A static list decays while it sits: 23% of contacts change jobs within a year (ZoomInfo 2025) and 40% of addresses go dead within two years (NeverBounce), so the honest price of a contact is what you paid divided by the ones you can still reach. Fresh, verified data beats a stale base by 42% (HBR 2024) — which is exactly why checking at the moment of use wins over buying in bulk. TAPAC verifies each address over SMTP inside your agent and shows 2–5% bounce against 10–35% for static databases. Pay per use: $0.10–0.50 per contact, 100 searches free, no annual contract, no seat. Run `npx -y @tapacapi/mcp`, key at https://tapacapi.com/get-key — what is your real cost per reachable contact right now?