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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 16 2

  2. wisp wisp Public

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

    Zig 18

  3. libnostr-z libnostr-z Public

    Zig library for the Nostr protocol

    Zig 15

  4. libnostr-c libnostr-c Public

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

    C 13 1

  5. keep-android keep-android Public

    Android app for FROST threshold signing with NIP-55 support

    Kotlin 9 2

  6. shrike shrike Public

    Forked from sparrowwallet/sparrow

    Desktop Bitcoin wallet. Sparrow fork adding unified opt-in sighash support.

    Java 40 6

Repositories

Showing 10 of 88 repositories
  • cln-startos Public Forked from Start9Labs/cln-startos

    Core Lightning with BLAKE2b block header and unified signature support, packaged for StartOS. Unofficial, not audited.

    privkeyio/cln-startos's past year of commit activity
    TypeScript 1 18 0 0 Updated Oct 9, 2026
  • lightning Public Forked from ElementsProject/lightning

    Unofficial Core Lightning fork with BLAKE2b block header and unified signature support for the Bitcoin hardfork. Not audited.

    privkeyio/lightning's past year of commit activity
    C 6 1,097 9 0 Updated Oct 9, 2026
  • keep Public

    Self-custodial key management for Nostr and Bitcoin

    privkeyio/keep's past year of commit activity
    Rust 16 MIT 2 25 0 Updated Oct 9, 2026
  • keep-android Public

    Android app for FROST threshold signing with NIP-55 support

    privkeyio/keep-android's past year of commit activity
    Kotlin 9 MIT 2 3 0 Updated Oct 8, 2026
  • lampo.rs Public Forked from vincenzopalazzo/lampo.rs

    lampo (lightning in Italian) is a experimental implementation of a tiny lightning node

    privkeyio/lampo.rs's past year of commit activity
    Rust 0 BSD-3-Clause 26 0 0 Updated Oct 8, 2026
  • keep-startos Public

    Always-on FROST threshold co-signer node for Nostr and Bitcoin, packaged for StartOS

    privkeyio/keep-startos's past year of commit activity
    TypeScript 1 MIT 1 1 0 Updated Oct 8, 2026
  • wisp-startos Public template
    privkeyio/wisp-startos's past year of commit activity
    TypeScript 0 MIT 1 0 0 Updated Oct 8, 2026
  • keep-esp32 Public

    Air-gapped FROST threshold signing device

    privkeyio/keep-esp32's past year of commit activity
    C 5 MIT 0 15 2 Updated Oct 8, 2026
  • omarchy Public Forked from omacom/omarchy

    Beautiful, Modern & Opinionated Linux

    privkeyio/omarchy's past year of commit activity
    Shell 0 MIT 5,359 0 0 Updated Oct 8, 2026
  • polar Public Forked from jamaljsr/polar

    One-click Bitcoin Lightning networks for local app development & testing

    privkeyio/polar's past year of commit activity
    TypeScript 1 MIT 197 0 0 Updated Oct 8, 2026
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