Top 12 Altcoin Libraries

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by Ashok Balasubramanian dot icon Updated: Mar 30, 2022

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If you've been looking for open source libraries to help you build Altcoin applications, this is the post for you. When Bitcoin was released in 2008, it blew everyone's minds. It was the first peer-to-peer currency transfer system that didn't require any intermediary—no banks, no credit card companies. It was also open source and decentralized, so everyone could use it equally. But there are lots of issues with Bitcoin as well, including scalability and security. So people started to create their own cryptocurrencies, called Altcoins. Altcoins are alternatives to bitcoins. They're often used to solve problems that have come up with bitcoin and other cryptocurrency users. What's interesting about Altcoin is that they're built on top of bitcoin's open source code, then modified to fit the needs of their developers and users. Now there are hundreds of these Altcoins out there, each doing something a little different than others. They're mostly open source and decentralized as well, but some help to solve the problems Bitcoin has with security or scalability better than others. In the past few years, the number of Altcoins has increased exponentially—just like the number of Bitcoin applications. We love seeing people use these open source libraries in their own development projects, so we're highlighting some of the popular open source libraries across Ethereum, Aave, Lucky Block, Cardano, Decentraland, Algorand and others.

solidityby ethereum

C++ doticonstar image 20327 doticonVersion:v0.8.20doticon
License: Strong Copyleft (GPL-3.0)

Solidity, the Smart Contract Programming Language

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            solidityby ethereum

            C++ doticon star image 20327 doticonVersion:v0.8.20doticon License: Strong Copyleft (GPL-3.0)

            Solidity, the Smart Contract Programming Language
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                      web3.jsby ethereum

                      JavaScript doticonstar image 9518 doticonVersion:v1.3.1doticon
                      License: Others (Non-SPDX)

                      Ethereum JavaScript API

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                                web3.jsby ethereum

                                JavaScript doticon star image 9518 doticonVersion:v1.3.1doticon License: Others (Non-SPDX)

                                Ethereum JavaScript API
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                                          parity-ethereumby openethereum

                                          Rust doticonstar image 6741 doticonVersion:v3.0.1doticon
                                          License: Others (Non-SPDX)

                                          The fast, light, and robust client for Ethereum-like networks.

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                                                    parity-ethereumby openethereum

                                                    Rust doticon star image 6741 doticonVersion:v3.0.1doticon License: Others (Non-SPDX)

                                                    The fast, light, and robust client for Ethereum-like networks.
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                                                              ethminerby ethereum-mining

                                                              C++ doticonstar image 5870 doticonVersion:v0.19.0-alpha.0doticon
                                                              License: Strong Copyleft (GPL-3.0)

                                                              Ethereum miner with OpenCL, CUDA and stratum support

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                                                                        ethminerby ethereum-mining

                                                                        C++ doticon star image 5870 doticonVersion:v0.19.0-alpha.0doticon License: Strong Copyleft (GPL-3.0)

                                                                        Ethereum miner with OpenCL, CUDA and stratum support
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                                                                                  rippledby ripple

                                                                                  C++ doticonstar image 4124 doticonVersion:1.9.0doticon
                                                                                  License: Permissive (ISC)

                                                                                  Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger in C++

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                                                                                            rippledby ripple

                                                                                            C++ doticon star image 4124 doticonVersion:1.9.0doticon License: Permissive (ISC)

                                                                                            Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger in C++
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                                                                                                      stellar-coreby stellar

                                                                                                      C doticonstar image 3045 doticonVersion:v19.11.0doticon
                                                                                                      License: Others (Non-SPDX)

                                                                                                      stellar-core is the reference implementation for the peer to peer agent that manages the Stellar network

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                                                                                                                stellar-coreby stellar

                                                                                                                C doticon star image 3045 doticonVersion:v19.11.0doticon License: Others (Non-SPDX)

                                                                                                                stellar-core is the reference implementation for the peer to peer agent that manages the Stellar network
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                                                                                                                          go-algorandby algorand

                                                                                                                          C doticonstar image 1251 doticonVersion:v3.16.2-betadoticon
                                                                                                                          License: Others (Non-SPDX)

                                                                                                                          Algorand's official implementation in Go.

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                                                                                                                                    go-algorandby algorand

                                                                                                                                    C doticon star image 1251 doticonVersion:v3.16.2-betadoticon License: Others (Non-SPDX)

                                                                                                                                    Algorand's official implementation in Go.
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                                                                                                                                              marketplaceby decentraland

                                                                                                                                              TypeScript doticonstar image 1011 doticonVersion:6.0.3doticon
                                                                                                                                              License: Others (Non-SPDX)

                                                                                                                                              🏛️ Decentraland's NFT Marketplace

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                                                                                                                                                        marketplaceby decentraland

                                                                                                                                                        TypeScript doticon star image 1011 doticonVersion:6.0.3doticon License: Others (Non-SPDX)

                                                                                                                                                        🏛️ Decentraland's NFT Marketplace
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                                                                                                                                                                  rust-cardanoby input-output-hk

                                                                                                                                                                  Rust doticonstar image 270 doticonVersion:Currentdoticon
                                                                                                                                                                  License: Permissive (MIT)

                                                                                                                                                                  rust client libraries to deal with the current cardano mainnet (byron / cardano-sl)

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                                                                                                                                                                            rust-cardanoby input-output-hk

                                                                                                                                                                            Rust doticon star image 270 doticonVersion:Currentdoticon License: Permissive (MIT)

                                                                                                                                                                            rust client libraries to deal with the current cardano mainnet (byron / cardano-sl)
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                                                                                                                                                                                      js-algorand-sdkby algorand

                                                                                                                                                                                      TypeScript doticonstar image 269 doticonVersion:v2.3.0doticon
                                                                                                                                                                                      License: Permissive (MIT)

                                                                                                                                                                                      The official JavaScript SDK for Algorand.

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                                                                                                                                                                                                js-algorand-sdkby algorand

                                                                                                                                                                                                TypeScript doticon star image 269 doticonVersion:v2.3.0doticon License: Permissive (MIT)

                                                                                                                                                                                                The official JavaScript SDK for Algorand.
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                                                                                                                                                                                                          TypeScript doticonstar image 590 doticonVersion:v1.17.2doticon
                                                                                                                                                                                                          License: Others (Non-SPDX)

                                                                                                                                                                                                          This repository contains the core smart contracts of the Aave V3 protocol.

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                                                                                                                                                                                                                    aave-v3-coreby aave

                                                                                                                                                                                                                    TypeScript doticon star image 590 doticonVersion:v1.17.2doticon License: Others (Non-SPDX)

                                                                                                                                                                                                                    This repository contains the core smart contracts of the Aave V3 protocol.
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                                                                                                                                                                                                                              cryptosmtby kste

                                                                                                                                                                                                                              Python doticonstar image 54 doticonVersion:Currentdoticon
                                                                                                                                                                                                                              License: Permissive (MIT)

                                                                                                                                                                                                                              An easy to use tool for cryptanalysis of symmetric primitives based on SMT/SAT solvers.

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                                                                                                                                                                                                                                        cryptosmtby kste

                                                                                                                                                                                                                                        Python doticon star image 54 doticonVersion:Currentdoticon License: Permissive (MIT)

                                                                                                                                                                                                                                        An easy to use tool for cryptanalysis of symmetric primitives based on SMT/SAT solvers.
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