is-real-biz","transport":"http","auth":"Bearer <api_key from /billing/signup>","tools":[{"name":"check_business","description":"Verify whether a domain belongs to a real business. Returns a verdict (real/likely_real/uncertain/likely_fake/fake), a 0-100 score, confidence, and underlying signals (WHOIS age, SSL, homepage LLM judgment, contact info, social presence). Costs 5 cents per fresh call; cached results are free for 24h."}]}