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詳細はこちらConnect to Katana mainnet and every active testnet with low-latency RPC, full archive data, debug and trace APIs, and real-time Streams. The complete Katana data stack, managed from a single Quicknode dashboard.
SOC 2 タイプ II 認証取得・ISO 27001
Katana builders need more than basic RPC. Quicknode runs the full surface: low-latency JSON-RPC, full archive with debug, and real-time Streams, all from one dashboard.
Query, subscribe, and stream Katana data with low latency. From a single eth_call to billions of rows of historical logs, you get the right interface for the job.
Six ways to access Katana data, from a single eth_call to billions of rows of queryable history. Pick the interface, ship faster.
Standard JSON-RPC over HTTPS and WSS on Katana mainnet. Every EVM method supported, including eth_call, eth_getLogs, eth_getBalance, eth_sendRawTransaction, and eth_subscribe, with predictable rate limits.
Full historical Katana state with no pruning. Run debug_traceTransaction and debug_traceBlockByNumber against archive nodes for indexing and simulation.
Backfill and real-time Katana blocks, logs, and traces delivered to your datastore with guaranteed reliability. Filter upstream, receive only the data you actually need.
配信保証、再送信、および組み込みの再編成処理機能を備えたイベント駆動型アラート。特定のアドレス、コントラクトイベント、またはオンチェーンの条件をサブスクライブし、リアルタイムで対応できます。
Read rollup sync status and L2 output roots with optimism_syncStatus and optimism_outputAtBlock. This is the data bridges and withdrawal-proving flows use to verify Katana state against Ethereum L1.
Subscribe to new Katana blocks and logs over a persistent WSS connection with eth_subscribe. Push updates the moment they land, with no polling.
Katana is a DeFi-focused Ethereum layer 2, so the tooling you already know works unchanged. ethers.js, web3.js, viem, and web3.py all hit a Quicknode Katana endpoint the same way they hit Ethereum. Same methods, same SDK, just a different RPC URL.
Point your existing Ethereum codebase at a Quicknode Katana endpoint and deploy. Contracts, libraries, and tooling carry over.
eth_call、eth_getLogs、eth_sendRawTransaction、および eth_subscribe は、すべてEthereum での動作とまったく同じです。
// Your Ethereum code, pointed at Katanaimport { createPublicClient, http } from "viem";const クライアント = createPublicClient({// Katana mainnet, chain ID 747474chain: { id: 747474, name: "Katana" },transport: http(QUICKNODE_KATANA_URL)});const ブロック = await client.getBlockNumber();// Same methods, same SDK. Katana is a DeFi-focused Ethereum layer 2.
Open MetaMask, go to Settings, Networks, Add Network, and enter your Quicknode Katana RPC URL with the details on the right. Save, and MetaMask routes through your private Quicknode endpoint instead of a rate-limited public RPC.
Docs, guides, and runnable sample apps for every Katana workload. Clone, customize, and ship.
Full reference for every Katana JSON-RPC method, WebSocket subscription, and the debug and trace namespaces. Code examples for @quicknode/sdk, ethers.js, web3.js, and viem.
Indexes token transfers on an EVM chain using Quicknode Streams and delivers them to your own datastore and API. Works unchanged on Katana.
Runnable sample apps and starter kits across Quicknode-supported chains, including Katana. Clone one and ship.
From your first Katana endpoint to mission-critical production workloads, Quicknode scales with you. Get started in minutes.
Spin up your Katana endpoint and ship. The free tier covers prototyping and small production loads, no credit card required.
Dedicated Katana infrastructure, contractual SLAs, priority support, and procurement-ready terms for wallets, exchanges, trading firms, and high-volume protocols.
"Relay routes cross-chain intents across dozens of networks, so every new chain we add has to be rock-solid from the first block. Quicknode's HyperEVM support gave us the performance and uptime we need to quote and settle swaps in real time, without babysitting infrastructure."Julien Genestoux, VP of Engineering @ Uneven Labs (Relay)
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The Ethereum toolchain you already know works unchanged on Katana. Deploy contracts, manage endpoints, and ship from one Quicknode account.