Polkadot RPC Endpoints & Dedicated Nodes | OnFinality

Parity

The multichain vision for Web3 starts here.

通过 OnFinality 的弹性 API 几秒钟内连接到 Polkadot，每年提供 99.99% 的高可用性。在我们全球分布的多云一键式节点解决方案上快速轻松地部署完整、validator和归档 Polkadot 节点。使用 OnFinality 的闪电恢复技术，在几秒钟内（而不是几天）完全同步您的节点！

The multichain vision for Web3 starts here.

连接到 API 服务部署专用节点

连接到公共端点

以下示例使用的是公共 API 接口*。该接口仅适用于测试。为避免限速和服务中断，立即注册来获取您专属的API key。

在 Polkadot JS 中打开

* 公共接口有速率限制

API 服务

API 功能

ArchiveTrace

API 位于

Hong KongN.Virginia

专用节点

节点类型

FullArchiveValidator

快速恢复

N.VirginiaHong Kong

节点端点

JSON-RPCWebSockets指标

Polkadot RPC Endpoints & Dedicated Nodes

Polkadot is a Layer 0 protocol that connects and secures a network of specialized blockchains called parachains. Developers build on Polkadot to create interoperable dApps, DeFi protocols, wallets, and analytics tools that can communicate across chains via Cross-Consensus Messaging (XCM).

To interact with Polkadot, applications need reliable access to the network through RPC endpoints or dedicated nodes. OnFinality provides managed Polkadot RPC APIs and dedicated node infrastructure for production workloads.

Why Use OnFinality for Polkadot RPC?

Managed API Endpoints – Get started quickly with authenticated HTTP and WebSocket endpoints. No need to run your own node.
Archive & Trace Support – Access full historical state and trace data for deep analytics and debugging.
Dedicated Nodes – Deploy a private Polkadot node for maximum performance, control, and custom configuration.
Global Regions – Endpoints available in Hong Kong and N. Virginia to reduce latency.
Observability – Monitor request usage, errors, and limits through the OnFinality dashboard.

Key Features

Protocol: Substrate JSON-RPC
Transport: HTTP and WebSocket
Advanced Access: Archive, trace, and dedicated nodes
Common Use Cases: Production dApps, wallets, DeFi products, analytics tools, games, bots, and backend services

How to Connect

Create or sign in to your OnFinality account.
Select Polkadot from the supported networks list.
Create an API endpoint or deploy a dedicated node.
Test the endpoint using chain_getBlock.
Monitor usage and move critical traffic to production.

When to Choose Dedicated Nodes

If your application requires consistent performance, custom runtime configurations, or high throughput, a dedicated Polkadot node gives you full control without sharing resources.

OnFinality makes it easy to scale from a shared API endpoint to a dedicated node as your project grows.