Managing private keys at scale is dangerous and painful. Most teams end up encrypting seed phrases in their database, juggling 4 chain SDKs, or spending weeks on a custom KMS before shipping a single feature. Signet removes that: — Wallets on 12+ chains, one API call — Sign, swap, stake, bridge, lend, borrow — Change one word, different chain — AES-256-GCM, non-custodial — Any language, just HTTP Free tier. Built in Rust.