TSP solver within 0.13% of LKH-3 — the gold standard for 20+ years. Beats Google OR-Tools. One API call: send coordinates or distance matrix, get optimal tour back. Works for delivery routes, warehouse picking, PCB drilling, DNA sequencing, telescope scheduling — any ordering problem. Built in Rust. 100 cities in 0.5s, 1000 in 3s. Free tier available. Lifetime pricing — no subscriptions.