ContractScan runs 5 security engines in parallel — Slither, Semgrep, Mythril, Aderyn, and AI — on Solidity or Rust/Near contracts. No CLI setup. ~30 second results. Free QuickScan: no signup. $4.99 Deep Scan: full 5-engine report. $59/mo Pro: unlimited + CI/CD. 5 real-world threat intel sources: 686 DeFi exploits, Solodit, Code4rena, Sherlock — all integrated. Goal: detect every vulnerability type ever exploited in production.