---
id: slip10
version: "1.1.0"
license: BSD-3-Clause AND MIT
license_treatment: permissive
maintenance: active
---

# slip10 — A reference implementation of the SLIP-0010 specification, which generalizes the BIP-0032 derivation scheme for private and public key pairs in hierarchical deterministic wallets for the curves secp256k1, NIST P-256, ed25519 and curve25519.

License: permissive · Maintenance: active · Downloads: 152.4K/mo

## What it is and what it does

slip10 is a reference implementation of the SLIP-0010 specification, which extends BIP-0032 to define how to derive hierarchical deterministic key pairs across multiple elliptic curves. It takes a seed (or an existing extended key) and derives child keys at any depth along a path, supporting both hardened and unhardened derivation steps. The package handles four curves: secp256k1 (Bitcoin), NIST P-256, ed25519, and curve25519.

The library provides methods to initialize from a raw seed, an extended private key (xpriv), or an extended public key (xpub), then derive keys at any path as either raw bytes, extended keys, or serialized base58-encoded strings. It depends only on cryptography for ed25519 and curve25519 operations, having dropped external ecdsa and base58 dependencies in version 1.1.0 by inlining those implementations. It supports Python 3.8 through 3.14.

Use it for:

- Generate a hierarchy of Bitcoin addresses from a single seed for HD wallet implementations
- Derive public keys from an xpub without access to private keys for watch-only wallet scenarios
- Support multiple elliptic curves in a single codebase for cross-chain or multi-curve applications
- Implement key derivation paths following the SLIP-0010 standard for interoperability with other wallets

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Implements SLIP-0010 hierarchical deterministic key derivation for Bitcoin and other cryptocurrencies, supporting secp256k1, NIST P-256, ed25519, and curve25519 elliptic curves.

Yes, if you need SLIP-0010 key derivation. The package is actively maintained, has no known vulnerabilities, low install friction, and a permissive dual license. It is a reference implementation suitable for projects requiring standards-compliant hierarchical key derivation across Bitcoin and other curves. Verify whether it meets your production-readiness requirements before use in live cryptocurrency systems.

## Install

pip install slip10
uv add slip10
poetry add slip10

## Installing slip10

Before you install: Low friction: pure Python wheel with only cryptography as a runtime dependency. Actively maintained with recent release (2026-02-02) and clean commit history.

License in practice: Dual-licensed under BSD-3-Clause and MIT (permissive). Both licenses allow commercial and private use with minimal restrictions.

Quickstart:

from slip10 import SLIP10, HARDENED_INDEX
slip10 = SLIP10.from_seed(bytes.fromhex("01"))
xpriv = slip10.get_xpriv_from_path([1, HARDENED_INDEX, 9998])
pubkey = slip10.get_pubkey_from_path("m/1/1/1/1/1/1/1/1/1/1/1")

Verify before relying:

- Whether the package is suitable for production use in real cryptocurrency wallets or primarily for reference/testing
- Performance characteristics when deriving keys from deep paths or handling many derivations

## Package facts

- License: BSD-3-Clause AND MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 152.4K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

hierarchical deterministic wallet key derivation, slip10 implementation, bip32 generalized key derivation, bitcoin hd wallet keys, elliptic curve key generation, cryptocurrency key derivation, secp256k1 ed25519 key paths, bitcoin, key-derivation, cryptocurrency

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