Anyone can promise secure. We show you the controls.

Key management architecture (MPC, multisig or hardware-backed signing), policy engines (limits, allowlists, approval flows), chain integrations, transaction construction and simulation, monitoring and alerting, and the interfaces your team and customers use every day. At Houtos Labs it also includes a graded security-posture baseline before we build, and a second grade before anything ships.

We architect for EVM chains (Ethereum, Base and other L2s), Solana, Bitcoin rails, Stellar and the XRP Ledger, all behind one policy and key-management layer, so adding a chain doesn't have to mean rebuilding your security model. The right chains depend on where your users and assets are. We settle that while scoping the project.

Used narrowly: anomaly flags on unusual transaction patterns, address-risk screening before signing, plain-language transaction explanations so signers know what they're approving, and routing suggestions. AI assists the controls. It never replaces deterministic policy rules, and it never signs. Anything probabilistic is labeled that way, just as our reports label estimates.

Yes. Hardening starts with a reading. We map the key paths, permissions, dependencies and operational practices, grade the posture, and hand you a ranked fix list in plain English. If you want, we then do the work and grade it again. For formal smart-contract audits we work alongside specialist auditors instead of pretending to replace them. We'll also tell you which parts of your system our review didn't cover.