支持人工智能的基础设施
推荐并赚取
Ethereum
Hyperliquid
Solana
Arbitrum
BNB Smart Chain
Base
Polygon
TRON
Sui
Robinhood
SOC 2 II 类
ISO 27001
99.99%+ 的正常运行时间
Optimism Subblocks
Read preconfirmed OP Mainnet state with Subblocks, formerly Flashblocks. Use pending-tag RPC calls to update swaps, balances, and transaction status before the full block is sealed.
Preconfirmations via standard RPC
了解更多Included
Read OP Mainnet data, simulate swaps, and send transactions with reliable, high-performance Optimism RPC infrastructure.
Connect to OP Mainnet or OP Sepolia through one geo-balanced endpoint. Read contract state, follow events, and submit transactions through the nearest available region.
Build responsive Optimism apps with preconfirmed state, archive data, and predictable RPC capacity.
Read preconfirmed OP Mainnet state with Subblocks, formerly Flashblocks. Use pending-tag RPC calls to update swaps, balances, and transaction status before the full block is sealed.
Scale high-volume RPC workloads with consistent performance, unlimited requests within your RPS tier, and predictable monthly costs.
Query historical contract state and backfill OP Mainnet events for indexers, DeFi analytics, and accounting. Access archive data through your Optimism RPC endpoint.
Inspect execution with debug_traceTransaction and call traces. Diagnose reverted swaps, follow internal calls, and debug Solidity contracts.
Read liquidity-pool state, simulate swaps with eth_call, and submit signed transactions. Connect trading bots and DeFi frontends with familiar EVM tools.
Explore Optimism tooling
Backfill contract events with eth_getLogs and retrieve historical state through archive RPC. Build portfolio analytics, activity feeds, and indexers.
Explore Optimism methods
Read ETH and token balances, estimate gas, and track receipts. Connect wallets and payment backends to OP Mainnet or OP Sepolia.
Get an Optimism RPC endpoint
Read preconfirmed state with pending-tag JSON-RPC calls on Subblocks-enabled endpoints. Update swap quotes and wallet activity before the full block is sealed.
Explore Optimism preconfirmations
Trace transaction execution and diagnose reverted calls. Use Optimism debug APIs with Hardhat, Foundry, viem, or ethers.js to investigate application issues.
Explore debug and trace APIsGive production applications their own Optimism RPC infrastructure. Dedicated Nodes reserve compute and storage for your workload, with Chainstack managing node deployment and maintenance.
Choose OP Mainnet or OP Sepolia and a node mode to estimate monthly infrastructure costs.
Save over 50% on our elite pay as you go plan
在Telegram上聊天 (opens in a new tab)Customer feedback from teams building wallets, trading systems, and security tools across supported networks.
Chainstack’s robust infrastructure has significantly enhanced our ability to secure Web3 environments effectively.Chainstack has been crucial in enhancing Brave Wallet’s multi-chain functionality and UX.The Unlimited Node flat-fee model gives us cost predictability, and the performance is rock-solidWe’ve gone from weekly incidents to zero incidents.Working with Chainstack helped us cut our infrastructure costs by over 70%, all while tackling intricate challenges in Web3 security.Read preconfirmed OP Mainnet state through standard JSON-RPC calls. Update swap quotes, balances, and transaction status before the full block is sealed, without changing your EVM tooling.
Get an Optimism endpointRun OP Mainnet or OP Sepolia on infrastructure you control. Deploy OP-Reth and OP-Node with monitoring, automated updates, and self-healing operations through Chainstack Self-Hosted.
Read an ETH balance with eth_getBalance. Use the same JSON-RPC request on OP Mainnet or OP Sepolia.
查看安装指南https://optimism-mainnet.core.chainstack.com/YOUR_ENDPOINT_IDwss://optimism-mainnet.core.chainstack.com/YOUR_ENDPOINT_IDCreate an Optimism node on your chosen network. Copy your HTTPS URL from Access and credentials and replace YOUR_ENDPOINT_ID in the example.
curl --request POST \
--url https://optimism-mainnet.core.chainstack.com/YOUR_ENDPOINT_ID \
--header 'Content-Type: application/json' \
--data '{
"jsonrpc": "2.0",
"id": 1,
"method": "eth_getBalance",
"params": [
"0x38545c4b331D8BFb3bee94C62D77a6735b5eF8c0",
"latest"
]
}'该 result is a hexadecimal ETH balance in wei. One ETH equals 10^18 wei. This read does not send a transaction or spend gas.
Free developer access and paid plans for Optimism applications, onchain services, and enterprise teams.
