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Basic Polkadot/Substrate UI for interacting with a Polkadot and Substrate node. This is the main user-facing application, allowing access to all features available on Substrate chains.

Joystream ⭐ 1,286

Joystream Monorepo

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. Full documentation & examples available

Extension ⭐ 880

Simple browser extension for managing Polkadot and Substrate network accounts in a browser. Allows the signing of extrinsics using these accounts. Also provides a simple interface for compliant extensions for dapps.

Moonbeam ⭐ 801

An Ethereum-compatible smart contract parachain on Polkadot

Various cli tools for Polkadot and Substrate chains, including basic node monitoring, making API queries via a cli app and other command-line tools

Utilities and base libraries for use across polkadot-js for Polkadot and Substrate. Includes base libraries, crypto helpers and cross-environment helpers. Full documentation & examples available.

Substrate Api Sidecar ⭐ 204

REST service that makes it easy to interact with blockchain nodes built using Substrate's FRAME framework.

Substrate Connect ⭐ 191

Run Wasm Light Clients of any Substrate based chain directly in your browser.

Phishing ⭐ 172

A curated list of known less-than-honest operators on Polkadot and Substrate networks. Includes a simple JS utility function to check any host or address against this list.

Zombienet ⭐ 120

A cli tool to easily spawn ephemeral Polkadot/Substrate networks and perform tests against them.

A collection of WASM wrappers (mostly around Rust libraries) that are used as faster versions of JS-native functions on Polkadot and Substrate networks.

Re-usable browser libraries and React UI components used inside the polkadot.{js} family of Polkadot and Substrate applications. Full documentation & examples available

An alternative Polkadot Runtime Environment implementation acting as a full-node (excluding block production for validators) for syncing with Substrate-based chains.

Substrate Playground ⭐ 74

Start hacking your substrate runtime in a web based VSCode like IDE

Rmrk Substrate ⭐ 68

[WIP] RMRK Substrate pallets

Substrate Light Ui ⭐ 66

Minimal, WASM-light-client-bundled Substrate wallet for balance transfers

Txwrapper Core ⭐ 61

Tools for FRAME chain builders to publish chain specific offline transaction generation libraries.

Txwrapper ⭐ 59

Helper funtions for offline transaction generation.

Parachain Launch ⭐ 54

Tool to generate docker-compose.yml to launch a full relaychain - parachain testnet.

Redspot is an Substrate pallet-contracts (ink!) development environment. Compile your contracts and run them on a different networks. Redspot's core forks from Hardhat but changed a lot to suit substrate.

Contracts Ui ⭐ 46

Web application for deploying wasm smart contracts on Substrate chains that include the FRAME contracts pallet

A Substrate indexing framework

Scale Ts ⭐ 40

A TypeScript reference implementation of SCALE transcoding

Guardian ⭐ 38

Web3 Guardian - a blockchain monitoring and alerting tool

Governance app for Joystream DAO

Polkadot Basic Notification ⭐ 34

A basic, account-based, multi-transport notification service for the Polkadot ecosystem.

Substra Hooks ⭐ 33

Substrate Polkadot.js React Hooks

Subsocial Offchain ⭐ 29

Off-chain storage for Subsocial blockchain. This app builds user feeds and notifications by subscribing to Substrate events.

Open Web3.js ⭐ 28

Pallet Contracts Waterfall ⭐ 27

Collection of simple Substrate smart contract examples written in Rust, AssemblyScript, Solang and the smart contract language ink! to test substrates pallet-contracts module

Use Inkathon ⭐ 26

Typesafe React Hooks abstracting functionality by polkadot.js for working with Substrate-based networks and ink! Smart Contracts

The framework to write WASM smart contracts for Substrate Frame Pallet-Contracts in AssemblyScript.

Subsocial Js ⭐ 25

JavaScript SDK for Subsocial blockchain.

Vscode Substrate ⭐ 24

Substrate Marketplace VSCode Plugin

Build Deno.land ⭐ 24

Package publishing for deno.land/x/polkadot

Substrate Contracts Book ⭐ 23

One stop document for Substrate Wasm Contract

Halva is a toolchain for improving the experience of developing Decentralized Applications based on Substrate.

