Lexe

Lexe is a self-custodial bitcoin Lightning wallet whose distinguishing feature is an always-on node: each user's Lightning node runs inside a cloud secure enclave, keys are protected by hardware isolation and unreadable by the operator, and payments can be received and settled while the phone is offline.

Three things back the self-custody claim: the node software is open source, the build is reproducible, and the client performs remote attestation on connect to verify the enclave runs that exact build before the root seed is sent in over an end-to-end encrypted channel. It supports one-time invoices, reusable offers and on-chain addresses, and gives every account a human-readable bitcoin address shaped like an email. Fees are charged per payment at about 0.5% with node hosting free. Python and Rust software development kits plus a command-line tool let agents and servers create wallets, receive and pay programmatically, including pay-per-call machine payment protocols.