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PrivKey

Open-source infrastructure for Bitcoin, Lightning, and Nostr. Self-custodial key management, FROST threshold signing, and high-performance relays.
README.md

PrivKey

Open-source infrastructure for Bitcoin, Lightning, and Nostr. FROST threshold signing, self-custodial key management, and high-performance relays in Rust, Zig, and C. MIT licensed and self-hostable.

Keep, self-custodial key management for Nostr and Bitcoin, so no single device holds the whole key: keep (Rust), keep-android (Kotlin), keep-esp32 (C), keep-startos (TypeScript).

Libraries: libnostr-c, libnostr-z.

Tools: wisp (Nostr relay), noz (Nostr CLI), taproot-assets-rest-gateway, bosun (Bitcoin PR triage).

We upstream our fixes: Bitcoin Core, Bitcoin Knots, BDK, rust-miniscript, ZF FROST, Lightning BOLTs, negentropy. Current list at privkey.io.

Building since 2018. privkey.io · information@privkey.io · book a consultation

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  1. keep keep Public

    Self-custodial key management for Nostr and Bitcoin

    Rust 13 2

  2. keep-android keep-android Public

    Android app for FROST threshold signing with NIP-55 support

    Kotlin 9 1

  3. libnostr-c libnostr-c Public

    Lightweight, portable C library for the Nostr protocol with native Lightning Network integration.

    C 12

  4. libnostr-z libnostr-z Public

    Zig library for the Nostr protocol

    Zig 14

  5. keep-esp32 keep-esp32 Public

    Air-gapped FROST threshold signing device

    C 5

  6. wisp wisp Public

    Fast, lightweight Nostr relay with spider mode that syncs notes from people you follow.

    Zig 17

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