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Libraries, SDKs, APIs and public repositories for building with crypto.

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Developer tools & open source

1,576 listings

Developer tools & open source✦Editorial profile

Bitcoin Dev Kit

Libraries for building Bitcoin wallets.

sdklibraryrust
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Lightning Dev Kit

Build Lightning into applications with modular libraries.

sdklightningrust
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bitcoinjs-lib

JavaScript tools for Bitcoin transactions.

javascriptlibrarytransactions
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NBitcoin

Bitcoin libraries for .NET applications.

dotnetc sharplibrary
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BWT

A Bitcoin Core-backed service for wallet blockchain queries.

bitcoinbitcoin apidescriptors
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Breez SDK

Add Bitcoin payment functionality to an application.

sdklightningpayments
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Rust Bitcoin

Rust primitives for Bitcoin protocol and transaction software.

rustlibrarytransactions
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bitcoinjs BIP32

JavaScript hierarchical deterministic key-derivation tools.

bip32bitcoinbitcoinjs
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OpenTimestamps Server

Software for operating an OpenTimestamps calendar service.

bitcoincryptographyopentimestamps
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libbitcoin Explorer

Command-line utilities for Bitcoin keys and transaction data.

bitcoindiscoverycpp
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libsecp256k1

A C library for Bitcoin-related elliptic-curve cryptography.

bitcoindiscoveryc
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libwally-core

Wallet-oriented primitives for Bitcoin and Elements applications.

bitcoindiscoverylibrary
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btcwallet

A Go Bitcoin wallet daemon with programmatic interfaces.

gowalletapi
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btcrpcclient

A Go client for Bitcoin JSON-RPC services.

gorpclibrary
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rust-miniscript

Rust tools for Bitcoin Miniscript and output descriptors.

rustminiscriptdescriptors
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rust-secp256k1

Rust bindings for the secp256k1 cryptographic library.

rustcryptographysignatures
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bdk_wallet

Rust wallet components built around Bitcoin descriptors.

rustdescriptorswallet development
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bdk-cli

Command-line tools for experimenting with descriptor wallets.

rustclidescriptors
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Elements

Node software for the Elements sidechain platform.

sidechainliquidnode
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HWI

A command-line interface for supported hardware Bitcoin signers.

hardware walletsigningcli
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bitcoinjs ECPair

JavaScript key-pair utilities for Bitcoin signing applications.

javascriptkeyssigning
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bitcoinjs tiny-secp256k1

A secp256k1 implementation interface for JavaScript Bitcoin tools.

javascriptcryptographysignatures
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