Discover Arbitrum One, a Layer 2 scaling solution for Ethereum. Build faster, low-cost decentralized applications using the RPC gateway.
Arbitrum One’s RPC documentation serves as a comprehensive resource for developers looking to integrate with this Layer 2 scaling solution for Ethereum. The documentation outlines the key API endpoints necessary for interacting with the Arbitrum chain, querying blockchain data, managing smart contracts, and submitting transactions. Built on optimistic rollups, Arbitrum One enhances Ethereum’s scalability by offering faster transactions and lower fees. This guide provides examples and best practices to streamline dApp development on Arbitrum One while leveraging Ethereum’s security.
– Related: 📚 Supported Blockchains • 🌐 RPC Nodes → Arbitrum One • 🔗 Official Arbitrum One Website
RPC Gateway for Arbitrum One blockchain
Connect to Arbitrum One and Fetch the Latest Block
This widget lets you instantly query the latest block height (or equivalent) for Arbitrum One 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 Arbitrum One Node Status or Client Version via RPC
Use this pre-configured request to get version or status information for your connected Arbitrum One node. Whether it's web3_clientVersion, getblockchaininfo, or chain-specific endpoints, the method is optimized for each supported blockchain.
Test Arbitrum One RPC Methods in Postman
Explore and test Arbitrum One blockchain methods instantly using our pre-configured Postman collection. Perfect for developers who want to experiment with Arbitrum One RPC endpoints, validate API responses, or integrate Arbitrum One into their applications.
How to use the Arbitrum One 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 Arbitrum One collection
- Configure your environment: Update the
gateway-api-keyvariable in the Tatum Gateway environment - Start testing: Execute any Arbitrum One RPC method and see real-time responses
Available Arbitrum One interfaces
Arbitrum One - JSON-RPC
- eth_getbalance
- debug_storagerangeat
- eth_call
- eth_gasprice
- eth_getblocktransactioncountbynumber
- debug_getbadblocks
- eth_gettransactionbyblocknumberandindex
- eth_getblocktransactioncountbyhash
- eth_estimategas
- eth_maxpriorityfeepergas
- eth_getstorageat
- eth_getblockbyhash
- debug_tracecall
- eth_getunclecountbyblockhash
- eth_blocknumber
- eth_chainid
- debug_tracetransaction
- eth_getlogs
- eth_sendrawtransaction
- eth_gettransactionreceipt
- eth_gettransactioncount
- debug_traceblockbyhash
- eth_gettransactionbyhash
- eth_gettransactionbyblockhashandindex
- eth_getblockbynumber
- eth_getproof
- eth_getunclecountbyblocknumber
- eth_getcode
- web3_clientversion
- debug_traceblockbynumber
- eth_feehistory
Arbitrum One - Tatum API
- Generate Arb wallet
- Generate Arb account address from Extended public key
- Generate Arb private key
- Web3 HTTP driver
- Get current block number
- Get Arb block by hash
- Get the ARB balance of an Arb account
- Get Arb Transaction
- Get count of outgoing Arb transactions
- Send ETH_ARB or fungible tokens (ERC-20) from account to account
- Broadcast signed Arb transaction