Explore Optimism, a Layer 2 scaling solution for Ethereum. Build fast and low-cost decentralized applications using its RPC gateway.
The Optimism RPC documentation provides developers with a comprehensive guide to interact with Optimism, a Layer 2 scaling solution for Ethereum. Optimism uses optimistic rollups to achieve low-cost and fast transactions while maintaining the security of the Ethereum mainnet. The documentation includes key API endpoints for querying blockchain data, managing transactions, and interacting with smart contracts. Developers can build scalable decentralized applications (dApps) with enhanced performance and lower transaction costs using Optimism’s RPC gateway.
– Related: 📚 Supported Blockchains • 🌐 RPC Nodes → Optimism • 🔗 Official Optimism Website
RPC Gateway for Optimism blockchain
Connect to Optimism and Fetch the Latest Block
This widget lets you instantly query the latest block height (or equivalent) for Optimism using a chain-specific RPC method like eth_blockNumber, getblockcount, or getBlockHeight. Useful for connectivity checks, uptime monitoring, or API testing.
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Retrieve Optimism Node Status or Client Version via RPC
Use this pre-configured request to get version or status information for your connected Optimism node. Whether it's web3_clientVersion, getblockchaininfo, or chain-specific endpoints, the method is optimized for each supported blockchain.
Test Optimism RPC Methods in Postman
Explore and test Optimism blockchain methods instantly using our pre-configured Postman collection. Perfect for developers who want to experiment with Optimism RPC endpoints, validate API responses, or integrate Optimism into their applications.
How to use the Optimism Postman Collection
- Get your API key: Visit Tatum Dashboard to obtain your free API key
- Import the collection: Click the "Run in Postman" button below to import the Optimism collection
- Configure your environment: Update the
gateway-api-keyvariable in the Tatum Gateway environment - Start testing: Execute any Optimism RPC method and see real-time responses
Available Optimism interfaces
Optimism - JSON-RPC
- debug_tracecall
- eth_gettransactionreceipt
- eth_gasprice
- eth_getcode
- eth_getproof
- eth_getblockbynumber
- debug_tracetransaction
- eth_getblocktransactioncountbynumber
- eth_call
- eth_getstorageat
- eth_getunclecountbyblocknumber
- eth_getblocktransactioncountbyhash
- eth_gettransactionbyhash
- txpool_status
- eth_gettransactionbyblockhashandindex
- eth_gettransactionbyblocknumberandindex
- eth_gettransactioncount
- eth_blocknumber
- eth_chainid
- eth_estimategas
- eth_getlogs
- eth_maxpriorityfeepergas
- debug_traceblock
- eth_sendrawtransaction
- txpool_inspect
- eth_getblockbyhash
- web3_clientversion
- debug_getbadblocks
- debug_traceblockbynumber
- debug_traceblockbyhash
- eth_getbalance
- eth_getunclecountbyblockhash
- debug_storagerangeat
- txpool_content
- eth_feehistory
Optimism - Tatum API
- Generate Optimism wallet
- Generate Optimism account address from Extended public key
- Generate Optimism private key
- Web3 HTTP driver
- Get current block number
- Get Optimism block by hash
- Get the OPTIMISM balance of an Optimism account
- Get Optimism Transaction
- Get count of outgoing Optimism transactions
- Send OPTIMISM or fungible tokens (ERC-20) from account to account
- Invoke a method in a smart contract on Optimism
- Broadcast signed Optimism transaction