w3f/substrate-telemetry-exporter

polkadot-js/api

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.

polkadot-js/extension

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.

open-web3-stack/open-runtime-module-library

Substrate Open Runtime Module Library

JoshOrndorff/substrate-recipes

A Hands-On Cookbook for Aspiring Blockchain Chefs