Bridge Hub Polkadot RPC Endpoints & Dedicated Nodes | OnFinality

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The development of bridges to connect other networks

Connect to Bridge Hub Polkadot in seconds with OnFinality RPC endpoints, request analytics, scalable rate limits, and 99.99% uptime for production Web3 apps. Deploy full, collator, and archive Bridge Hub Polkadot nodes quickly and easily on our globally distributed, multi-cloud, one-click node solution. Use OnFinality's Lightning Restore to fully-sync your nodes in seconds instead of days!

The development of bridges to connect other networks

Create RPC Endpoint Deploy Dedicated Node

Bridge Hub Polkadot RPC Endpoint

The below example uses the public API endpoint*. This endpoint is only suitable for testing. To avoid rate limiting and service interruption, sign up now to get your own API key.

Open In Polkadot JS

* The public endpoint is rate limited

RPC API Service

RPC API Features

ArchiveTrace

RPC Regions

N.Virginia

Dedicated Nodes

Node Type

FullArchiveCollatorArchive Norelay

Lightning Restore

N.Virginia

Node Endpoints

JSON-RPCWebSocketsMetrics

Bridge Hub Polkadot is a system parachain that enables trustless communication between Polkadot, Kusama, Ethereum, and other blockchains. It leverages on-chain light clients, BEEFY and GRANDPA protocols, and specialized pallets to provide secure cross-chain messaging and state verification. As a foundational component of Polkadot's interoperability framework, Bridge Hub supports XCM (Cross-Consensus Messaging) and hosts bridges such as Snowbridge (Polkadot-Ethereum) and the Polkadot-Kusama bridge.

Why Use Bridge Hub Polkadot RPC?

Developers building cross-chain applications, relayers, or infrastructure tools need reliable access to Bridge Hub's on-chain data. RPC endpoints allow you to query blocks, submit transactions, and monitor bridge operations without running your own node. Common use cases include:

Relayers: Submit bridge messages and claim rewards.
Analytics: Track bridge activity and asset flows.
Wallets & dApps: Enable cross-chain transfers and balance checks.
Backend services: Automate bridge operations and monitoring.

OnFinality Bridge Hub Polkadot RPC Endpoints

OnFinality provides managed RPC endpoints for Bridge Hub Polkadot, supporting both HTTP and WebSocket transports. Our infrastructure is designed for production workloads, offering:

Archive and trace support: Access full historical state and debug data where available.
Dedicated nodes: Deploy a private node for maximum performance and isolation.
Global availability: Endpoints served from N. Virginia data center.
Monitoring and analytics: Track request usage, errors, and latency through the OnFinality dashboard.

Getting Started

Create or sign in to your OnFinality account.
Select Bridge Hub Polkadot from the supported networks list.
Create an API endpoint or deploy a dedicated node.
Test your endpoint with chain_getBlock or other standard Substrate JSON-RPC methods.
Monitor usage and scale as needed.

Bridge Hub Polkadot vs Public RPC

Public RPC endpoints are suitable for lightweight testing but often lack reliability and visibility for production use. OnFinality endpoints provide authenticated access, clearer rate limits, request analytics, and a clear path to higher capacity—including dedicated nodes for demanding workloads.