All Developer features, plus:
Add-ons and Dedicated Node infrastructure are billed separately.
Exceptional support on every paid planExplore Optimism RPC providers, endpoint setup, and production infrastructure guides.
Connect OP Mainnet and OP Sepolia to your application.
Read article
Compare endpoints, archive data, pricing, and developer tools.
Read article
Compare L2 infrastructure for production applications.
Read article
Connect trading strategies to managed RPC infrastructure.
Read article
Optimism RPC lets applications read OP Mainnet blockchain data and submit signed transactions using Ethereum-compatible JSON-RPC. Use it to read balances, call smart contracts, retrieve logs, and track transaction receipts. Chainstack supports OP Mainnet and OP Sepolia. See the Optimism API reference.
Create a free Chainstack account, create a project, and deploy an Optimism Global Node on mainnet or Sepolia. Copy your HTTPS or WebSocket URL from Access and credentials. The Developer plan includes 3 million request units per month, up to 25 requests per second, and one node. No credit card is required.
A Chainstack OP Mainnet HTTPS endpoint follows https://optimism-mainnet.core.chainstack.com/YOUR_ENDPOINT_ID. OP Sepolia uses https://optimism-sepolia.core.chainstack.com/YOUR_ENDPOINT_ID. Copy the complete authenticated URL from your node and replace the example endpoint ID. See Optimism tooling.
OP Mainnet uses chain ID 10 (0xa). OP Sepolia uses 11155420 (0xaa37dc). Both use ETH for gas; OP is the governance token, not the gas currency. See the official Optimism network information.
Yes. Optimism supports Ethereum-compatible tooling, including MetaMask, ethers.js, viem, web3.py, Hardhat, and Foundry. Use your authenticated HTTPS URL for requests and the corresponding wss:// URL for subscriptions such as new blocks and contract logs. Follow the Optimism tooling guide.
Call eth_getBalance with an EVM address and a block tag such as latest. The result is a hexadecimal ETH balance in wei, with 10^18 wei per ETH. Token balances require a contract call rather than eth_getBalance. See the Optimism eth_getBalance reference.
Optimism Subblocks, formerly Flashblocks, expose preconfirmed state through standard JSON-RPC methods using the pending block tag on compatible endpoints. Applications can read execution updates before the full block is sealed. Preconfirmation is not Ethereum settlement or finality. See the Optimism Subblocks documentation 以及 Chainstack’s pending-state guide.
Yes. Chainstack supports archive access for OP Mainnet and OP Sepolia. Use it to query historical balances, contract storage, and past state for analytics and backfills. Archive access is available from the Growth plan, and archive requests consume 2 request units. See supported networks and modes and request-unit rules.
Yes. Deploy an Optimism Global Node with debug and trace APIs enabled to inspect execution using methods such as debug_traceTransaction. Use traces to diagnose reverted swaps, investigate internal calls, and debug smart contracts. Check the Optimism debug and trace requirements.
No. OP Mainnet, Base, and other OP Stack chains have separate chain IDs, state, and RPC endpoints. An Optimism endpoint accesses its selected Optimism network; it does not automatically provide Base or another Superchain network’s data. See the supported Chainstack networks.
Yes. Chainstack Self-Hosted supports OP Mainnet and OP Sepolia using OP-Reth and OP-Node. Deploy on infrastructure you control with monitoring, automated updates, and self-healing operations. The OP Stack setup also requires Ethereum L1 RPC and Beacon API endpoints. Check supported deployments and the installation guide.
Start with the free Developer plan. Paid plans start at $40 per month with annual billing. Unlimited Node adds predictable flat-fee capacity from the Growth plan. Dedicated Nodes start from Pro, with infrastructure billed separately. Compare plan features and current Optimism Dedicated Node configurations.
Connect to OP Mainnet at https://optimism-mainnet.core.chainstack.com/YOUR_ENDPOINT_ID or OP Sepolia at https://optimism-sepolia.core.chainstack.com/YOUR_ENDPOINT_ID. Copy your authenticated URL from Access and credentials. OP Mainnet uses chain ID 10, and OP Sepolia uses 11155420. Both use ETH for gas. See the Optimism tooling guide.
Use eth_getBalance for ETH balances, eth_call for contract reads, eth_getLogs for events, and eth_sendRawTransaction for signed transaction submission. Connect over WebSocket for block and log subscriptions. Optimism Subblocks, formerly Flashblocks, expose preconfirmed state through pending-tag calls on compatible endpoints before a full block is sealed. Use the block tag appropriate to your application’s finality requirements. See the Optimism API reference 以及 preconfirmed-state guide.
