Substrate

Connect

The easiest way to connect to Polkadot, Kusama, and Substrate-based chains.

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What is Substrate Connect?

A fast, secure, and decentralized way to interact with Polkadot, Kusama, and their parachains right in the browser, Substrate Connect helps you build better end-user experiences for Web3 apps.

Substrate Technology

Light Client Based

Light clients allow you to interact with a blockchain in a less resource-intensive way than running a full node. Because they can quickly sync with a blockchain and run locally in browsers and on mobile and IoT devices, light clients are set to power the future of decentralized applications.

Effortless Connectivity

Running a full node requires a lot of knowledge, effort, and resources, and connecting to remote third-party nodes can be insecure and unreliable. Substrate Connect is the most convenient way to securely and trustlessly connect your app to any Substrate-based chain.

More on light clients

The Browser Extension

Substrate Connect can run in the browser with each tab running a single light client, but running it as a browser extension will provide a smoother, faster experience. When run as a browser extension, multiple light clients can run simultaneously and can continuously sync as long as the browser stays open. It works on all major browsers and does not require a TLS certificate for connecting to nodes.

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Developer Docs

Supported Networks

Supported

Polkadot

Scalable sharded chain and the first protocol that provides a secure environment for cross-chain composability.

KUSAMA_logo

Supported

Kusama

A network built as a risk-taking, fast-moving ‘canary in the coal mine’ for its cousin Polkadot.

Westend

Supported

Westend

Testing environment for Polkadot and Kusama deployments and processes.

Rococo

Supported

Rococo

Testnet designed for parachains and related technologies: Cumulus and HRMP.