Parachains Integration Tests ⭐ 21

Tool to make Parachains integrations tests development easier and faster

Manta Front End ⭐ 19

A front end to interact with manta blockchain

UI utilities, libraries and Vue.js components in use across @polkadot-js projects

Ternoa Js ⭐ 19

Ternoa JavaScript SDK to build on top of the Ternoa Chain ⚙️

Subsembly ⭐ 16

Framework for building AssemblyScript Substrate Runtimes

Open Emoji Battler ⭐ 15

👑 Fully on-chain community-owned game in the Polkadot ecosystem

Polkaverse ⭐ 14

The codebase for PolkaVerse, a reference application built on the Subsocial blockchain. Feel free to use the code in your own Subsocial dapps.

Polkalert ⭐ 14

Polkadot / Substrate based node monitoring.

Misc. TypeScript definitions that are not yet available on DefinitelyTyped but required by other projects in this repo. Should be merged with upstream projects or the DT project.

Subsquid documentation

Subshell ⭐ 12

Substrate API playground in a Deno 🦕 repl, using polkadot-js extension as remote signer ✍️. Say goodbye to hardcoded mnemonics / seeds in dev scripts!👋

Vscode Plugin Substrate ⭐ 12

A TSS based governance chain for cross-chain zero-knowledge applications.

As Scale Codec ⭐ 11

AssemblyScript implementation of the SCALE codec used in the Parity Substrate framework.

Dappforce Substrate Multisig ⭐ 11

⚠️ Experimental ⚠️ multisig wallet module with web UI for Substrate/Polkadot blockchains.

Unstoppable URL shortener built with the ink! smart contract language.

Coding to earn! Sell opensource product as NFT ~

As Substrate Runtime ⭐ 10

This is a Substrate PoC Account-Based Runtime written in AssemblyScript.

Crust Api ⭐ 10

This project is used to provide Restful API for Crust chain

Fluent Pad ⭐ 10

No longer maintained. Exists for teaching purposes.

Substrate Api Explorer ⭐ 9

Explorer of node RPC functions for Substrate based networks

Subscript ⭐ 8

Wasm smart contract sdk written in AssemblyScript

Ink Substrate Explorer Api ⭐ 8

Ink Explorer is an application that provides Ink contracts related information on Substrate based blockchains.

Mangata Sdk ⭐ 7

trading SDK 🏎 for easy communication with Mangata node

Substrate ⭐ 7

Common types, interfaces and abstracts

Polkadot Lab ⭐ 7

Testing framework for Polkadot networks

Bridge Ui ⭐ 6

A user interface to send tokens between a ethereum and a substrate based network.

Mangata E2e ⭐ 6

Mangata tests 🔬:scientist:

Fandom shop for Artist by KodaDot team

Kappasigmamu.github.io ⭐ 5

Website for the KappaSigmaMu Fratority

Substrate Monitor ⭐ 5

A tiny monitoring service that sends notifications via email/Slack if no block was observed for > 30 seconds

AARON 1.0, An Automated Reaction Optimizer for New catalysts

Ternoa Subql ⭐ 5

Ternoa indexer to query on-chain data ⛓

Ink Substrate Explorer Frontend ⭐ 4

Ink Explorer is an application that provides Ink contracts related information on Substrate based blockchains.

Darwinia Bridge Relayer CLI Tool

Oracle Server ⭐ 4

Rmrk Balance Js ⭐ 4

Utility for reading RMRK balances across supported chains

Astar Network library for dApps and client applications

As Contract ⭐ 3

Basic Substrate smart contract written in AssemblyScript

Parallel Subql ⭐ 3

Parallel SubQuery Explorer

XCM SDK is a tool that provides an interface to send XCM messages for Substrate based blockchains.

Ternoa Doc ⭐ 3

Ternoa documentation 📚

Substrate Api Sidecar Dump ⭐ 2

A dead simple tool to scrape the default block endpoint of `substrate-api-sidecare` for the entire chain and allow queries on top of it.

Erc20 Substrate Bridge ⭐ 2

Ethereum <-> Parity Substrate Blockchain bridge for self transfers of ERC20 representation.

Basic Substrate Ui Template ⭐ 2

Setheum.js ⭐ 2

Promise and RxJS APIs around Setheum Network Blockchain RPC calls.

Superfluid ⭐ 2

Superfluid platform is a next generation DeFi platform developed using Substrate.

Epirus Substrate ⭐ 2

Epirus explorer for Substrate chains

Portablegabi ⭐ 2

Revocable, anonymous credentials. Typescript API for WASM wrapper of Go library Gabi.

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