Polkadot unites and secures a growing ecosystem of specialized blockchains called parachains. Apps and services on Polkadot can securely communicate across chains, forming the basis for a truly interoperable decentralized web.

Polkadot unites and secures a growing ecosystem of specialized blockchains called parachains. Apps and services on Polkadot can securely communicate across chains, forming the basis for a truly interoperable decentralized web.

Polkadot's unique technology allows it to offer a number of benefits, such as:

🔹 Scalability

🔹 Interoperability

🔹 Security

🔹 Upgradeability

💰 Best overall submission built on Polkadot = $25,000 and 2k USD worth of KILT Coins!

Checkout all challenges here

Judging criteria

You can find our general judging criteria below. Pay attention, some challenges may have their own criteria, please find those under the challenge description.

Impact and Usefulness

How impactful and useful is the submission in the Polkadot/Kusama/Substrate ecosystem?

Web3 Contribution and Advancement

How does the submission contribute to and advance Web 3.0 as a whole?

Originality, Creativity and Innovation

How new and novel the submission is versus existing technologies?

Technical Difficulty

What is the level of skill or knowledge required to build the submission?

Mass Usability

How feasible is the idea? How adaptable is it across other integrations? How sound is the business model?

Polkadot ecosystem workshops

Save the dates for the workshops and lear more about the Polkadot ecosystem!

Other useful resources

Below you’ll find general Polkadot resources that can help you guide your way - if you wanna go down the rabbit hole and dive even deeper for wikis and documentation or find the relevant Discord channels, this is where you’ll find plenty of information.

👷‍♀️Documentation

• Official Devhub Documentation - The entry point for learning about Substrate, including conceptual and reference material.
• Tutorials - Hands-on tutorials to learn everything needed to start building your own Substrate blockchain.
• How-to Guides - Step-by-step implementation guides of common patterns when developing with Substrate.
• Rustdocs - API reference documentation.
• Polkadot Wiki - Polkadot’s official documentation portal, covering everything you need to know about building and interacting with Polkadot.

💻 Primary GitHub Repositories

• Substrate
• Polkadot

🎨 Templates

• Substrate Node Template - A bare-bone Substrate node to build on.
• Substrate Front-end Template - A React app template for building front-ends for Substrate nodes.
• Parachain Node Template - A Cumulus-based Substrate node to build a parachain.

🛠️ Tooling

• Important and useful tooling can be found in the Substrate Documentation, located under Explore Tools.
• Archive - Index a chain's block history into a database
• Sidecar - REST service to interact with Substrate nodes.
• Polkadot-launch - CLI tool to launch a Polkadot test network.
• Tx-wrapper-core - Create chain specific offline transaction generation libraries.
• Cargo-contract - Setup and deployment tool for developing smart contracts with ink!

📚 Libraries

• Polkadot-js-api - Interact with Substrate nodes in Javascript.
• Subxt - Submit extrinsics to a node via RPC in Rust.
• Substrate-connect - A JS library and browser extension to run an in-browser light client for your application.
• Frontier - An Ethereum compatibility layer for Substrate chains.
• Cumulus - A set of tools for writing parachains.

👇 Useful Projects

• Polkadot-JS Apps UI - In-browser Substrate network wallet & more.
• Polkadot-JS Extension - Wallet as a browser extension
• Substrate Playground - Try out Substrate, right in your browser.