Shardeum is an EVM based autoscaling blockchain
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SubQuery is an Open, Flexible, Fast and Universal data indexing framework for web3. Our mission is to help developers create the decentralised products of the future.
IPFS implementation in Go: a daemon that stores and serves content-addressed data, with a CLI, HTTP Gateway, and RPC API
Solidity contracts implementing hash based post quantum signatures
A web-based demonstration of blockchain concepts.
- bitcoin
- blockchain
- blockchain-technology
A full stack for bitcoin and blockchain-based applications
Python-based Bitcoin and alt-coin utility library.
- python
- bitcoin
- altcoins
- segwit
A collection of practical security-focused guides and checklists for smart contract development
Promise and RxJS APIs around Polkadot and Substrate based chains via RPC calls. It is dynamically generated based on what the Substrate runtime provides in terms of metadata.
Gno: An interpreted, stack-based Go virtual machine to build succinct and composable apps + gno.land: a blockchain for timeless code and fair open-source.
- gno
- gnoland
- gnolang
- bft
The Swiss Army knife to power JavaScript based client solutions ranging from Web apps/explorers over browser extensions to server-side clients like faucets/scrapers.
Interact with Substrate based nodes in Rust or WebAssembly
Python-based EOS smart-contract development & testing framework
- eos
- smart-contracts
- python
- unit-testing
Integrated Ethereum implementation and tool suite focused on Solidity testing and development.
A high performance data transfer tool that can be used to transfer data from Bitcoin Core blockchain files to a SQL Server database
A template for kick starting a Substrate based PoS chain.
Subwasm is a cli utility to look inside a Substrate WASM Runtime. It can inspect and compare the metadata of Substrate based runtimes such as Polkadot or Kusama.
❄️ Find all used addresses in your Bitcoin HD wallets bypassing gap limits.
- bitcoin
- hd-wallet
- bitcoin-address
Halva is a toolchain for improving the experience of developing Decentralized Applications based on Substrate.
Native iOS SDK for developing client apps for Substrate-based networks
- blockchain
- ios
- kusama
- polkadot
A set of core Algorand utilities written in TypeScript and released via npm that make it easier to build solutions on Algorand.
- algokit
- lib
Substrate .NET API Core for substrate-based nodes
bitcoin node based on bitcoin-ruby-blockchain
Native Android SDK for developing client apps for Substrate-based networks
- android
- blockchain
- kotlin
- kusama