Polkadot RPC

With Quicknode, you get access to our global Polkadot network which always routes your API requests to the nearest available location, ensuring low latency and the fastest speeds.

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Polkadot Overview

Polkadot operates as a Layer 0 relay chain that provides shared security and cross-chain communication for independent blockchains called parachains. Rather than each blockchain maintaining its own validator set, Polkadot's relay chain validators secure all connected parachains simultaneously. Interoperability occurs through Cross-Consensus Messaging (XCM), enabling parachains to communicate while maintaining sovereignty.

Polkadot provides the Substrate framework for building custom blockchains. Developers write parachain runtime logic in Rust using Substrate's modular architecture. The platform exposes multiple API interfaces—the Polkadot JSON-RPC API for relay chain operations, Substrate API Sidecar for RESTful queries, and Asset Hub API for the system parachain that handles token transfers and NFT operations.

Interacting with Polkadot's APIs

Polkadot supports JSON-RPC API methods for querying blockchain state and submitting transactions, Substrate API Sidecar for RESTful access to historical data and account information, and Asset Hub JSON-RPC API for parachain interactions. Developers can use Polkadot.js libraries or standard HTTP/WebSocket clients to communicate with Polkadot nodes.

The Quicknode Polkadot documentation is continuously evolving as the network undergoes upgrades and changes, so we highly recommend cross-referencing with the official Polkadot documentation for the latest updates and features.

Make Polkadot API Calls

The quickest way to start building on Polkadot is to create a Quicknode endpoint and send your first JSON-RPC request.

Quicknode provides managed Polkadot endpoints, giving you immediate access to Polkadot Mainnet without the overhead of running infrastructure. These endpoints offer:

• 高い信頼性– ダウンタイムを最小限に抑えるよう設計された、世界中に分散したインフラストラクチャ
• パフォーマンスの向上– 実運用レベルのアプリ向けに、レイテンシとリクエスト処理を最適化
• 統合エコシステム– Quicknode Marketplace上の専用API（アドオン）やStreamsなどの製品を通じて、追加機能を提供

「クイックスタート」ページにアクセスして、エンドポイントを作成し、最初のリクエストを送信してください。

対応ネットワーク

Quicknode provides access to the following Polkadot networks:

メインネット

種類：制作

HTTP:

WSS：

アーカイブ：はい

剪定：なし

ネットワーク

種類

HTTP

WSS

アーカイブ

剪定

メインネット

制作

はい

なし

Network Access

Quicknode's Polkadot endpoint provides access to both AssetHub and Relaychain networks through a unified interface.

AssetHub handles most current operations including token transfers, NFT management, and parachain state queries. REST API calls target AssetHub by default:

# AssetHub (default)
curl 'https://your-endpoint.pro/blocks/head'

Polkadot Relaychain provides access to relay chain data, validator information, and historical records. Prefix REST API calls with /rc to access the relaychain:

# Polkadot Relaychain
curl 'https://your-endpoint.pro/rc/blocks/head'

JSON-RPC methods operate without network prefixes and maintain standard compatibility across both networks.

Complete reference for developers building on Polkadot with Quicknode:

クイックスタート

Get started with Polkadot quickly. Follow our step-by-step quickstart to set up your endpoint and make your first API request.

プロバイダーのエンドポイント

Learn how to configure and manage your Polkadot endpoints for optimal performance and reliability.

APIの概要

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マーケットプレイス

Quicknode Marketplaceの強力なアドオンやツールを見つけて導入し、Web3アプリケーションを強化しましょう。

エンドポイントセキュリティ

認証、ホワイトリスト、およびセキュリティのベストプラクティスを活用して、エンドポイントを保護しましょう。