Build Decentralized Applications on Polkadot¶

This section provides hands-on tutorials for building decentralized applications (dApps) using the Polkadot SDK and its developer toolkits. These guides help you leverage Polkadot's infrastructure to build scalable, secure, and interoperable dApps without relying solely on smart contracts.

You'll explore a range of topics—from client-side apps and CLI tools to on-chain interaction patterns—all backed by lightweight or full-node tooling.

In This Section¶

Create Account Watcher with PAPI

Build a CLI app that listens to on-chain events using the Polkadot API and responds to specific messages for a given account.

Additional Resources¶

Polkadot API (PAPI)

Learn how to use the Polkadot API to build dApps that interact with Polkadot SDK-based chains directly via RPC or light clients.

Start Building on Polkadot

Get an overview of the tools, SDKs, and templates available for building with Polkadot—from runtime development to frontend integration.