MPC wallet

An MPC wallet uses multi-party computation to distribute key shares across parties that co-sign transactions without any one of them ever holding the complete private key.

MPC (multi-party computation) removes the single point of failure of one private key by splitting signing across several shares. A threshold of parties must cooperate to produce a signature, and the full key is never assembled in one place. This gives custody-grade security with a standard on-chain footprint, since the network sees an ordinary signature. An MPC signing layer sits above our tx primitives: it produces the signed transaction, which our broadcast endpoint then submits to the network non-custodially.