How do I install the Bitcoin Libraries Libwally skill?

Run npx skillmds@latest add claude-dev-suite/bitcoin-libraries-libwally in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Bitcoin Libraries Libwally safe to use?

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Which AI agents work with Bitcoin Libraries Libwally?

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Is Bitcoin Libraries Libwally free to use?

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Who published Bitcoin Libraries Libwally?

claude-dev-suite (@claude-dev-suite) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Bitcoin Libraries Libwally by claude-dev-suite

Name: Bitcoin Libraries Libwally
Rating: 4.5 (4 reviews)
Author: claude-dev-suite

Bitcoin Libraries Libwally

libwally-core: Blockstream's C library for wallet primitives. BIP32/39, PSBT, Liquid Confidential Transactions, BIP143, Schnorr. Bindings to Python, JS, Java, Swift. USE WHEN: building cross-language wallets via libwally bindings, integrating Liquid CT.

claude-dev-suite Updated Sep 8, 2026 28 repo stars

File contents

libwally-core

Blockstream's C library focused on wallet primitives (vs full node code).

Repo: github.com/ElementsProject/libwally-core.

Features

BIP32 HD derivation.
BIP39 mnemonic.
BIP38 password-encrypted private keys.
PSBT (BIP174).
Bitcoin Tx serialization.
Liquid Confidential Transactions.
Schnorr (BIP340).
BIP85.

Bindings

Python: wallycore.
JavaScript: libwally-core-js (WebAssembly).
Java: wally-android, wally-jvm.
Swift: native bindings for iOS.
C (native).

Quick example (Python)

import wallycore as wally

seed = wally.bip39_mnemonic_to_seed512("abandon abandon ... about", "")
master = wally.bip32_key_from_seed(seed, wally.BIP32_VER_MAIN_PRIVATE)
account = wally.bip32_key_from_parent_path(master,
    [84 + 0x80000000, 0 + 0x80000000, 0 + 0x80000000])
xpub = wally.bip32_key_to_base58(account, wally.BIP32_FLAG_KEY_PUBLIC)

Use cases

Blockstream Green Wallet (uses libwally extensively).
Cross-platform wallet libraries (one C core, many bindings).
Liquid integrations.

Compared

Aspect	libwally	rust-bitcoin	bitcoinj
Language	C (with bindings)	Rust	Java
Liquid CT	Yes	No	No
HW wallet	No	No	No
Performance	Best (C)	Best	Acceptable

Common pitfalls

C API is stateful; clean up with wally_*_free functions.
Build with --enable-elements for Liquid CT support.
Bindings sometimes lag C library version.

---name: bitcoin-libraries-libwallydescription: libwally-core: Blockstream's C library for wallet primitives. BIP32/39, PSBT, Liquid Confidential Transactions, BIP143, Schnorr. Bindings to Python, JS, Java, Swift. USE WHEN: building cross-language wallets via libwally bindings, integrating Liquid CT.---# libwally-coreBlockstream's C library focused on wallet primitives (vs fullnode code).Repo: `github.com/ElementsProject/libwally-core`.## Features- BIP32 HD derivation.- BIP39 mnemonic.- BIP38 password-encrypted private keys.- PSBT (BIP174).- Bitcoin Tx serialization.- Liquid Confidential Transactions.- Schnorr (BIP340).- BIP85.## Bindings- **Python**: `wallycore`.- **JavaScript**: `libwally-core-js` (WebAssembly).- **Java**: `wally-android`, `wally-jvm`.- **Swift**: native bindings for iOS.- **C** (native).## Quick example (Python)```pythonimport wallycore as wallyseed = wally.bip39_mnemonic_to_seed512("abandon abandon ... about", "")master = wally.bip32_key_from_seed(seed, wally.BIP32_VER_MAIN_PRIVATE)account = wally.bip32_key_from_parent_path(master, [84 + 0x80000000, 0 + 0x80000000, 0 + 0x80000000])xpub = wally.bip32_key_to_base58(account, wally.BIP32_FLAG_KEY_PUBLIC)```## Use cases- Blockstream Green Wallet (uses libwally extensively).- Cross-platform wallet libraries (one C core, many bindings).- Liquid integrations.## Compared| Aspect | libwally | rust-bitcoin | bitcoinj ||--------|----------|--------------|----------|| Language | C (with bindings) | Rust | Java || Liquid CT | Yes | No | No || HW wallet | No | No | No || Performance | Best (C) | Best | Acceptable |## Common pitfalls- C API is stateful; clean up with `wally_*_free` functions.- Build with `--enable-elements` for Liquid CT support.- Bindings sometimes lag C library version.## See also- [secp256k1-c/SKILL.md](../secp256k1-c/SKILL.md)- [../../l2/liquid/SKILL.md](../../l2/liquid/SKILL.md)- [../../infrastructure/specter-desktop/SKILL.md](../../infrastructure/specter-desktop/SKILL.md)

Frequently asked questions